PCB Technical - Core board pcb and GPS positioning motherboard

Electroplating is an indispensable process in the production of core board PCB. The coating of core board PCB varies depending on the purpose of the board. The following core board PCB manufacturers will briefly introduce you to the properties and uses of copper plating and nickel plating.

Properties and uses of core board PCB copper coating:
The copper plating layer is beautiful rosy, soft in nature, malleable, easy to polish, and has good thermal and electrical conductivity. However, it is easy to oxidize in the air and lose its luster quickly, so it is not suitable as the "surface" layer of protective-decorative coating.
Copper plating is mainly used as the "bottom" layer for multi-layer plating of steel parts, and is also often used as the "bottom" layer for tin plating, gold plating and silver plating. The bonding force is also conducive to the deposition of surface coatings. When the core board PCB copper plating layer is non-porous, the corrosion resistance of the surface plating layer can be improved. For example, the advantages of thick copper and thin nickel plating in the protective-decorative multi-layer plating are that it can save valuables. Metallic nickel.
The properties and uses of the core board PCB nickel coating:
Metallic nickel has a strong passivation ability, which can quickly form a very thin passivation film on the surface of the part, which can resist the corrosion of the atmosphere and certain acids, so the stability of the nickel coating in the air is very high. In the simple salt electrolyte of nickel, a very fine crystalline coating can be obtained, which has excellent polishing performance. The polished nickel coating has a mirror-like luster while maintaining its luster for a long time in the atmosphere. In addition, the nickel plating layer also has high hardness and wear resistance. According to the nature of nickel plating, it is mainly used as the bottom layer, middle layer and surface layer of protective-decorative plating, such as nickel-chromium plating, nickel-copper-nickel-chromium plating, copper-nickel-chromium plating and copper-nickel plating Wait.
Due to the high porosity of the nickel plating layer, it is non-porous only when the thickness of the plating layer is more than 25μm. Therefore, the nickel plating layer is generally not used as a protective plating layer.
The core board PCB is widely used in various industries, and our lives are full of electronic products produced by various core board PCB.
The protruding flower shape used by the clothing sticker to store the GPS positioning main body makes the GPS positioning mainboard well concealed, and when the cover is closed, the window for the replacement and charging of the GPS positioning main body is closed, which protects the GPS positioning main body from The role that was discovered. The filling material is a soft combed sliver with certain properties, which plays the role of buffering mechanical impact and protecting the GPS positioning main body. The exquisite design of the clothing sticker makes it play a decorative role when the clothing sticker is pasted on the clothes, and integrates the clothing sticker with the clothes, also for the purpose of concealing the GPS positioning of the main body. The position where the clothing sticker is pasted on the clothes is the chest, which does not hinder children's activities, and children will not easily take off, which exerts the greatest positioning effect. The GPS positioning body and the clothing sticker can be separated, which is convenient for cleaning the clothing sticker and replacing the faulty GPS positioning body, which is convenient and practical. The convex flower shape is mainly used to fill the flocculent filling material and the GPS main body, and the filling material wraps the GPS positioning main board.