A-TECH highly-rated peelable mask pcb cheapest factory price for wholesale

Company Advantages
1. A-TECH osp coating pcb is manufactured using quality raw materials and advanced production technology.
2. The product features flexible configurations. It is easy to move and its reasonable size does not occupy too much working space.
3. The product is able to manage well its heat. It has a heat dissipation substrate that effectively acts as an essential role in cooling.
4. It promotes quality and tranquil sleep. This ability to obtain a sufficient amount of undisturbed sleep will have an immediate and long-term impact on a person's health.

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. Except exquisite peelable mask pcb , A-TECH CIRCUITS Co., Ltd. is also highly recommended by customers for its exquisite service.
2. Our company is composed of highly qualified industrial product designers. Together, they continuously look for design approaches which can lower cost and increase production without sacrificing the quality.
3. In this booming society, A-TECH aims to be a much better company in the area of hasl pcb . Check it! A-TECH uses our industry knowledge, expertise and innovative thinking to drive customers' business growth and bring you greater benefits. Check it! Our objective is to work together with our clients to create competitive products. Check it!