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A-TECH bulk buy China peelable solder mask pcb Supply for wholesale

A-TECH bulk buy China peelable solder mask pcb Supply for wholesale

Thickness
1-40um
Shelf Life
12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
No
Supply Capacity
20000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
Get Latest Price
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Quantity Needed:
Pieces
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HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.



The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used



The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes



A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.




The production of peelable solder mask pcb always takes peelable solder mask pcb into account. With a compact integrated design, it is easy for transportation
peelable solder mask pcb adopts peelable solder mask pcb materials, generate features such as peelable solder mask pcb. Adopting an intelligent constant current driver, it has no flicker problem
Our peelable solder mask pcb have a wide range of material category, taking different processes. It is able to work under humidity ranging from 10% to 90
The special composition of peelable solder mask pcb makes it obtain good performances like peelable solder mask pcb. Going through salt spray test up to hundreds of hours, it is highly resistant to corrosion
peelable solder mask pcb produced by A-TECH CIRCUITS Co., Ltd. are mainly characterized by their peelable solder mask pcb. The unique design of low current reduces the line loss
It has undergone significant enhancements in capabilities. The product is quick in turning on and off
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