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Office:No.221 Shenshan Road, Pingshan Street, Pingshan New District, Shenzhen

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Cause Analysis and Improvement Measures of No Copper in PTH Holes

Due to the high vertical and horizontal thickness of the deep-hole electroplating products, the exchange of syrup in the pores is difficult during the PTH process, and there is no metal phenomenon in the pores. There is no metal slice in the PTH process hole of the circuit board. The metal phenomenon is similar in the hole caused by different reasons. It is necessary to analyze and distinguish carefully to distinguish the real cause of the defect. According to different slice shapes, the metal in the PTH hole can be divided into two. Potion, special design, production operation.

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