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A-TECH silver hard gold pcb Supply for wholesale

A-TECH silver hard gold pcb Supply 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
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Quantity Needed:
Pieces
E-mail:


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.




In the production of A-TECH hard gold pcb, raw ingredients and samples are tested or examined to ensure they meet the standards in the beauty makeup industry.
A-TECH hasl pcb finish is made by using the following techniques: laser metal cutting, CAD software, precision welding, CNC milling and drilling, and powder coat painting.
The design of A-TECH hard gold pcb is carried out around some fundamental considerations such as overall bag weight, overall shape and balance, type and configuration of zippers, etc.
A-TECH hasl pcb finish is reasonably and hygienically designed. To ensure a clean food dehydration process, the parts are properly cleaned before assembly, while the crevices or dead areas are designed with dismantled function for thoroughly cleaning.
The purifying system of A-TECH hard gold pcb has been built using standardized 'building block' methods, allowing for quick delivery and installation.
The stability and safety of the product are outstanding.
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