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highly-rated hasl lead free bulk production for wholesale

highly-rated hasl lead free bulk production for wholesale
  • highly-rated hasl lead free bulk production for wholesale

highly-rated hasl lead free bulk production for wholesale

A-TECH hasl lead free is made of the finest materials and is subtly crafted by the proficient workers. We Control Pipelines, You Control Health
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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.




hasl lead free is well accepted by excellent material, lifelike modeling and novel design.
The production of A-TECH hasl lead free is based on the industry's most sophisticated standards. Mayer Pipelines For Myriad Supplies
A wide range of technologies are used in the production of A-TECH hasl lead free. Covered to Connect the World
The high-quality materials prolong the service life of A-TECH enig pcb finish. Mayer Pipelines For Myriad Supplies
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The product features enough durability. Its components such as padding, eyelets, upper surface are firmly sewn or glued together to be used for a long time. Excellent Mayer, Healthy Life
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