What Is Immersion Gold Pcb?（4 Answers）
Electroless gold plating and gold immersion plating are commonly used processes in circuit board production nowadays. In simple terms, electroless gold plating involves the chemical deposition of a layer of metal coating on the surface of the circuit board through a chemical oxidation-reduction reaction. The copper on the circuit board is mainly made of pure copper, which is susceptible to oxidation in the air. This can lead to poor solderability or inadequate contact, thereby reducing the performance of the circuit board. As a PCB manufacturer specializing in high-end applications, PCBBUY has provided customized services to multiple well-known companies.If you want to order PCB product, please check and custom your order online. Why is Immersion Gold Pcb used? The copper on the circuit board is mainly made of pure copper, which is susceptible to oxidation in the air. This can lead to poor solderability or inadequate contact, thereby reducing the performance of the circuit board. To address this issue, surface treatment is required for the copper solder joints. Electroless gold plating is a process that deposits a layer of gold on the surface, effectively acting as a barrier between the copper metal and the air to prevent oxidation. Therefore, electroless gold plating is a method of surface oxidation prevention, where a layer of gold is chemically deposited on the surface of the copper, also known as gold immersion. What are the characteristics of Immersion Gold PCB? l The gold-plated board has a bright color, good appearance, and attractive visual appeal.l The crystalline structure formed by electroless gold plating enables better soldering performance, ensuring quality.l Since the gold plating is only present on the solder pads, it does not affect the signal transmission on the copper layer due to the skin effect.l Gold has stable metallic properties and a denser crystal structure, making it less susceptible to oxidation reactions.l As only the solder pads have nickel-gold plating in electroless gold PCBs, the bond between the solder mask and the copper layer is stronger, reducing the chances of micro-shorting.l Engineering compensation does not affect the spacing of the circuit.l The stress in electroless gold-plated boards is easier to control. What are the benefits of Immersion Gold plating as a surface treatment? The advantages of electroless gold plating include stable color deposition, excellent brightness, and a smooth and even coating, resulting in excellent solderability. Typically, the thickness of gold in electroless gold plating is around 1-3 microns, making it relatively thicker compared to other surface treatment methods. This makes electroless gold plating commonly used in applications such as keypad boards and gold finger boards, as gold has strong conductivity, good oxidation resistance, and a long service life. What are the advantages of using a circuit board with Immersion Gold plating? l The gold-plated board has a bright color, good appearance, and attractive visual appeal.l The crystalline structure formed by electroless gold plating enables better soldering performance, ensuring quality.l Since the gold plating is only present on the solder pads, it does not affect the signal transmission on the copper layer due to the skin effect.l Gold has stable metallic properties and a denser crystal structure, making it less susceptible to oxidation reactions.l As only the solder pads have nickel-gold plating in electroless gold-plated boards, the bond between the solder mask and the copper layer is stronger, reducing the chances of micro-shorting.l Engineering compensation does not affect the spacing of the circuit.l The stress in electroless gold-plated boards is easier to control. Customized processes with PCBBUY: l Support for 1-14 layer small to medium batch orders; for more layers, consult customer service.l HDI blind via technology is available.l The board material uses JianTao A-level board (KB-6164) and can be made halogen-free.l Maximum size can be up to one meter.l Various ink colors such as pink, transparent, and purple are available.l Support for copper thickness up to 10oz and hole copper of 35μm.l Customizable lamination structure for multilayer boards.l Support for multi-level impedance matching.l Special processes such as copper wrap around the board edge, dual-tone ink, press-fit holes, counterbore holes, slots, stepped holes, stepped slots, and selective nickel-palladium-gold plating are available.l PCBA assembly starting from one set, available for single or double-sided assembly.
PCB Knowledge ⋅ 05/31/2023 16:00
What is the basic definition of THT in PCB?
