Flex PCB, Flex-Rigid PCB, Hybird PCB for Automotive and Medical Devices

We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Smart Home Pcb Design And Assembly, Smt PCB Assembly Service, PCB Quick-Turn Prototype LED Panel. 'Challenge the limit, keep improving' is the work style advocated by our enterprise. We already have an excellent reputation and influence in the industry after years of hard work and development. We improve skills, promote productivity, reduce drudgery and improve the quality of life of our employees. Process reengineering is a thought innovation of our company, which provides a new thinking for our production organization and management.

Factors contributing to poor PCBA solder resist film

Solder resist film is a very important coating material in the PCBA packaging process. It can provide dielectric and mechanical shielding for PCBA boards during and after the soldering process and prevent solder from being deposited in this location. Generally in the processing of electronic processing plants commonly used in the solder film are liquid film and dry film two kinds of materials.

In PCBA processing and SMT solder resist ink is very important, its main function is to protect the circuit board, to prevent conductor wetting, to prevent the impact of moisture and humidity caused by a short circuit, to prevent substandard processing, because the contact caused by open circuit, and so on, is the PCBA board can be used in a harsh environment to ensure normal use. The following is a brief introduction to PCBA packaging processing in the poor design of welding film:

1, pad through-hole line. In principle, should be connected to the pad of the through-hole between the wire resistance welding.

2. The design of resistance welding between the pad and the pad, as well as the graphic specification of resistance welding should be in line with the design of the distribution of the weld end of the specific components: If the pad and the pad between the open window resistance welding, the short circuit between the pad and the pad will not occur between the pads.

3, the components of the resistance welding diagram size is not appropriate, resistance welding diagram design is too large, will "shield" each other and lead to open welding, so that the distance between components is too small.

4. no resistance welding film under the component hole, no resistance welding hole under the component. After wave soldering, the solder on the hole may affect the reliability of IC soldering and may also cause defects such as component short circuit.

The above is the PCBA resist soldering film to produce bad factors, I hope the above tips can help you!

Within the application scope of our Flex PCB, Flex-Rigid PCB, Hybird PCB for Automotive and Medical Devices, we can provide technical services at any time. Our company always keep a healthy attitude, work actively, and keep the enterprising spirit. Our company constantly introduces advanced products and technologies, accumulates abundant talents and technical resources and develops the core technology of the enterprise and cultivates the core competence.