Analysis of Common Problems of PCB Cleaning

Introduction:With the rapid development of PCB manufacturing technology, PCB cleaning technology must be constantly updated and developed. Various cleaning technologies emerge at the right moment have different advantages and disadvantages in the process of their use. This paper discusses the analysis and solutions of the problems that often occur in these PCB cleaning technologies.1. White Spots:One of the problems encountered after the formation of the cleaning process is that after the PCB...

PCB Cleaning

Organic Solderability Preservative (OSP)

—A Method of Surface Finish TechnologiesBackground:In recent years, electronic products are developing towards light, thin, short, miniaturized and multi-functional. At the same time, PCB is also developing towards high precision, high speed, high density and so on. In particular, the rapid development of SMT makes the hot air leveling process increasingly unsuited to the requirements of PCB manufacturing process. Meanwhile, the welding material, such as Sn-Pb, used in the hot air leveling proce...

SMT Organic Solderability Preservative (OSP)

Surface Finish Technology

Background:At present, the environmental problems involved in PCB production are particularly prominent. Lead and bromine are the hottest topics at the moment; Lead-free and halogen-free will affect the development of PCB in many ways. Although changes in the surface treatment process of PCB are not significant at present and seem to be relatively distant, it should be noted that the slow change in the long term will lead to great changes. PCB surface treatment technology is bound to change dram...

Surface Finish Technology

Detailed Procedures of Plating Copper for PCB Processing

——Technical Analysis of Plating Copper for PCB ProcessingElectroless plating is widely used in the printed circuit board (PCB) production and processing which has holes on that and it can also be called PTH(Plate Through Hole), the main purpose is to deposit a layer of copper through a series of chemical treatment methods in the conductive substrate, and then increasing the thickness of the copper layer through subsequent electroplating methods to its specific thickness of design which is usuall...

Charge Adjustment Oil Removing Cromic Acid PTH PCB process Electroless plating Plating Copper

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