Through hole technology involves inserting components with tails or leads into holes drilled in the PCB. These components will be described as through board components. The leads can then be soldered onto pads or lands on the underside of the board, usually with a wave solder process (but also by hand). Are you going to learn more professional knowledge about THT PCB? If you are searching for more information of THT PCB, please check and read the content below in this passage.If you want to order PCB product, please check and custom your order online. What is the basic definition of THT in PCB? Before the invention of the SMT ( Surface Mount Technology) all components were assembled to the PCB with leads going through component holes in the board. This technology dominated the industry till the end of the eighties. Today most components placed are SMT components. You could think that THT (Through Hole Technology) is now outdated and not used anymore, as SMT is more efficient, cost effective and adapted to denser boards. However THT offers specific benefits that keep it relevant. The bonds created between THT components and the board are far stronger than SMT bonds, making THT the ideal choice for components that will undergo mechanical and environmental stress or high heat. In case of prototyping THT components are also easy to change, making them perfect for testing and hobby users. There are disadvantages too. Through hole components are much bigger and the component itself is on one side but the solder joint is on the other side, so using space on both sides. THT also restricts the available routing area on inner layers since the holes must be drilled through all the PCB layers. What are the technologies of THT in PCB? The THT assembly process is not automated, depends on the skills of the operators, is thus less reliable and more expensive than SMT. Before placing the TH components we first cut the leads to the required size. Some components need to be placed at a certain distance of the board. We use ‘spacers’ from plastic or metal to place the components at the desired height. The spacers are fixed by soldering, screwing or snap-fitting. Through hole is one of essential parts for multi-layer PCB design. A through hole is composed by three parts: via, pad and isolation area of power plane, which can be demonstrated in the following image. THT is obtained by plating a layer of metal on hole wall in a way of chemical deposit so that copper foil from each internal layer or plane of a circuit board can be connected with each other. Two sides of through holes are generated in the shape of an ordinary pad, both of which can be directly connected with tracing on top and bottom layers and can be maintained unconnected as well. A through hole plays a role in electrical connection, fixation and positioning components. As far as THT is concerned, through holes are generally classified into through-hole via, blind via and buried via: Through-hole via goes through all layers of a circuit board, applicable for internal interconnection or playing a role as a positioning hole. Since through-hole vias are accessible in technology with a low cost, they are widely applied by most PCBs. Blind via refers to the hole responsible for the connection between surface traces and internal traces below with certain depth. Ratio between via depth and via diameter usually doesn't exceed a certain value. Buried via refers to connecting via located in internal layers, which cannot be seen from the appearance of a PCB board because it fails to be expanded to the surface of circuit board. What are the differences of THT VS SMT? THT and SMT are two reliable mounting technologies in PCB assembly. However, SMT is more reliable and more common. There are differences between these two technologies. While SMT replaces THT, THT is still being used in PCB assembly. THT inserts electronic component leads into drilled holes on a circuit board. Most times, manufacturers carry out this technique manually. SMT technology doesn’t require as many drilled holes as THT does. The use of pick and place machines in SMT makes the technique much easier for manufacturers. SMT doesn’t require leads and can be directly mounted on the circuit board. Whereas, THT requires lead wires that manufacturers place in drilled holes. SMT requires advanced production and design skills compared to THT. THT vs SMT In terms of manufacturing costs, THT involves a higher cost of manufacturing than SMT. However; capital investment for automated equipment is higher than that of THT. THT is ideal for certain applications. Through hole boards are ideal at the prototype stages of a project. For a through hole board, manufacturers don’t need to produce a new solder stencil anytime the circuit board goes through a revision change. THT vs SMT via through hole technology. This technology is ideal for the manufacturing of bulky components. SMT is ideal for higher circuit speeds since it features fewer holes. Unlike THT, SMT allows assembly automation which is ideal for the production of higher volumes at reduced costs. SMT provides more board space during assembly, unlike THT which uses up the board space. THT helps manufacturers to check mechanical problems during validation. The manufacturer can fix this problem during redesign without any assembly difficulties. However, in SMT, this is difficult to fix. This is because warp and twist is easier to fix on a manually-assembled PCB.Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/31/2023 15:16
How can you be prepared for PCB prototyping to be built?
