high quality pcb surface finish free delivery for wholesale

Company Advantages
1. To bring our customer great experience, A-TECH CIRCUITS Co., Ltd. invites world-class designers to make the best design.
2. The quality of the product has been greatly assured by our complete quality control system.
3. A-TECH has been growing rapidly into a leader in pcb surface finish and related equipment.
4. A-TECH CIRCUITS Co., Ltd. ensures pcb surface finish quality, enhances manufacturing capacity so as to enhance the competitiveness of itself.

OSP, the full name is Organic Solderability Preservative, it preserves the copper surface from oxidation by applying a very thin protective layer of material over the exposed copper usually using a conveyorized process. It uses a water-based organic compound that selectively bonds to copper and provides an organometallic layer that protects the copper prior to soldering. It’s also extremely green environmentally in comparison with the other common lead free finishes, which Suffer from either being more toxic or substantially higher energy consumption.

The typical thickness of OSP is 0.2 – 0.65um and the shelf life is 6 months. It’s a simple manufacturing process to make OSP, and like HASL finish, the production cost of OSP is lower than most of other surface finishes.

The applications of thick copper PCBs

● Cost effective / Low cost
● Simple process
● Excellent flatness
● Re-workable
● Clean, environmentally friendly process

The disadvantages of OSP

● Short shelf life
● Very sensitive to handling – gloves must be used and scratches avoided
● Short operating window between assembly stages
● Not suitable for multiple soldering processes
● Difficult to inspect or measure thickness

A-TECH own OSP line in house, it’s nowadays mainly used to build single-sided FR4 PCB or aluminum PCB with low cost requirements.

Company Features
1. A-TECH ​​is the best-selling domestic pcb surface finish brand.
2. Having successfully produced finest immersion silver pcb , many customers have shown their interest about it.
3. We aim to provide innovative and tailored assurance, testing, inspection, and certification services to our customers across their entire value chain. We work with our clients to help them tackle their environmental and social challenges and in doing so promote the transition to more sustainable market economies. We commit ourselves to safety, quality, reliability, and innovations. We will always prioritize these values at the top during the production processes. Call!