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A-TECH China pcb mask Suppliers for wholesale

A-TECH China pcb mask Suppliers for wholesale

Shelf Life
12 Months
RoHS Compliant
Additional Cost
Supply Capacity
20000 ㎡/Month
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Get Latest Price
Get the latest price
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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.

Supported by trained personnel, A-TECH immersion tin pcb finish is finely produced according to the standard of fine production. The extreme smooth fabrics provide maximum comfort and softness
A-TECH pcb mask adopts the novel design in order to follow the ever-changing market trends. It can be customized with logos using embroidery or hot transfer printing methods
A-TECH pcb mask is designed with a distinctive style. The sweat-absorbing performance helps lift sweat away from the body for a more enjoyable workout
The innovative design of A-TECH immersion tin pcb finish leaves a lasting impression on the customers. Ladies love to wear it to do yoga, jogging, or other exercises
The production of A-TECH immersion tin pcb finish is strictly controlled and inspected before going into the next stage. It is not susceptible to get pilling
Its quality meets the requirements of high quality standards and is certified. It is not susceptible to get pilling
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