PCB prototypes are early samples of products built with the sole purpose of testing design ideas to see if they work. Although most prototypes, in general, are made to test basic user functionality, engineers require somewhat, if not entirely, functional PCB prototypes to check the complete functionality of designs. • Detect design flaws early in the production process before you invest significant capital• Cost-effectively test multiple designs• Get an accurate portrayal of how your board will function In this passage, you can get all the basic information about rapid prototyping PCB assembly. If you are looking for the professional knowledge about rapid prototyping PCB assembly, please check and read the content below for more.If you want to order PCB product, please check and custom your order online. How can you be prepared for PCB prototype to be built? When building a printed circuit board, there are a few things that you should complete before you submit your design for prototyping: PCB hole size tolerance Proof of concept: A design proof of concept must be fully developed with the circuitry already tested on a breadboard or through simulation. With the circuitry verified on your POC, you’ll spend minimal time testing the prototype, saving on expenses, and possibly additional redesigns. Ready for manufacturing: Your PCB layout should be complete and ready for manufacturing, including adherence to the design for manufacturing (DFM) requirements. You’ll probably be making board changes to a prototype design to incorporate minor corrections and enhancements, and the last thing you want is to completely redesign the board for mass-production. This would consume more time and expense, and likely require another prototype to re-verify the testing. Good component choices: Many times a prototype design is rushed through production to test the functionality of the circuitry. Such a choice is understandable but can create problems if care wasn’t taken in selecting the components for the board. For circuit boards that will be mass-produced for a long period, they must have PCB components that won’t be discontinued unexpectedly. Finding secondary market replacements for components that have gone end of life (EOL), or redesigning the board to accept new parts can be expensive and time-consuming. Complete documentation: Make sure that your PCB design is well-documented for its fabrication and assembly, including a complete bill of materials (BOM). This will mitigate delays or manufacturing mistakes and give the contract manufacturer something to work with if new documentation needs to be generated later. How to process the PCB prototyping? Manufacturing is different from designing The design of your PCB might look good on paper or a computer screen - but it can be an entirely different story when it comes to manufacturing it. For example, there may not be sufficient tolerances between tracks on the board, which later on in the process could result in the circuit shorting out. Or perhaps the design includes a number of components positioned closely together, each with a different thermal mass. Achieving a quality solder joint on each of these components without heat damaging the rest of the circuit board requires expert process engineering skills. If you are manufacturing a double-sided PCB, there are other factors to consider. Adopting this approach can allow you to fit more components into a limited space or to keep down costs. However, you will need to ensure that, where possible, your largest components are all placed on one side of the board and that this side is passed through the oven second. Otherwise, you risk these components falling off the board. You can use glue to hold down particularly difficult parts, but this requires additional manual work. Although the design and manufacturing of a printed circuit board assembly can be generalized as schematic capture, PCB layout, and circuit board fabrication and assembly, the details of each step are very involved. We’ll take a look here at some of the more specific aspects of each of these steps. Before you can start the design of the board within the CAD tools, you have to make sure that you have the library parts to work with first. For the schematic this means creating logic symbols for the parts that you will be working with; resistors, capacitors, inductors, connectors, and integrated circuits (IC’s). With these parts ready for use, you can then begin to organize them on the schematic sheets within the CAD tools. Once the parts are roughly placed, you can then draw in the lines of connectivity between the pins of the schematic symbols. Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/30/2023 14:12
How to Improve PCB Prototyping with 7 Effective Tips？
A PCB prototype is one of the earliest steps in the manufacturing of an electrical device. Each device needs a PCB, so manufacturers will design a prototype to be sure it gets the job done. A PCB uses conductive tracks soldered onto a metal or epoxy board to move the current through it. With a prototype, manufacturers can find out quickly whether the PCB sends the current to power the device. The prototype is the sample that lets the manufacturer test the design. They are the basic functionality test that each manufacturer needs to do before committing to a design and mass producing them. And in this passage, we will talk about the methods of PCB prototyping and please follow us and read the content we provide.If you want to order PCB product, please check and custom your order online. How Are Prototype PCBs Produced? There are two main methods for prototyping a PCB: Through-hole TechnologyThrough-hole technology is the traditional method of manufacturing PCBs and prototypes. This method involves inserting leads through holes on a single side of the circuit board. Then, the leads are soldered to the copper or other metal layer on the other side. Manufacturers who use through-hole technology often make prototypes by hand. They usually have some issues because they don’t always have all of the same robust components that go into making the final version. These hand-made prototypes tend to be simple in design, and some do not last through the challenges that arise during the