Vehicle-mounted printed board and processing method for improving dyne value of golden finger surface of vehicle-mounted printed board
By disabling mechanical abrasive brushes and employing volcanic ash treatment and chemical micro-etching processes to optimize the surface roughness of the gold fingers, the problem of low dyne values for automotive printed circuit boards was solved, achieving high dyne values and stable bonding reliability, while reducing production costs and process complexity.
CN121865531APending Publication Date: 2026-04-14TAIHE CIRCUIT TECH (ZHUHAI) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIHE CIRCUIT TECH (ZHUHAI) CO LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-04-14
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Figure CN121865531A_ABST
Abstract
The invention relates to the technical field of electronic circuit manufacturing, and particularly discloses a vehicle-mounted printed board and a processing method for improving the dyne value of a golden finger of the vehicle-mounted printed board. According to the method, the micro-morphology of the surface of the golden finger is synergistically optimized mainly through specific process combination of forbidding of a polishing brush and adoption of a volcanic ash process in resistance welding pretreatment, forbidding of the polishing brush in gold melting pretreatment, micro-etching time control and the like, so that the dyne value of the surface of the golden finger is effectively improved. According to the method, the bonding reliability can be improved under the condition that a comprehensive protective agent is not used, and the cost can be reduced.
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