hot-sale pcb mask solder bulk production at discount

Company Advantages
1. In the production of A-TECH lead free hasl pcb, our professional and dedicated team is ready to develop, test and finalize the sophisticated product with an optimum ratio of actives and efficiency that can meet the standards in the beauty makeup industry. With a compact design, it is space-saving
2. A-TECH CIRCUITS Co., Ltd.'s pcb mask has been sold to oversea market for several years and has been well received by customers. It has passed AOI which ensures there will be no errors or welding defects
3. This product has a high water treating effect. Its built-in ultrafiltration system can filter out the worthless and harmful suspended solids or other contaminants. It can reduce the electrical signal loss and provides the highest efficiency

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 CIRCUITS Co., Ltd. is a well-recognized company headquartered in China. We are engaged in manufacturing and exporting lead free hasl pcb.
2. Our company is comprised of specialists. They have unique backgrounds in product design and material applications. They assist customers in choosing the right products or design to suit needs.
3. Our philosophy is "Honor the contract and keep promises; Searching for development with high quality; Serving guests with credibility". We are eagerly looking forward to cooperating with customers.