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A-TECH high quality pcb mask for business at discount

A-TECH high quality pcb mask for business 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.




A range of quality inspection for A-TECH enig pcb finish is carried out by the QC team. It is inspected in terms of sewing quality (stitch, reinforced weak joints, and thread), fabric strength, and so on. The product can show original printing color more clearly
There are sufficient considerations regarding A-TECH pcb mask design. They are Aesthetics (the meaning of form), Principles of Design (unity, harmony, hierarchy, spatial order, etc.), and Function & Social Use (ergonomics, comfort, proxemics). The product is of low cost but of great performance for users
Defects exclusion work for A-TECH pcb mask will be carried out. The product will be inspected in terms of shades, holes, defective stitches, stains, and loose threads and yarns. The product has a series of different types of patterns for customers to choose
A-TECH pcb mask has passed various physical tests required for the footwear materials. These tests include abrasion resistance testing, adhesion testing, colorfastness testing, hardness & thickness testing and flex and fatigue resistance testing. The product is flexible for easy applying
A-TECH pcb mask is manufactured strictly according to the standards for the testing of furniture. It has been tested for VOC, flame retardant, aging resistance, and chemical flammability. The product makes other items more durable and beautiful
This product has the desired durability. The stitching is tight, the seam is flat enough, and the fabric used is sturdy enough. The product is flexible for easy applying
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