A-TECH hot-sale immersion silver pcb factory for wholesale

Company Advantages
1. A-TECH hard gold pcb is made of high quality and durable raw materials which have been well selected before entering into the factory. With a compact design, it is space-saving
2. Since the product can bring great economic benefits to every user, it is well-received and widely used in the market now. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
3. As a widely used product, immersion silver pcb made in A-TECH is famous for its hard gold pcb . It totally conforms to the UL Flame Rating of 94V-0

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 one of the top domestic and international producers in China.
2. Our company has witnessed unparalleled growth in terms of sales and customer belief. We sell products not only in China but also in many parts of the world including the United States and Japan.
3. A-TECH PCB will constantly exceed customer expectations by providing innovative immersion silver pcb . Inquiry!