发明授权
- 专利标题: Manufacturing process of embedded type flexible or rigid printed circuit board
- 专利标题(中): 嵌入式柔性或刚性印刷电路板的制造工艺
-
申请号: US11850830申请日: 2007-09-06
-
公开(公告)号: US07892412B2公开(公告)日: 2011-02-22
- 发明人: Roger Chang
- 申请人: Roger Chang
- 申请人地址: TW Xinzhuang
- 专利权人: Mutual-Tek Industries Co., Ltd.
- 当前专利权人: Mutual-Tek Industries Co., Ltd.
- 当前专利权人地址: TW Xinzhuang
- 代理机构: Snell & Wilmer L.L.P.
- 主分类号: C25D5/02
- IPC分类号: C25D5/02
摘要:
A manufacturing process of an embedded type flexible or rigid printed circuit board includes multiple steps. First, a layer of dry film is applied to a layer of copper foil. Then a circuit pattern is formed on the copper foil through photolithography processes. An etching stop layer is electroplated on the copper foil according to the circuit pattern. The etching stop layer is then electroplated with copper. The copper foil is softened by a high temperature process after removing the dry film. Then the layer of the copper foil is etched after coating with an organic layer and the organic layer is solidified.
公开/授权文献
信息查询