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公开(公告)号:US11725294B2
公开(公告)日:2023-08-15
申请号:US18048510
申请日:2022-10-21
发明人: Xiao Ma , Lei Yang , Huasan Chen , Zhengsheng Tang , Jin Sun , Bo Zhou , Minglong Wang
摘要: The present disclosure involves a method for partial gold plating of a metal packaging housing and a packaging housing thereof. The packaging housing may include a base. The base may be provided with at least one lead hole. A housing lead may be interspersed in the lead hole. The lead hole may be also provided with an insulator surrounding the housing lead. The method may include operations such as nickel plating, oxidation, gold plating, reduction, etc.