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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 advantages of OSP

● 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.

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pcb surface finish Humanized design is adopted, when the scanning platform is not working, it will automatically enter the silent and power-saving mode, automatically sleep, saving energy and power.

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The surface of pcb surface finish is specially treated with waterproof technology, which is resistant to dirt and easy to clean.

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pcb surface finish is made of environmentally friendly and safe materials, refined by advanced processing technology, thick in texture, durable, beautiful and practical.

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The reel of pcb surface finish is made of high-quality ABS engineering plastics, with firm and reliable structure, exquisite workmanship, beautiful appearance, strong practicability and durability.

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pcb surface finish It adopts a fully automatic electric control system, and only needs to switch modes manually. In the water production process, it will automatically stop when the water is full, and it will automatically start when it is short of water. There is no need for excessive manual management.

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The strict internal quality control system enables pcb surface finish to reach the international leading level. The surface of the product will not peel off or crack even used for a long time

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