testing process. Surface-mounted TechnologyThis method of producing a prototype is more technologically advanced. Surface-mounted technology does not need leads. Instead, the components are soldered in place usually with a speedy soldering technique. SMT allows manufacturers to create more precise, compact boards with complex abilities. Components can be added to both sides of the board because of the soldering technique. These prototypes tend to last through testing procedures because the process makes them stronger than those made through through-hole techniques. SMT prototypes can be made quickly and efficiently. How to Improve the PCB Prototyping? Fortunately, there are several ways to improve the quality of your prototype with a few simple techniques. Create a Bigger PrototypeWhen making a prototype, you should make it larger than the one you plan to manufacture in mass. With a large prototype, you can see the components clearly and recognize how they work. This gives you room to make changes if the prototype needs to be debugged or probed during testing. Use High-Quality Materials and ComponentsWith high-quality materials, you can see exactly how the prototype will work when put through the rigors of testing. If you plan to use high-quality materials in your actual PCB, you should use the same materials in the prototype. When you use low-cost materials, you run the risk of having problems with your prototype. To prove that the prototype will work, you should only make it the same way with the same materials and components that your final product will have. If you want to test it the way you will produce it, you should make the way you plan to produce it in bulk. Produce Design Options for Your PrototypeSome manufacturers prefer to produce two or more prototypes so they can see which one works more efficiently. So, if you need to make design options, then make them. You can test both PCBs and find out which has the better design. Choose a Quick Turn Prototype Assembly HouseThere are PCB manufacturers who will turn around a prototype quickly because they have the tools and components to do so. Others will need significant time to make a single prototype that meets the client’s needs. If you need a quick-turn prototype, then you should turn to someone who specializes in speeding through prototypes. When you hire the right people to make your designs, you will get them quickly and to your specifications. Ensure Coordination with the Assembly HouseBefore you order your prototype, you should have a chat with your assembler. They should be able to meet your needs by selecting options that they can make quickly and to your specifications. They know what works best and can make recommendations to you. Hand Over Intelligent CAD FilesYour prototyping manufacturer will need CAD files with the layout for the PCB. The quickest way to get the prototype made is to give your manufacturer ODB++ files with all of the information they need. Ask for a Design for Assembly ChecksAs you work with your designer and manufacturer, ask for checks on the design to see if there are any problems with manufacturing. With an analysis, you should be able to see how effectively the prototype works so you can make necessary changes. Have a Post-Build InspectionTo get the full idea of how the PCB prototype works can be determined by testing, but also by post-build inspections. Manufacturers use the automated optical inspection (AOI) tool and the 5DX x-ray to look for errors when comparing the design blueprints to the actual prototype. With these inspection tools, errors that are not visible to the naked eye are easy to spot. By improving the quality of your PCB prototyping process in the beginning, it can save you time and money in the long run. Saving money on prototyping does not mean that you choose low-quality components or boards. The best way to save money is to make a prototype that is close to the final product so you can learn exactly what works and what does not work.Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/29/2023 13:56
Why we need PCB V-cut for manufacturing?
The printed circuit board is also known as a PCB array. Although a single board that incorporates multifold separate boards. When put together, the panel is then severed one by one into single PCBs. However, the V cut could also be manually broken. Though, manual breakage is not recommended to avoid the PCB from bending. If you are going to learn more knowledge about PCB V-cut, you can check and read the content below for more information of PCB V-cut below in this passage.If you want to order PCB product, please check and custom your order online. Why we need PCB V-cut for manufacturing? Cut is mainly used when you need to group a set of circuit boards to make the assembly process more efficient. The idea and the purpose behind cut the PCBs are to create a solid structure for the assembly process that allows you to apply minimal pressure and separate the assembled boards. The purpose of PCB V-cut is to make more efficient use of board space and reduce manufacturing costs by making many of the same PCB on one manufactured board by providing a final board format that is more friendly for the manufacturer. You can also put two or more related circuits on the same assembly for more efficient sub-assembly later on. Proper cut helps the customer, engineer, or technician separate the sub-PCBs that have been scored apart from the single manufactured PCB without breakage. This effectively turns on PCB into many. Being able to V-score PCB provides excellent value to you or someone that has hired you. Being able to V-score a circuit board not only saves time and money, but it also lets you easily separate parts from a completed assembly. What are the rules of PCB V-cut? Scoring (also known as v-cut) is used for mechanical pre-separation of circuit boards. A V-shaped breaking line is formed in the circuit board with a precision cutting tool. Please observe the following rules: · The circuit boards spacing in the layout is 0.0mm· Scoring lines must be straight; horizontal and vertical lines are possible, and always run from circuit board outer edge to circuit board outer edge· Jump scoring is possible. Please note that the roller blade of the scoring machine requires an entry and exit path. Therefore, the starting or end point of a scoring line must not be directly adjacent to the next circuit board, a distance of 15mm is necessary· PCBs down to a minimum thickness of 0.8mm (on request 0.5mm as special production) can be scored. Where applicable, scoring is done one-sided.