Tom huang’s Post

Question about manufacturing high-CTI boards with solder mask, seeking understanding and help. Factors of CTI rating and material properties.#high-CTIPCB #PCBfabrication #soldermask

The reflow oven makes the solder paste heated and melted to flow and infiltrate again, so that the surface mount components and the solder pads are combined through the solder paste. The transfer system passes the circuit board through the high temperature area of the reflow oven. The solder paste goes through dried, preheated, melted, moistened, and cooled to solder the components onto the circuit board. Our equipment is a double-track 12 -temperature zone nitrogen reflow oven with a temperature control accuracy of ± 1.5°C. The guide rails can be electrically adjusted in width and can place 50-490mm width board. and uses nitrogen instead of oxygen as the protective gas to create a low-oxidation environment, thereby improving welding quality and reliability. If you need a PCB quotation, you can contact FAST TURN PCB. Your Reliable One-Stop Shop for All PCB&PCBA Requirements One-stop PCB manufacturing Website: www.fastturnpcbs.com Email: sales@fastturnpcbs.com #multilayerpcb #pcbmanufacturing #pcbassembly #Pcbparts #Highfrequencypcb #PCB #pcba #pcbuilder #PCBWayFactory #SMT #pcbmanufacturer #advancedpcb #Fastturnpcb #pcbsmt #onestopsolution #turnkeysolution #BOMProcurement

Did you know that not properly cleaning PCBA stencils can lead to significant quality issues? Here are some eye-opening facts: - Solder Bridges: Up to 60% of defects in PCBAs are related to solder paste, with many being solder bridges! - Misaligned Components: Around 30% of assembly problems are due to misaligned components caused by uneven solder paste. - Pinholes and Adhesion Problems: These defects can lead to intermittent failures, with up to 15% of premature failures related to them. - Stencil Lifespan: Lack of cleaning can reduce the stencil's lifespan by 20-30%, increasing operational costs. Keep your stencils clean and ensure product quality! Connect with us to learn more and request a sample. 📩 Reach out to us today at sales@qtek.com #QTEK #CleaningSolutions #ProductivityBoost #InnovationInCleanliness #EfficiencyUnleashed #PCBA #Quality #Manufacturing #Engineering #Technology #Production

Solder Mask Expansion Solder mask expansion is the deliberate increase of the solder mask opening around a PCB pad to ensure the entire pad is exposed for soldering, compensating for potential misalignment during manufacturing. This technique is essential for creating non-solder mask defined (NSMD) pads, which offer better solder joint reliability. A typical recommendation is a minimum solder mask expansion of 3 mils on all sides to account for up to 2 mils of misregistration. Proper solder mask expansion prevents assembly defects by ensuring sufficient soldering surface and maintaining the necessary solder dam width between adjacent pads.

📢 Conformal coating is a material that is applied to #electronic products or #assemblies to protect them from solvents, moisture, dust or other contaminants that may cause harm. Coating also prevents dendrite growth, which may result in product failure. Fastlink Circuits #ConformalCoating #PCBProtection #fastlinkpcb #pcb #pcba #ElectronicsCoating #CircuitBoard #Manufacturing #Technology #Innovation #Engineering #IndustryStandards #ElectronicsEngineering #ProductDevelopment 

In circuit board manufacturing, we begin by preparing glass fiber epoxy material and covering both sides with copper plates. After cutting, applying a dry film, and exposing it to UV light, the circuit design is revealed. Etching and developing processes leave behind the copper traces. For complex designs, multiple layers are stacked and copper-plated. Next comes the key PCBA process: solder paste is applied to pads, and automated machines precisely install small electronic components. The circuit board is then heated to solidify the solder and securely attach components. After both automated and manual component installation, the board undergoes testing before final delivery to the customer. #PCBA #CircuitBoardManufacturing #ComponentInsertion #Automation #SolderPaste #ElectronicComponents #ElectronicsManufacturing

