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A-TECH  >  AI - Page Sitemap  >  A-TECH air pcb mask free delivery for wholesale
A-TECH air pcb mask free delivery for wholesale

A-TECH air pcb mask free delivery 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
Get the latest price
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.




A-TECH CIRCUITS Co., Ltd. Insist on excellence, not only manufacture hard gold pcb in strict accordance with industry standards, but also strive to do the best in every detail, so that the produced hard gold pcb can meet strict quality standards.
A-TECH CIRCUITS Co., Ltd. has a quality inspection team composed of professionals who specialize in testing the quality and quality of pcb mask to ensure that pcb mask is of high quality and excellent quality.
Our hard gold pcb uses exquisite materials, fine workmanship, reasonable design, and stable quality. It is a trustworthy high-quality product, please rest assured to purchase.
A-TECH CIRCUITS Co., Ltd. has a modern production workshop and advanced pcb mask production equipment, and has established a strict quality management system, and quality inspection personnel will conduct inspections in every link of pcb mask production to ensure pcb mask good quality and high quality excellent.
We not only have an independent production workshop, advanced production equipment, professional production personnel and multiple automated production lines, but also have established a set of scientific and rigorous quality control system to ensure that the hard gold pcb produced are of high quality.
pcb mask is energy saving and pcb mask. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support
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