· If you separate the panel by hand, we recommend scoring only down to a minimum PCB thickness of 1mm for handling reasons. What are the terms of PCB V-cut? · Rails: also referred to waste tabs or border. Rails are not the parts of the PCB board, but the extra material around your PCB(s) to form a panel. Rail is usually applied for enforce the mechanical stability of the panel and allows non-functional material outside the PCB which can be used for clamping the panel during assembly.· Fiducials: Fiducials are little target registration marks that etched on panel rails or inside of PCBs on top and/or bottom copper layers, and allow the vision system of the SMT machines to recognize where the PCB is at, and where the SMD components are placed.· Tooling Holes: Tooling holes in the four corners of the PCB panel rails be used by the PCB fabricators for aligning the board during drilling, routing and E-test fixtures; the assemblers for alignment with stencils during solder pate printing, and for alignment with SMT carriers, PCBA testing fixtures, or final enclosure assembly (mating with small moulded plastic posts). What are the common problems of PCB V-cut? However, PCB comes with varying issues. It could be that parts get away easily which cracks the board or measurement issue. These issues could rise as a result of a bad singular procedure and wrong measurement. Stiff resistance in detaching parts from the assembled design could be as a result of how it was earlier fixed. Therefore, many times, manual separation has not been a good option to detach the assembled parts. The effect of this creates more problems for the board. Forcefully detaching parts from the assemblies could lead to components breaking. Fiberglass could break as well the resin base laminate. To reduce or put an end to some of the issues faced by this process, observing a few rules will be helpful · Spacing on the board layout must be at 0.0mm· The V cut lines have to be straight, although the vertical and horizontal line is viable.· The lines should run from one PCB outer edge to another· Separation done by hand should be on a PCB density of 1 mm· Jump cutting is feasible as well.Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/26/2023 14:49
5 methods for through-hole treatment of PCB solder resist ink
According to the curing method, PCB solder resist ink can be classified into photosensitive ink, heat-curable ink, and UV-curable ink. Based on the type of board, there are PCB rigid board solder resist ink, FPC flexible board solder resist ink, and aluminum substrate solder resist ink. The solder resist ink for aluminum substrates can also be used on ceramic boards.Through-holes are generally categorized into three types: blind vias, buried vias, and through vias. "Blind vias" are located on the top and bottom surfaces of the printed circuit board (PCB) and have a certain depth, used for connecting surface and inner layer circuits. "Buried vias" are internal connection holes in the PCB's inner layers and are not visible on the surface. "Through vias" penetrate the entire PCB, connecting the top layer to the inner layer and then to the bottom layer.In the PCB solder resist process, common techniques for handling through-holes include via capping, via plugging, via tenting, resin filling, and conductive fill plating. Each of these techniques has its own characteristics.If you want to order PCB product, please check and custom your order online. NO.1: Via CappingVia capping refers to covering the via pads with solder resist ink, without any solder on the pads. This technique is commonly used in most PCBs. It is recommended to avoid via diameters larger than 0.5mm, as larger diameters may result in ink quality issues inside the via. When converting PCB design files to Gerber artwork files, the via tenting feature should be disabled, as the via would appear as an open window instead of being capped.NO.2: Via TentingVia tenting refers to leaving the via pads exposed with copper, which are then surface-treated with gold or tin. The purpose of via tenting is to allow the solder to flow into the via during wave soldering, increasing the via's current-carrying capacity. Via tenting has the same effect as through-hole plugging, and it doesn't require disabling the via tenting feature when converting to Gerber files.NO.3: Via PluggingVia plugging involves filling the via hole walls with solder resist ink. During production, solder resist ink is inserted into the vias using aluminum foil, followed by applying solder resist ink to the entire board. The purpose of via plugging is to prevent solder from flowing through the via during wave soldering and causing short circuits on the component side. When converting design files to Gerber files, the via tenting feature should be disabled.NO.4: Resin FillingResin filling refers to filling the via hole walls with resin and then leveling the solder pads. This technique is suitable for any type of one-sided or two-sided windowed vias. The purpose of resin filling, from a process perspective, is to prevent the PP adhesive used during lamination from flowing into the hole if it is not resin-filled before lamination, which could lead to delamination and board failure. From a design perspective, if there are vias drilled on the solder pads, not filling them with resin before leveling would result in a smaller soldering area and poor soldering quality.NO.5: Copper Fill PlatingCopper fill plating involves filling the via hole walls with copper and then leveling the solder pads. This technique is suitable for any type of one-sided or two-sided windowed vias. The purpose of copper fill plating is to accommodate high currents in large vias. The cost of copper fill plating is much higher than resin filling. When designing files, simply disable the via tenting feature.
PCB Knowledge ⋅ 05/25/2023 17:20
What Are the Types and Properties of Rogers PCB ?
