A-TECH ink enig pcb cheapest factory price for wholesale

Company Advantages
1. A-TECH hasl pcb finish has experienced a well-designed process.
2. It brings good color accuracy. It has a proper viewing angles/cones, providing a bright image for those within the cone.
3. This product features extra strength and moisture resistance. Its materials slow down the penetration of water, allowing it not to lose its application properties in humid conditions.
4. Strong strength of A-TECH ensures the quality of the entire company.
5. Excellent service attitude and hard work is the solemn promise of A-TECH CIRCUITS Co., Ltd..

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. Under globalization background, A-TECH CIRCUITS Co., Ltd. has a wide development prospect.
2. This company has established a strong client base. By making full use of the company's yellow pages, we identify the mighty competitors and learn from their strong points and offset our weak points. This helps us grow stronger to win more customers.
3. Our technician will make a professional solution and show you how to operate step by step for our enig pcb . Ask! hasl pcb finish is our tenet for ever. Ask!