Tin-lead hot air leveling for Rigid flex PCB
Application occasions: The current application is limited to products exempted from the RoHS directive and military products.
Cost: Medium.
Compatibility with lead-free: not compatible, but can be used for surface treatment of communication products single board.
Storage period: 12 months.
Solderability (wettability): high.
.jpg)
Disadvantages:
* Not suitable for devices with pin center distance <0.5mm, because bridging is prone to occur.
* Not suitable for places with high coplanarity requirements, such as BGAs with medium and high pin counts. Because the thickness of the plating layer of the HASL process varies greatly, the coplanarity of the pad and the pad is poor.
* Due to the relatively large thickness of the plating layer, the hole diameter (DHS) must be compensated to obtain the desired finished metalized hole diameter (FHS), typically FHS=DHS-4~6mil.
Supplier resources: Medium, but with the decrease of customers using leaded processes, Rigid flex PCB are gradually reducing HASL production lines, and resources will become less and less.
Other news about S&L
- 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?
- Flexible PCB supplier China ：When to use flexible PCB?
- Flexible PCB manufacturer：What Is Flex Soldering?
- What Is Automotive PCB？ Why we use automotive PCB?
Your browsing history
- PCB manufacturer China：What’s Solder Mask in PCB manufacturing
- Advantages of high-frequency PCB
- Great 2023, to 2024 | look back on the S&L PCB manufacturer China this year
- PCB manufacturer china celebrations the 1st operation day of 2018
- Flexible PCB supplier china explains the Different Types of Flex Pcbs Flex
- How rigid flex pcb manufacturers enhance pcb performance
- What Should You Know about Metal Core PCB？
- Flexible PCB supplier china：How To Etch A PCB Board
- What Are The Features Of Metal Core PCB?
- Sun&Lynn Circuits PCB supplier china Industry 4.0 in electronics manufacturing
A total of -comments【I want to comment】