A-TECH  >  AI - Page Sitemap  >  A-TECH China immersion gold pcb bulk production at discount
A-TECH China immersion gold pcb bulk production at discount

A-TECH China immersion gold pcb bulk production at discount

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
Get Latest Price
Get the latest price
Quantity Needed:
Pieces
E-mail:


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.




A-TECH immersion silver pcb finish must go through these following production stages, including metal materials procurement and preparation, components machining, surface polishing, and assembly.
A-TECH immersion silver pcb finish has been tested according to the general standards. It is tested in terms of functionality, strength, stiffness, wears, and corrosion. The product, with strong adhesive holding power, can withstand heavyweight
A list of factors is taken into account of A-TECH immersion silver pcb finish conception. They involve complexity, feasibility, optimization, tests, etc. of a machine. There is no residual glue after stripped off
Lots of factors are taken into consideration in A-TECH immersion gold pcb design. They are required motion, required space, speed of operation, required labor, etc. It has passed the tensile strength test and tape retentivity test
There are many factors being considered during A-TECH immersion gold pcb design. They include the selection of material, form and size of the parts, frictional resistance and lubrication, and safety of the operator. The product does not peel off even used in a humid environment
It has the proper size in consideration of the force. Each element of this product is designed with the most suitable size by considering the force acting on it and the permissible stresses for the material used. It has been widely exported to Taiwan, the USA, Europe, Southeast Asia, and the Middle East
Product Message
Chat Online 编辑模式下无法使用
Chat Online inputting...
Please hold on and we will get back to you soon