Pcb manufacturer in China? The production of A-TECH complies with relevant laws and regulations. To ensure durability, our highly skilled QC professionals rigorously inspect the product. With many advantages, this product is highly reckoned in the market. We have high-quality pcb surface finish, including osp pcb, hasl pcb, immersion gold pcb, immersion silver pcb, peelable mask pcb, carbon pcb, immersion tin pcb and enig pcb. Peelable mask is one kind of temporary soldermask which use to protect some selected board areas during the surface finish or PCB assembly process to keep solder from flowing onto contacts, terminals or plated through holes. Discover more details at pcb manufacturer China.
As a primary testing technique in PCB assembly, AOI applies to fast and accurate inspection of errors or defects occurring in PCB assembly process, so that high quality of PCB assemblies can be ensured with no defect after their leaving assembly line. AOI is contributive to efficiency improvement because it is placed on SMT assembly line, just after reflow. As soon as some problems are inspected and reported by AOI equipment, engineers can instantly change corresponding parameters in the previous stages of the assembly line, so that remaining products will be correctly assembled. AOI can cover primarily come in soldering and components categories. In terms of soldering, AOI detect the defects ranged from open circuits, solder bridges, solder shorts, insufficient solder to excess solder. Component defects include lifted lead, missing components, misaligned or misplaced components.
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.
Heavy Copper Board does not have a set of definition per IPC. According to PCB industry, however, peopel generally use this name to identify a printed circuit board with copper conductors 3 oz/ft2 – 10 oz/ft2 in inner and/or outer layers. And Extreme heavy copper PCB refers to 20 oz/ft2 to 200 oz/ft2 printed circuit board. Heavy copper normally used for a various products but not limited to: high power distribution, heat dissipation, planar transformers, power convertors, and so on.
A-TECH CIRCUITS was founded in 2003, which was a UL(E357001), ISO9001:2015, ISO14001:2015, IATF16949:2016 and RoHS certificated (printed circuit boards) PCB manufacturer and PCB assembly manufacturer with 15 years’ experience, the headquarter and sales office was located in ShenZhen city of China, the manufacturing facilities was located in HuiZhou city where is about 150KM from ShenZhen city. See even more info at https://www.atechpcb.com/.