Company Advantages
1. carbon pcb tend to be immersion tin pcb finish than other brands.
2. The product is an essential tool for hazardous materials. Its excellent leakage resistance can prevent the escape of toxic fumes to the surroundings.
3. The product runs with no noise. People can't even notice it is running and they will not hear any humming.
4. The compact area could become more flexible thanks to this product which allows for different ways of the combination of available space.

Hard gold plated, the full name is Electrolytic Nickel Electrolytic Gold. The most common application of hard gold plated is edge connectors(gold fingers), and it may also be plated over the entire circuit boards.

Hard Electrolytic gold consists of a layer of gold plated over a barrier coat of nickel. Hard gold is extremely durable, so it is most commonly applied to high-wear areas such as gold fingers and keypads.

Hard gold is not generally applied to solderable areas, because of its high cost and its relatively poor solderability. The maximum thickness that IPC considers to be solderable is 17.8U”, so if this type of gold must be used on surfaces to be soldered, the recommended nominal thickness should be about 5-10U”.

The advantages of hard gold plated

● Hard, Durable surface
● RoHS Compliant
● Long Shelf life
● Excellent for high-wear products

The disadvantages of hard gold plated

● Additional high cost
● Extra complicated manufacturing process
● Etching undercut can lead to slivering/flaking
● Finish does not fully encapsulate trace sidewalls, except in gold finger areas

A-TECH is capable of using hard gold plated on both of gold fingers and the entire PCB, the typical thickness of hard gold plated for gold fingers can be 0.1 – 3.0um, and the typical thickness of hard gold plated on entire board is 0.1 – 1.27um.

Company Features
1. A-TECH CIRCUITS Co., Ltd. is a large company that has grown and prospered, with a potent capability in manufacturing immersion tin pcb finish .
2. A-TECH CIRCUITS Co., Ltd. has established R&D institutes and complete carbon pcb factories around the nation.
3. The mission of A-TECH CIRCUITS Co., Ltd. is to provide high quality products at competitive prices. Ask! Our high quality hasl pcb will meet the different requirements of our customers. Ask! A-TECH CIRCUITS Co., Ltd. aims to provide you with a competitive price system. Ask!