A-TECH hot-sale immersion tin pcb cheapest factory price for wholesale

Company Advantages
1. In the manufacture of A-TECH immersion tin pcb finish , it has to go through a series of production processes, including metal materials CNC cutting, milling, welding, and assembly.
2. The product is heat-insulating. It can well protect the feet from injuries caused by broiling ground or hot water.
3. The product is characterized by its excellent colorfastness. It will not fade in terms of washing, seawater, chlorinated water, perspiration, and hydrolysis.
4. It is an effective marketing tool. For instance, many enterprises have embraced the culture of printing their company names, logos and other promotional content on it while promoting merchandise.
5. Many of our customers say their clients like it very much, and the clients no longer hate to clean their pools regularly.

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. A-TECH CIRCUITS Co., Ltd. now is a manufacturer with a reputation at home and abroad.
2. The factory is built strictly in line with regulations for workshops. The arrangement of the production line, ventilation, and indoor air quality have been taken into consideration. These good production conditions lay a foundation for stable product output.
3. A-TECH CIRCUITS Co., Ltd. has built up complete quality control and service systems. Please contact. A-TECH insists on the talent development idea of 'people oriented'. Please contact. A-TECH CIRCUITS Co., Ltd. will tightly keep immersion tin pcb finish in mind and better serve customers. Please contact.