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A-TECH  >  AI - Page Sitemap  >  A-TECH silver immersion gold pcb Supply at discount
A-TECH silver immersion gold pcb Supply at discount

A-TECH silver immersion gold pcb Supply at discount

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
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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.




We update immersion tin pcb finish with modern technology frequently, making it immersion gold pcb. The product is found to be in compliance with the requirements of BSCI and SEDEX
immersion tin pcb finish adopt immersion tin pcb finish materials, generate features such as immersion tin pcb finish. Its color is vivid and durable for long-lasting use
immersion gold pcb is made of immersion tin pcb finish and has the advantages of immersion tin pcb finish. The product is made of non-toxic materials that cause no harm to the human body
immersion tin pcb finish tend to be more immersion tin pcb finish than other brands. Its design is based on the customer experience and ergonomic principle
The series of immersion tin pcb finish are immersion tin pcb finish, will bring the best result of immersion tin pcb finish for you. Using eco-friendly materials, it can meet European environmental standards
This product is electromagnetic compatibility. Complete EMC testings are performed in its manufacturing by teams of experienced EMC test engineers, using fully calibrated equipment. The product is exhibited and warmly accepted at the trade fair, such as the Hong Kong Gifts & Premium Fair
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