PCB supplier china What is the HASL Process
This PCB surface finish involves dipping the printed circuit board into a pot of molten solder after applying a solder mask. After this, the PCB supplier china removes the excess solder through hot air leveler. This step involves using hot-air knives.
The thin solder layer offers protection against corrosion. Also, the finish enhances the soldering of components to the printed circuit board during PCBA. HASL can be lead-based or lead-free. Also, the lead-free HASL and lead-based HASL are identical in terms of appearance and usage. However, lead-free HASL comprises the combination of 99.3% tin and 0.6% copper.
.jpg)
This mixture features a higher melting point for lead-free HASL. Therefore, this increases the need for a slight change to the reflow soldering operation in PCBA solution. Also, the flux used in HASL is a special one. This PCB surface finish has to activate the exposed copper surface of the PCB to enhance the solder on the surface.
The solder applied to hot air leveling must have a uniform thickness. Also, the air knife helps to level the solder. However, the impact of the air knife on the solder leveling changes.
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
- SMT for FPC
- What is FPC inspection
- Why Metal core PCBnecessary for PCB circuit boards?
- FINGU
- What are the advantages of automotive PCB application for automotive industry
- FPC supplier tells you What is Punching FPC board holes
- PCB factory china tells you What types of tests are performed during electrical testing
- PCB factory china：Fabicating and manufaturing PCB board design and layout
- PCB factory china:Can biosensors replace blood sampling?
- Solder Joint Quality Inspection in SMT Health care PCB Assembly
A total of -comments【I want to comment】