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A-TECH immersion hasl pcb finish Supply for wholesale

A-TECH immersion hasl pcb finish Supply for wholesale

Thickness
≥1.0um
Shelf Life
6 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
Yes
Supply Capacity
5000 ㎡/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
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Immersion Tin, or Chemical Tin, it’s a RoHS Compliant metallic finish deposited by a chemical displacement reaction that is applied directly over the basis metal of the circuit board, the immersion Tin protects the underlying copper from oxidation over it’s intended shelf life, copper and tin however have a strong affinity for one another, the diffusion of one metal into the other will occur inevitably, directly impacting the shelf life of the deposit and the performance of the finish. The negative effects of tin whiskers growth are well described in industry related literature and topics of several published papers.

The typical thickness of Immersion Tin is ≥1.0UM and the shelf life is 6 months. The cost of Immersion Tin is more expensive than HASL but less expensive than Immersion Gold PCB and close to Immersion Silver. Similar to Immersion Silver, Immersion Tin is also sensitive in handling and storage, it requires PCB manufacturers to control and pack PCBs with Imm Tin more carefully.



The advantages of Immersion Tin

● Excellent flatness
● Mid range cost for lead free finish
● Good for fine pitch / BGA / smaller components
● Top choice for press fit technology
● Reworkable



The disadvantages of Immersion Tin

● Very sensitive to handling – gloves must be used
● Exposed Tin on final assembly can corrode
● Not good for multiple reflow/assembly processes
● Aggressive to soldermask – soldermask dam should be more than 5mil
● Baking prior to use can have a negative effect



A-TECH is capable of using Immersion Tin, we make the profile and electrical test before the process of Immersion Tin finish, and we use papers to separate each piece of boards to avoid scratches during package and transportation.




There are many important considerations in the design of A-TECH hasl pcb finish. They are the type of load and stresses caused by the load, motion of parts, form and size of the parts, etc. There is no residual glue after stripped off
A-TECH hasl pcb finish is manufactured adopting advanced machines. These machines mainly include punching machine, bending machine, stamping machine, milling machine, cutting machine, etc. There is no residual glue after stripped off
A-TECH silver coating pcb is manufactured to high standards. It is manufactured according to international standards such as MIL-STD 810F, IP Protection, UL, CE, FM, and ATX. With strong acrylic adhesive, the product is distinguished by excellent holding force
A-TECH hasl pcb finish is scientifically designed. Correct mechanical, hydraulic, thermodynamic and other principles are applied while designing its elements and the whole machine. The product is often used in the automotive painting, circuit board (PCB) processing, and mending and bunding
The creation of A-TECH silver coating pcb involves some advanced technologies. They include mechanical systems technology, automatic control technology, sensing technology, and servo-drive technology. It has good temperature resistance performance
The product is notable for high energy efficiency. When it operates, it can utilize little energy as possible without any waste. It is not likely to tear paint off the base materials
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