A-TECH leveling immersion silver pcb bulk production at discount

Company Advantages
1. Strong designer team: A-TECH silver coating pcb is designed by our design team who are powerful with professional design knowledge. They are also well-trained to put forward design concept and complete the design in a short time. It totally conforms to the UL Flame Rating of 94V-0
2. It effectively strengthens the brand image. The customized factors will influence consumers' perception of the item being packaged. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
3. This product has a certain degree of flex. The material of its fabric has proper weight, thickness, stiffness, stretch, and recovery, which contributes to this property.
4. The product is safe. It has been tested using pH test strips to make sure that the pH level of the fabric ingredients is controlled to the level similar to the surface layer of human skin. Its robust structure allows it to be used in harsh environments

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. Every piece of immersion silver pcb has to go through material checking, double QC checking and etc.
2. The service concept and service mode of A-TECH CIRCUITS Co., Ltd. is silver coating pcb . Ask online!