A-TECH high quality peelable mask pcb cheapest factory price for wholesale

Company Advantages
1. A-TECH peelable mask pcb involves a wide variety of designing elements. They are arch type, walking posture, pressure/weight focusing point, and Gait balance analysis.
2. Strict testing: the product undergoes extremely strict testing more than once to achieve its superiority over other products. The testing is conducted by our rigorous testing personnel.
3. Adopt advanced quality testing equipment and methods to ensure the high quality of products.
4. People will find that this product stands up to frequent washing and numerous times of wear, not fading or becoming dingy.

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. As a high-tech enterprise, A-TECH CIRCUITS Co., Ltd. mainly focuses on R&D and manufacture of peelable mask pcb .
2. Our company attracts and retains top talents. As skilled problem-solvers for us and our customers, these people have all the skills, knowledge and competency of specialist trades to develop extraordinary products.
3. A-TECH CIRCUITS Co., Ltd. persistently keeps satisfying the needs of clients immersion tin pcb . Please contact. In the peelable solder mask pcb industry, the A-TECH brand will pay more attention to service quality. Please contact. A-TECH CIRCUITS Co., Ltd. positions itself as a long-term partner from the carbon pcb field. Please contact.