highly-rated immersion gold pcb gold plated free delivery at discount

Company Advantages
1. immersion gold pcb is of pcb gold plating with decent detail.
2. With excellent characteristics like pcb gold plating , immersion gold pcb is specially suitable for tin plating pcb .
3. The product provides people with hygiene and healthy bathroom environment where bacteria are hard to grow and spread.
4. Using this product will help manufacturers to hire more highly skilled workers who are equipped with technical machine know-how. This, in turn, will make the manufacturers more competitive.

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. is a national high-tech enterprise integrating R&D, manufacturing and sales.
2. A-TECH CIRCUITS Co., Ltd. is equipped with many technical talents.
3. We make efforts to eliminate waste in every stage of our operations. We have been focusing on finding ways to reduce, reuse or recycle to divert waste from landfills. We emphasis our sustainability practices during operation. We constantly enhance our capabilities from time to time to comply with environmental and emission norms. We will adhere to the strict green production approach. We have brought in highly efficient water-saving manufacturing facilities that help fully utilize water resources, and we will seriously handle emissions. We recognize society’s expectations of our industry and of our company and that we must go beyond just doing what is legal in order to meet legitimate expectations of society.