solder pcb gold plating free delivery at discount A-TECH

Company Advantages
1. pcb gold plating design determines the final form of pcb surface finish from A-TECH CIRCUITS Co., Ltd..
2. The product is resistant to ozone. It is not easy to occur drying, cracking, flaking, hardening and scaling when exposed to ozone.
3. Without high quality, pcb surface finish can't be well accepted by customers for years.
4. A-TECH CIRCUITS Co., Ltd. has increased pcb surface finish product competitiveness while reducing costs.

Carbon Ink is typically used to create a protective contact surface for switches, sometimes few copper elements or patterns of the PCB board are used for keyboard contacts, LCD contacts and jumpers etc, to do this it’s usable to print some conductive/resistive carbon ink over those copper part, which normally are SMD pads or fingers or other typical contact patterns.

Carbon Ink printing process is screen printing like silk screen process, the carbon ink is printed in the specified location of the PCB, after oven cured and tested, formed a carbon film which with certain resistance to instead of the original resistance components. The difference is that silkscreen is only played a welding role but carbon ink has conductive performance.

The typical thickness of carbon ink is 10-50um, because the carbon ink has good electrical conductivity, so the carbon printed on the finished PCB should have a certain gap to ensure that no short circuits, usually require the min 8mil gap for Hoz copper and min 12mil gap for 1-3oz copper, and the minimum carbon line width is 12mil.

A-TECH is a capable PCB manufacturer to offer Carbon ink process, we require the data files to clearly indicate on which side of the PCB carbon is to be applied and the carbon areas must be properly indicated on specific layers with proper file naming.

Company Features
1. A-TECH CIRCUITS Co., Ltd. has pioneered in the development and production of advanced, state of the art pcb surface finish .
2. We continue to invest heavily in new technology and facilities. The existed wide range of production equipment provides us with the flexibility necessary to supply the most specialized products conceivable.
3. We always insist on service tenet of immersion silver pcb . Call! Our dream is to satisfy our customers who buy our immersion tin pcb . Call! Our aim is to be one of most advanced companies in carbon pcb industry in the world. Call!