The 𝐡𝐨𝐭 𝐦𝐞𝐥𝐭 𝐚𝐝𝐡𝐞𝐬𝐢𝐯𝐞 𝐬𝐨𝐥𝐞𝐧𝐨𝐢𝐝 𝐯𝐚𝐥𝐯𝐞 plays a vital role in DESEN electronics production equipment. Ensuring its proper maintenance is essential for stable production. 💡 𝐇𝐞𝐫𝐞 𝐚𝐫𝐞 𝐬𝐨𝐦𝐞 𝐤𝐞𝐲 𝐩𝐨𝐢𝐧𝐭𝐬 𝐭𝐨 𝐫𝐞𝐦𝐞𝐦𝐛𝐞𝐫 𝐰𝐡𝐞𝐧 𝐮𝐬𝐢𝐧𝐠 𝐡𝐨𝐭 𝐦𝐞𝐥𝐭 𝐚𝐝𝐡𝐞𝐬𝐢𝐯𝐞: ✔ Maintain the heating temperature between 110-120 degrees Celsius to prevent the adhesive barrel from softening and deforming. ✔ When disassembling and cleaning the spray valve, don't wait for the flow channel temperature to decrease. Clean it immediately after disassembly to avoid dealing with hardened adhesive. ✔ During continuous high-frequency dispensing, activate air cooling for the valve body to prevent its temperature from exceeding 50 degrees Celsius, which could damage the solenoid valve. ✔ Keep the air pressure below 0.3mbar to prevent the adhesive barrel from bursting due to pressure overload, which could lead to splattering and burns. ✔ If the machine remains unused for over 12 hours, it's advisable to thoroughly clean the spray valve or fill it with paraffin wax. DESEN provides a wide array of standard and customized products. Its 𝐟𝐮𝐥𝐥𝐲 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐜 𝐡𝐢𝐠𝐡-𝐬𝐩𝐞𝐞𝐝 𝐝𝐢𝐬𝐩𝐞𝐧𝐬𝐨𝐫𝐬 come with advanced configurations, catering to various hot melt adhesive applications such as encapsulation, potting, and precision coating. #DESEN #SMT #SMTprinters #SMTmachines #coatingmachines #dispensor #Seminar #ElectronicManufacturing #Innovation #technology #pasteprinters #stencilprinters #visionprinters #electronicequipment #pcbdesign #electronic #soldering #technical #hardwaredeveloper #prototypes #stm #pcba #solderpasteprinter #PCBAssembly #SMTPrinting #electronicsmanufacturing #surfacemounttechnology #manufacturingtechnology #automatedprinting #SMTProduction #selectivecoating

The reflow oven makes the solder paste heated and melted to flow and infiltrate again, so that the surface mount components and the solder pads are combined through the solder paste. The transfer system passes the circuit board through the high temperature area of the reflow oven. The solder paste goes through dried, preheated, melted, moistened, and cooled to solder the components onto the circuit board. Our equipment is a double-track 12 -temperature zone nitrogen reflow oven with a temperature control accuracy of ± 1.5°C. The guide rails can be electrically adjusted in width and can place 50-490mm width board. and uses nitrogen instead of oxygen as the protective gas to create a low-oxidation environment, thereby improving welding quality and reliability. If you need a PCB quotation, you can contact FAST TURN PCB. Your Reliable One-Stop Shop for All PCB&PCBA Requirements One-stop PCB manufacturing Website: www.fastturnpcbs.com Email: sales@fastturnpcbs.com #multilayerpcb #pcbmanufacturing #pcbassembly #Pcbparts #Highfrequencypcb #PCB #pcba #pcbuilder #PCBWayFactory #SMT #pcbmanufacturer #advancedpcb #Fastturnpcb #pcbsmt #onestopsolution #turnkeysolution #BOMProcurement

In-depth discussion of the role of conformal paint used in PCBA processing, and a detailed introduction to its importance in protecting circuit boards from water, dust and corrosion. 1. Protect the circuit board from water Water resistance is a crucial consideration in the manufacturing process of electronic products. Since the circuit board contains many precision electronic components, the penetration of moisture will cause short circuits, insulation failure and other problems on the circuit board, which will seriously affect the normal operation of the product. The conformal anti-paint used in PCBA processing was introduced to solve this problem. The conformal anti-paint has good waterproof performance and can effectively isolate the erosion of external moisture and protect the circuit board from the threat of moisture. 2. Protect circuit boards from dust In addition to waterproofing, dustproofing is also an important aspect to consider during PCBA processing. The tiny size and high sensitivity of electronic components make them extremely susceptible to contamination by dust and impurities. These contaminants can affect the normal operation of the circuit board and even cause circuit short circuits. Therefore, the use of conformal paint during PCBA processing can effectively isolate the circuit board from dust and protect the normal operation of electronic components. 3. Protect circuit boards from corrosion In addition to being waterproof and dustproof, the conformal paint used in PCBA processing also has anti-corrosion functions. During the manufacturing and use of electronic products, circuit boards are easily susceptible to corrosion and failure due to the presence of oxygen, moisture, chemicals and other factors. The use of conformal paint can provide a protective film for circuit boards, effectively isolate external corrosion factors and extend the service life of electronic products. In summary, the use of conformal paint in PCBA processing plays an irreplaceable and important role in protecting circuit boards from water, dust and corrosion. By using conformal coating, it can not only enhance the water, dust and corrosion resistance of electronic products and extend their service life, but also improve the reliability and stability of the product. Therefore, in the PCBA processing process, the rational use of conformal paint is a necessary means to ensure the quality and performance of electronic products. #PCB #SolderPaste #PCBAssembly #PCBA #CircuitBoard #manufacturer #pcbassembly #pcbmanufacturer #ComponentSourcing #PCBFabrication #PCBAassembly #EMSturnkeyservice #BMSPCBA #highqualityPCBA #eletronicsproduction #SMTproduction

The ultimate guide to PCB coating 💡 Ready to gain invaluable insights, stay informed and make the best decisions for your PCB assembly needs? In this guide, we explain the significance of various coatings and their roles in enhancing durability against moisture, dust and extreme temperatures 🌡️ Discover how coatings offer superior protection and suit different environmental demands. Ideal for those seeking robust solutions in electronics manufacturing. Read the guide here 👉 https://lnkd.in/eWASqjh2  #PCBCoating #MPEElectronics #InnovationInElectronics