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A-TECH carbon pcb mask cheapest factory price for wholesale

A-TECH carbon pcb mask cheapest factory price for wholesale

Thickness
1-40um
Shelf Life
12 Months
Solderability
Excellent
RoHS Compliant
No
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
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Company Advantages
1. Different from common material, material for pcb mask gains the absolute advantage in characteristics of silver coating pcb . It can be printed with numbers, names, data codes, logos, or other specific information
2. A-TECH CIRCUITS Co., Ltd. has trained, experienced, and dedicated specialists serving its customers. The product can be resistant to corrosion
3. The product is examined on set industry standards to make sure that it is free from flaws. The inner layer core of the product is chemically treated for improved adhesion of the copper surface
4. Our staff implements 100% inspection to make sure the product is in good conditions and of high quality. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
5. The environmental friendly laboratory ensures that the product is flawless before leaving the factory. It stands out for its impact endurance performance


HASL, the full name is Hot Air Solder Leveling, it’s one of the traditional surface finish on printed circuit boards with long successful history.

To make the HASL finish, the circuit boards will be submersed in molten solder(Tin/Lead). 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.

HASL (Tin/Lead) surface finish is not RoHS Compliant, so it can be only available where RoHS exemption is permitted. The typical thickness of HASL is 1-40um, and the shelf life can reach to 12 months.



The advantages of HASL surface finish

● Excellent solderability / wettability
● Good reflow properties
● Low cost in manufacturing
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used



The disadvantages of HASL surface finish

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



A-TECH have HASL surface finish in house, it’s mainly used to build single sided or double sided PCBs with high solderability requirements but low manufacturing cost and without RoHS Compliant requirement.




Company Features
1. Located in an important city where substantial economy develops rapidly and various transportation means are accessible, the factory has both position and transportation advantages. These advantages offer economic benefits to both the factory and customers.
2. Tell us your requirements, and A-TECH gives you the most professional solution. Get quote!
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