Pcb supplier today? We are engaged in the production, processing and sales of PCB manufacturing. A-TECH focuses on providing a variety of PCB manufacturing for customers, offering blind vias pcb, via in pad pcb, countersink pcb, edge plating pcb, thick copper pcb and impedance control pcb. A-TECH has the ability to meet different needs. PCB manufacturing is available in multiple types and specifications. The quality is reliable and the price is reasonable. Since the establishment, A-TECH has always been adhering to the service concept to serve every customer wholeheartedly. We receive acclaim from customers by providing thoughtful and caring services. Discover even more details on pcb manufacturer.
The main difference between a FR4 board and MCPCB is the thermal conductivity dielectric material in the MCPCB. This acts as a thermal bridge between the IC components and metal backing plate. Heat is conducted from the package through the metal core to an additional heat sink. On the FR4 board the heat remains stagnant if not transferred by a topical heatsink. According to lab testing a MCPCB with a 1W LED remained near an ambient of 25C, while the same 1W LED on a FR4 board reached 12C over ambient. LED PCB always be produced with Aluminum core, but sometimes steel core PCB also be used.
The PCB assembly process is a combination of the SMT(Surface Mounting Technology) process and the DIP(Dual In-line Package) process. According to the requirements of different production technologies, it can be divided into a single-sided SMT placement process, a single-sided DIP insertion process, a single-sided mixed process, single-sided placement and insertion Mixed process, double-sided SMT mounting process and double-sided mixed process, etc. The PCBA process involves board cutting, printing, patching, reflow soldering, plug-in, wave soldering, testing and quality inspection.
We realize that there is a lot of competition in the printed circuit board industry, but we’re confident that our promise of high quality, competitive pricing and quick turn around times put us ahead of the curve, not only will we show you that we’re worthy of your business and trust, but we will show you why our customers always come back. We are trying to be the best pcb manufacturer in China, providing high-quality and low-cost pcb assembly and pcb service. See extra details on atechpcb.com.
Tg means Glass Transition Temperature. As flammability of printed circuit board (PCB) is V-0 (UL 94-V0), so if the temperature exceeds designated Tg value, the board will changed from glassy state to rubbery state and then the function of PCB will be affected. If working temperature of your product is higher than normal (130-140C), then have to use High Tg PCB material which is > 170C. and popular PCB high value are 170C, 175C, and 180C. Normally the FR4 circuit board Tg value should be at least 10-20C higher than working temperature of product. If you 130TG board, working temperature will be lower than 110C; if use 170 high TG board, then maximum working temperature should be lower than 150C.