发明申请
- 专利标题: METHOD FOR MANUFACTURING CIRCUIT BOARD
- 专利标题(中): 制造电路板的方法
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申请号: US14742070申请日: 2015-06-17
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公开(公告)号: US20160374206A1公开(公告)日: 2016-12-22
- 发明人: Jaen-Don Lan , PIN-CHUNG LIN , CHEN-RUI TSENG , CHENG-EN HO , YU-AN CHEN
- 申请人: KINSUS INTERCONNECT TECHNOLOGY CORP.
- 主分类号: H05K3/00
- IPC分类号: H05K3/00 ; B23K26/402 ; H05K3/16 ; B23K26/386
摘要:
Disclosed is a method for manufacturing a circuit board, including preparing a substrate having a resin layer and a stop layer, forming at least one conduction hole penetrating the resin layer and stopping at the stop layer, forming a first metal layer through a sputtering process, forming a second metal layer on the first metal layer through a chemical plating process, forming a third metal layer having a circuit pattern, exposing part of the second metal layer and filling up the conduction hole through an electroplating process, and etching the second metal layer and the first metal layer under the second metal layer to expose the resin layer under the first metal layer. Since the first metal layer provides excellent surface properties, the second and third metal layers are well fixed and stable. The etched circuit pattern has a line width/pitch less than 10 μm for fine line width/pitch.
公开/授权文献
- US09744624B2 Method for manufacturing circuit board 公开/授权日:2017-08-29
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