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silver immersion tin pcb bulk production for wholesale A-TECH

Silver immersion tin pcb bulk production for wholesale A-TECH

Shelf Life
6 Months
RoHS Compliant
Additional Cost
Supply Capacity
5000 ㎡/Month
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Get Latest Price
Get the latest price
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Product Details
To better learn about PCB prototype, A-TECH will provide detailed pictures and detailed information in the following section for your reference.
Enterprise Strength
  • A-TECH takes constant innovation and improvement on the service model and strives to provide efficient and considerate services for customers.
Company Advantages
1. A-TECH pcb gold plating has been tested by third-party testing organizations. It has been checked in terms of miter edge lamination, polish, flatness, hardness, and straightness.
2. The product poses no risks to the human body. The ingredients have been already tested to contain no harmful substances.
3. The achievements all show that A-TECH's persistence and efforts on quality.
4. A-TECH CIRCUITS Co., Ltd. better understands customers’ needs and always shows willingness to help.

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 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.

Company Features
1. With a high popularity, A-TECH has done a better performance over the years.
2. A-TECH CIRCUITS Co., Ltd.'s key technologies make its immersion tin pcb products more efficient and competitive.
3. A-TECH CIRCUITS Co., Ltd. ensures you receive the greatest and superior quality of immersion gold pcb . Please contact us! A-TECH CIRCUITS Co., Ltd. will render more professional, more brilliant, and more perfect service. Please contact us!
The attractive appearance of A-TECH immersion tin pcb is designed by our professional designers. It is widely used in hotels and some world-class brands
The offered A-TECH immersion tin pcb is developed by a team of diligent professionals. The product won't cause allergies to users
The production equipment of A-TECH immersion gold pcb is advanced and meets the requirements of international standards. The product has no unpleasant odor at all
A-TECH immersion gold pcb is produced under highly standardized production environment. It has been proved that the product contains no synthetic dyes
A-TECH immersion gold pcb is designed by a team of experienced experts using the latest design concept based on a strict design process. It produces a delicate fragrance, which gives users a good mood
The product meets with the quality standards of many countries and regions. It can be supplied with different sizes to meet customers' needs
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