Rogers is a company that manufactures the laminate materials that are used to make circuit boards. Most circuit boards are made of a material known as FR4 (Flame Retardant level 4), which is a glass fiber / epoxy composite, with copper foil laminated on one or both sides. Rogers will sell you FR-4 laminates (FR-4 core with copper laminate), they are better known for cores with better high frequency properties, such as PTFE (Teflon). They’re more expensive than fiber glass, but are less at high frequencies. This makes them be good for RF circuit boards. In this passage, we are going to provide all the details about Rogers PCB. If you are going to search for more information of Rogers PCB, please check and read the content below.If you want to order PCB product, please check and custom your order online. What are the types of Rogers PCB? Rogers PCB has various types with different resistance for harsh conditions. Plus, the Rogers PCB has two main categories. They are Thermostat and PTFE-based materials. So, we’re going to list the three major types. Laminates · Woven Glass Reinforced Modified Epoxy IMS· PTFE Ceramic· Ceramic/Woven Glass UL 94 V-0 laminates/Hydrocarbon· Cross-Plied Woven Glass-Reinforced PTFE· PTFE Random Glass Fiber· Woven Glass/Ceramic/Hydrocarbon· Woven Glass Reinforced Modified Epoxy Laminates· Filled PTFE Composite· Woven Glass Reinforced PTFE Antenna Grade Laminates Bonding Materials · Woven Glass / Prepreg / Hydrocarbon / Ceramic· Thermoset Thermally & Electrically Conductive Adhesive (TECA) Film· Ceramic PTFE Bondply Metal Claddings · Electrodeposited Reverse Treated· Resistive Foil· Electrodeposited· Rolled What are the properties of Rogers PCB? RO3000 series: Based on ceramic-filled PTFE circuit materials, the models are: RO3003, RO3006, RO3010, RO3035 high-frequency laminates. RT6000 series: Based on ceramic-filled PTFE circuit materials, designed for electronic circuits and microwave circuits that require high dielectric constants. The models are: RT6006 dielectric constant 6.15, RT6010 dielectric constant 10.2. TMM series: composite materials based on ceramics, hydrocarbons, and thermosetting polymers. The models are: TMM3, TMM4, TMM6, TMM10, TMM10i, TMM13i, and many more. 3001 Bonding Film (Thermoplastic Chloro-fluorocopolymer)RO3000® series High-Frequency Laminates (PTFE/Ceramic)RO3035® series High-Frequency Laminates (PTFE/Ceramic)RO3200® series High-Frequency Laminates (PTFE/Ceramic)RO4000® High-Frequency Laminate with TICER FoilRO4000® laminates datasheet and fabrication guidelines: RO4003C, RO4350BRO4400® prepreg datasheet and fabrication guidelines: RO4450B, RO4450FRO4500® Antenna Grade Laminates for High Volume ApplicationsRT/duroid® 5870/5880 Glass Microfiber Reinforced PTFE CompositesRT/duroid® 6002 laminate datasheetRT/duroid® 6006/6010 laminate datasheetRT/duroid® 6202 laminate datasheetRT/duroid® 6202PR laminate datasheetTMM Thermoset laminate datasheet: TMM3, TMM4, TMM6, TMM10, TMM10iULTRALAM 2000 laminate datasheetULTRALAM 3000 LCP laminate datasheet: ULTRALAM 3850ULTRALAM 3000 LCP Prepreg: ULTRALAM 3908 Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/24/2023 16:15
What Are the 3 Essential Function PCB Equipment?
PCB milling has advantages for both PCB prototyping and some special PCB designs. And it doesn’t need to fabricate the circuit board with chemicals that may be the biggest advantage. On one hand, it needs to take time to outsource as creating a prototype. The other one is to make a circuit board in-house. However, there will have some problems with chemicals and disposing thereof using the wet process for in-house production. In this passage, we are going to provide you all the information of PCB equipment. If you are going to learn more about PCB equipment and the function, please check and read the content below.If you want to order PCB product, please check and custom your order online. What equipment is used to PCB assembly? The Solder Paste Printing MachineThe first significant piece of assembly equipment is the Solder Paste Printing Machine. This machine holds the PCB locked in place in the automated paste printer. Then, using proper amounts, a squeegee applies solder paste on the pads. Next, a blade drags across the stencil and spreads the solder paste evenly in the holes, so only the areas of later contact get a layer of the glue. The stencil is removed by the machine after. If all went well, the solder paste should now be where the components will be placed later. The Solder Paste Inspection (SPI) MachineSMD soldering issues are often traced to cheap solder paste printing. Any mistakes at this step can mean that the assembly overall is not as reliable or robust as it should be. Therefore, the next step is to inspect the solder paste is appropriately printed onto the board using an SPI machine. The SPI machine uses cameras to capture 3D images and evaluate the solder paste through solder volume, alignment, and height. It can also identify unsuitable sizes and imperfections so manufacturers can correct them. The Pick and Place MachineThis machine picks components and places them on the board. It’s perhaps the most obvious step of the assembly process and the most fruitful to observe. Traditionally, this stage was painstakingly done by hand using tweezers. But thanks to progress in technology, manufacturers have now automated this step. The machine suctions up SMT components and places them accurately on top of the solder paste in the pre-programmed positions. They’re put down at high speeds and can place up to 30,000 components an hour. In PCB assembly, there are 4 main stages of SMT, or Surface Mount Technology assembly using the reflow method, which are paste application, automated component placement, soldering, and inspection (plus testing, if requested). The basic equipment required for PCB assembly includes: · Solder Paste Printing machine· Solder Paste Inspection (SPI) machine· Glue Dispensing machine· Pick-and-Place machine· Reflow Soldering machine· Wave Soldering machine (for through-hole components)· Automatic Optical Inspection (AOI) machine· In-Circuit Test (ICT) Fixture· Functional Validation Test (FVT) Fixture What is the importance of PCB Equipment? Medical equipment manufacturing is a tightly controlled process to ensure that the products built are of the highest quality. To accomplish this, manufacturers must keep the following goals in mind: · The product has to work in all circumstances, and therefore must have a more robust design than standard consumer products.