导航
In the face of fierce competition in the market, the cost of PCB circuit board materials is also rising. More and more manufacturers are monopolizing the market at low prices in order to improve their core competitiveness.
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OSP is Organic Solderability Preservatives. OSP is to grow a layer of organic skin film on the clean bare copper surface by chemical method. The film has oxidation resistance, heat shock resistance and moisture resistance, which is used to protect th
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Misunderstanding 1: a signal above GHz is a high-speed signal? When "high-speed signal" is mentioned in layout design, it is necessary to make clear what is "high speed".
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Generally, there are no more than 4 kinds of plate splicing requirements. The number of layers, copper thickness and surface finishing technology requirements of each type of plate are the same. In addition, negotiate with the manufacturer's engineer
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SMT chip production is divided into two stages, one is offline preparation. The second is online debugging. Each factory has different details according to the model and management mode of its own mounter.
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"Halogen" is Greek, which originally means saline alkali land. Halogen or halogen elements include five chemical elements, namely fluorine, chlorine, bromine, iodine and astatine. In the electronics sector, only bromine and chlorine are of the most i
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