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highly-rated hasl pcb finish carbon for business at discount

highly-rated hasl pcb finish carbon for business at discount
  • highly-rated hasl pcb finish carbon for business at discount

highly-rated hasl pcb finish carbon for business at discount

A-TECH hasl pcb finish is designed by a professional team who has many years of experiences in designing. It is 100% produced in accordance with IPC-6012 & IPC-A-600F standards
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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.




The raw materials of A-TECH immersion tin pcb finish are durable and have good and stable properties. It can be printed with numbers, names, data codes, logos, or other specific information
A-TECH hasl pcb finish is attractive in its appearance design. Its solderable surface is protected from the oxidation
A-TECH hasl pcb finish is fabricated combining with the simple and modern design concept. Its solder mask can be offered with green, blue, white, black, yellow, and red colors
A-TECH hasl pcb finish is manufactured by following the compatible design concepts. It has passed AOI which ensures there will be no errors or welding defects
A-TECH immersion tin pcb finish is made of high quality raw materials that are guaranteed by our reliable suppliers. With a solder mask, it enjoys a good electrical insulation property
A number of quality tests will be carried out to ensure that products meet industry quality standards. The product has dynamic and mechanical stability
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