· The product has to be safe to operate in its expected conditions. Medical equipment can be used in a variety of environments, and users need to be able to operate the equipment without fear of shock or failure.· The product has to be designed according to applicable industry standards, such as ISO 13485. Among other things, this standard defines traceability requirements so that you can quickly find out which parts are used in which devices in case there is ever a reported problem with a specific component.· The product has to be built by a manufacturer that carries the applicable licenses to build medical devices, such as the medical device manufacturing license of the State of California.Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/23/2023 15:34
What Are the 5 Essential Steps of SMT Factory in PCB Industry?
Surface mount technology became known in the 1960s, and the applicability slowly rose in the 1980s. This technology was known as planar mounting in the beginning. The technique of surface mounting involved SMDs or surface mound packages. Components in this board have lead surrounding or underneath. In this passage, we will tell you everything about the SMT factory. If you are looking for more about SMT of PCB, please check and read the content below for more professional information.If you want to order PCB product, please check and custom your order online. What are the steps in PCB SMT factory? Electronics manufacturing using surface-mount technology (SMT) simply means that electronic components are assembled with automated machines that place components on the surface of a board (printed circuit board, PCB). In contrast to conventional through-hole technology (THT) processes, SMT components are placed directly on the surface of a PCB instead of being soldered to a wire lead. When it comes to electronic assembly, SMT is the most frequently used process in the industry. Electronic assembly encompasses not only placing and soldering components to the PCB, but also the following production steps: · Applying soldering paste, which is made of tin particles and flux, to the PCB· Placing SMT components to the soldering paste on the PCB· Soldering the boards with a reflow process. What is the working process of PCB SMT factory? Surface Mount Technology (SMT) is the method used to mount electrical components directly onto the surface of a PCB. This multi-step process begins with the stenciling solder paste. Think of it like screen-printing a t-shirt, only instead of ink, we use a solder paste to print the paste, and then the pick and place machines place the parts on the board. After the PCB boards with components are mounted, they go through a reflow oven to melt the solder. The SMT process includes multiple inspection points to ensure the highest quality at every stage of manufacturing. Factory has five SMT lines, including two that are dedicated to their Express Prototyping facility for quick-turn electronics manufacturing and prototyping services. How to choose PCB SMT factory? Choose the equipment This is the first and most important thing to do when choosing a production facility. The factory must be located in an area with excellent communication systems. It is suggested to ask the factory owner why they chose that area. Is it close to the railway or highway? Is it near the airport? These are all good questions to ask when choosing a factory. If you are going to have your own transportation, it becomes less important if it is close to transportation lines, but if you are going to use public transport, this will become a priority. Industry experience Many factories will claim that they have been in the industry for a very long time, but this is not always true. If you are not careful, you may be cheated. Therefore, it is suggested that you should check the company’s records and find out how long they have been in business and whether or not they have a good reputation. The following are some of the methods to check if a factory has a good reputation. First, it is suggested to ask around about this factory by talking with other suppliers or customers who may know about them. Second, if possible, you should go to the factory and talk with its employees; their attitude towards you will show their reputation. Third, you can visit some of their customers and ask them what they think of the factory; their answers will also help your decision. Delivery AbilityThe next important thing to do when choosing a factory is checking their delivery ability. If a factory cannot deliver on time, it may render your project useless. Therefore, it is very important to check the factory’s delivery ability before making a purchase. The following are some ways in which you can check for delivery ability: First, you should ask for delivery guarantees from the supplier; Second, you should ask for some samples of products that they have delivered to other customers; Third, you should ask if they have any special shipping arrangements or not; Fourth, you should ask your supplier how long it usually takes them to deliver an order and what kind of transportation arrangement they use; Fifth, make sure that your supplier has an organized system for production and delivery so that your order will be delivered on time without any problems when you place an order with them. What are the considerations of choosing PCB SMT factory? Knowing the following will get you a very realistic SMT quote, plus SMT companies will know that you mean business. · For the SMT quote, tell the company whether you want them to supply all SMT components or whether you will supply them all or a part of them.· About the board type, it can be a single piece or panelized board.· An SMT company will ask you about the assembly sides for the board, will the SMT quote be for only the top side of the board, bottom side or both sides?· Quantities of PCBs of course.· The number of component types on each board Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/22/2023 15:12
What Are the Main Types of LED PCB Design?
