A-TECH hot-sale pcb mask free delivery at discount

Company Advantages
1. The design of tin plating pcb contributes to the uniqueness of pcb mask in the market.
2. The pcb mask thus produced has features like tin plating pcb .
3. tin plating pcb is big pros for pcb mask.
4. The robust sale growth indicates the bright future of the product.
5. Most of customers consider it to be a necessity in the field.

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 years of development, A-TECH CIRCUITS Co., Ltd. has been a recognized and reliable manufacturer in providing and marketing tin plating pcb .
2. A-TECH CIRCUITS Co., Ltd. has great advantages in talent and research.
3. We would like to share how we are trying to make a positive impact on the world. We will invest in improving society by charitable giving. For example, we take part in initiatives donating money for building schools and nursing home. A-TECH CIRCUITS Co., Ltd. adheres to the business philosophy of honesty. Ask! Our mission is to manufacture and deliver world-class quality products and provide excellent and reliable services, and ultimately create a company that will provide long-term value for customers. Ask!