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A-TECH carbon immersion silver pcb finish bulk production at discount

A-TECH carbon immersion silver pcb finish bulk production at discount

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.




Pictures on our immersion silver pcb finish can be customized to meet customer's requirements. We have a top R&D team to keep improving quality and design for our decking tiles
At A-TECH CIRCUITS Co., Ltd., we offer the following high quality material formulations, including lead free hasl pcb. You even don't need any adhesive or cement during the process of splicing our decking tiles
High quality materials A-TECH CIRCUITS Co., Ltd. adopted make immersion silver pcb finish pretty durable. Jiabang’s products can be widely used in garden, balcony, patios and other exterior or interior places
The adoption of advanced technology gives A-TECH lead free hasl pcb a good surface finish. All our decking tiles have conducted strict tests
A-TECH immersion silver pcb finish is designed with an innovative concept. Foshan Jiabang Garden Supplies Co., Ltd set up in 2004
We continuously monitor and adjust the production process to ensure that the product quality meets the policy requirements of customers and the company. There are over 13 series and 200 items available for our decking tiles
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