Three reasons for manufacturer is difficult to tin the High frequency PCB
Three reasons for manufacturer is difficult to tin the High frequency PCB
The first reason is: the problem of flux.
1. Insufficient activity to completely remove oxides on PCB pads or SMD soldering positions
2. The amount of solder paste in the solder joints is not enough, and the wetting performance of the flux in the solder paste is not good
3. The tin on some solder joints is not full, and the flux and tin powder may not be fully mixed before use;
.jpg)
The second reason is: the problem of the board factory. The oily substance on the pad has not been removed, and the pad surface has not been oxidized before leaving the factory
The third reason is: the problem of reflow soldering. Too long preheating time or too high preheating temperature causes the flux activity to fail; the temperature is too low, or the speed is too fast, and the tin does not melt.
Other news about S&L
- Scan to Discover Your Past Life? See How PCB Factories Use Traceability Systems to Create a Quality
- Joining Hands with AI to Forge the New Future of Smart Manufacturing at Sun&Lynn Circuits
- Sun&Lynn Circuits CO., Ltd. was invited to attend the Sixth Global Customs AEO Conference!
- Celebrating the Establishment of SUNLYNN CIRCUITS(THAILAND)
- Good News! Sun&Lynn Circuits Co.,Ltd. is honored as one of the Top 100 Innovative Enterprises in Bao
- What Should You Know about Metal Core PCB？
- FPC supplier ： the types of Flexible PCB
- PCB manufacturer China：Why PCB board snake line, what is it used for？
- What is Metal Core PCB and types of Metal Core PCB？
- Why are High frequency PCBs much more expensive than normal PCBs?
Your browsing history
- How to solve the problem of chip components standing up during Multi-layer PCB SMT assembly
- Health care PCB：HOW HDI MICROVIAS ARE USED IN PRODUCT DESIGN
- PCB supplier china：High Temperature PCB for High-Heat Applications
- NORCO
- Factors affecting high frequency PCB
- Flexible PCB supplier China ：What are the four common types of FPC?
- PCBsupplierchina：Global Rigid-Flex PCB Market to Reach $2.3 Billion by 2028！
- PCBfactorychina:Huawei is to roll out 5.5G equipment！
- Let us tell you the Multilayer PCB Benefits
- What is a Health care PCB?
A total of -comments【I want to comment】