For an LED PCB, you need to cater to two main aspects of the design. First, it is important to ensure that the LED sits within the circuit board’s drilled holes. Ensure that the holes are part of the design. Second, you need to focus on the distance between the holes. In this passage, we will tell you everything about LED PCB design and PCB manufacturing. If you are curious about LED PCB, please and check the read the content below.If you want to order PCB product, please check and custom your order online. What are the types of LED PCB? There are different types of LED PCBs. LED PCB Board types to vary on the basis of manufacturing specifications, type of material and usage. Here are the most popular types of LED PCBs including: Flexible LED PCBThe name is quite obvious. It is comprised of materials that can twist in different directions, and flex. It contains layers including multilayer, double and single formats. It is a little bit costly to print a circuit on the flexible material. The flexible LED PCB Board has more advantages as compared to a rigid LED Printed Circuit Board. Rigid LED PCBAs the name suggests, it is stiff and totally opposite to the flexible one. The solid material is used for its manufacturing. You can find it on the computer. It is also available in different layers. Multi-Layer LED PCBThis type of LED PCB Board contains more than two layers. Copper plated holes most often interconnect all the layers. It contains 4 to 50 conductive material layers. A special type of glue connects multiple layers and a special type of insulator is used in between different layers. The insulator protects them from an excessive amount of heat. What are the applications of LED PCB? PCB LED lights have excellent energy efficiency, low cost and maximum design flexibility, so it can incorporated into numerous lighting applications. ComputerLED displays and indicators are more and more popular in the computer applications. And aluminum PCB LEDs are an ideal solution because of the heat sensitivity of computer machinery. Expect for LED applications, aluminum PCBs are also used for the computer parts. MedicalLighting tools used in surgeries and medical examinations commonly use high-powered LED lights, and these LED lights often use aluminum PCBs, which is primarily because of the durability and heat transfer capabilities of aluminum PCB LEDs. Expect for lighting tools, medical scanning technology often uses aluminum PCBs as well. AutomotiveAluminum PCB LEDs also are used for cars on indicators, brake lights and in headlights, as well as other applications. There are some factors making the aluminum PCBs be ideal within the automotive industry, such as the durability and competitive prices. What is the process of LED PCB design? Design the PCB with computer-aided design software. The exact design will depend upon the application in mind. For the the PCB to support an LED, two aspects of the design are important. First, the LED will need to sit within holes drilled in the circuit board. You must include these holes in the design. Second, the holes will have to sit close to positive and negative terminals to power the LED. Save the design as a Gerber file. This is the industry standard for PCB manufacturers. The Gerber file should have a number of layers. Layer 0 should show the dimensions of the board outline. Layer 1 should have the pattern of copper wires. Layer 2 should have the design of the drilled holes. Create a text file containing information about the board dimensions and layer contents. Email the Gerber file and text file to a PCB manufacturer. Purchase an LED device with the correct specifications. Take particular note of the required voltage and ensure this matches the power supply for the PCB. Build the PCB. Mount the LED electrodes within the PCB and solder them to the positive and negative voltage terminals. Its important to connect the terminals the correct way around. Connect the power supply to the voltage rails. Turn on the power supply and set the correct voltage. The PCB should now be powered and the LED will light up. How to avoid the defects of LED PCB? The LED PCB assembly may suffer from gradual performance degradation, and it is challenging to identify its root cause. Your custom LED PCB may be subject to trace degradation, oxidation, incorrect copper weight, condensation, and solder flux corrosion. If you inconsistently apply solder paste, it can lead to short or open circuits in the LED PCB. If you use it in limited quantity, the solder joints will be more prone to rupture. If you haphazardly use it in excess, it may connect with the nearby connections and cause short circuits. In this case, you will burn not only the LED but also the sensitive nearby electrical components. You should make sure that the LED PCB does not get environmental contamination. Furthermore, you may also use electrical testing to find the location of the short and open circuits. Wanna know PCB knowledge? Check and read for more.
PCB Knowledge ⋅ 05/20/2023 14:17
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