Summary of common problems in PCB dry area (circuits, solder mask, text) (2) 11. Why does the exposure machine need to vacuum when it is exposed? 12. What are the advantages of using volcanic ash grinding board for pretreatment? Disadvantages? .......
Summary of common problems in PCB dry area (circuit, solder mask, text) (3) 21. What is the cause of excessive solder mask development? 22. Why do solder masks develop boards with green oil bridges facing...
One aspect of the cause of circuit board warpage is that the used substrate (copper clad laminate) may warp, but in the process of printed circuit board processing, due to thermal stress, chemical factors, and production processes...
Why does the phenomenon that individual vias are blocked after the circuit board is mounted? This may be a problem that many circuit board companies will have. Let me analyze the specific reasons for everyone. …
Some opinions on the poor tin on the tin surface of the circuit board-Honglian Circuit Technology Department 1. The quality defect of the tin surface of the circuit board factory 2. The quality problem during the soldering of the chip factory
[Shenzhen Honglian Circuit] has more than 10 years of experience in double-sided and high-multilayer precision circuit boards. Our slogan is "I do, now!!", Honglian Circuits-Professional PCB manufacturer, PCB manufacturer, Bing...
Honglian Circuit will interpret the three main points of PCB circuit board design for you! For PCB design novices, there are some design points that need special attention. If you don’t pay attention, the designed PCB will most likely not be able to cast...
Honglian Circuit Technology Department (He Jialiang) has summarized some opinions about poor tin on the tin surface of the circuit board. You can refer to it and hope to help you. The main factors that cause poor PCB soldering are from the circuit board...