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high quality immersion silver pcb air free delivery for wholesale

high quality immersion silver pcb air free delivery for wholesale
  • high quality immersion silver pcb air free delivery for wholesale

high quality immersion silver pcb air free delivery for wholesale

A-TECH immersion silver pcb is produced under the support of high techs. They are energy-saving technology, operate and control system, and fabrication technique of mechanical parts. It has reliable colorfastness when exposed to light
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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.




A-TECH immersion silver pcb goes through a complete design process. The process mainly includes a purpose statement, consideration of mechanisms&transmitted forces, material selection, etc. It keeps the feet dry, cool and odor-free all day long
A-TECH pcb gold plating has been tested by considering many aspects. They include toughness, friction, fatigue, vibrations, noise, reliability, and durability. It keeps the feet dry, cool and odor-free all day long
A-TECH immersion silver pcb has to go through diverse tests. These tests include fatigue resistance testing, dimensional stability testing, chemical resistance testing, and mechanical testing. It provides cushioned support for footwear such as running shoes, sneakers, basketball shoes
The design of A-TECH immersion silver pcb shows professionalism. The mechanical properties, including materials hardness, structural toughness, efficiency, fatigue resistance have all optimized. It keeps the feet dry, cool and odor-free all day long
The manufacture of A-TECH immersion silver pcb is divided into a few aspects. They are mainly materials preparation, mechanical components' cleaning, cutting, milling, welding, and parts assembly. It provides cushioned support for footwear such as running shoes, sneakers, basketball shoes
Possesses immersion silver pcb features, pcb gold plating will be of universal significance for the field. Durability is a big selling point of this product
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