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After the design of PCB board, the need to choose the circuit board surface treatment process, the circuit board surface treatment process is now commonly used HASL (surface spray tin process), ENIG (gold process), OSP (oxidation prevention process).
Several parts of the circuit board are mainly: 1. Bare copper plate: 2. Gold plate: 3. Spray tin circuit board: 4. OSP process board is also called organic welding film in SMT factory.
Gold deposition is used by chemical deposition, through the method of chemical REDOX reaction to generate a layer of coating, generally thick, is a kind of chemical nickel gold deposit method, can reach a thicker gold layer.
PCB manufacturing, PCB design and PCBA processing manufacturers will explain the final coating types on PCB surface
PCB manufacturers, PCB designers and PCBA manufacturers explain to you what problems PCB punching may cause and why the board surface blisters
Circuit board manufacturing, circuit board design and PCBA processing manufacturers explain in detail the use of circuit board surface mount technology CSP and passive components
Kingford is a PCB company engaged in the production and assembly of circuit boards. We not only sell PCBA, but also have many strategies related to PCB design and PCB proofing. Next, let me introduce you to some matters related to PCB.
Circuit board cleaning agent refers to the cleaning surface residue after PCBA circuit board processing and welding