发明授权
- 专利标题: Multi-layer printed circuit board and method of making same
- 专利标题(中): 多层印刷电路板及其制作方法
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申请号: US08786494申请日: 1997-01-21
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公开(公告)号: US06528736B1公开(公告)日: 2003-03-04
- 发明人: Daniel Phillip Dailey , Robert Edward Belke, Jr. , Jay DeAvis Baker , Achyuta Achari , Myron Lemecha , Michael George Todd
- 申请人: Daniel Phillip Dailey , Robert Edward Belke, Jr. , Jay DeAvis Baker , Achyuta Achari , Myron Lemecha , Michael George Todd
- 主分类号: H01R909
- IPC分类号: H01R909
摘要:
Method of manufacturing a multi-layer printed circuit board adapted for reduce interfacial sheer stresses includes a laminate substrate having a top layer forming a first major surface, a middle layer having a predetermined thickness and a bottom layer forming a second major surface opposed to the first major surface. Etch resists are disposed on the first and second surfaces corresponding to reverse images of desired conductor patterns. The first and second surfaces are thereafter etched and the photoresist removed. The laminate substrate is secured via a low modules adhesive layer to a major surface of a base. The middle layer of the laminate substrate is thereafter selectively etched so as to isolate selected portions of the first and second surfaces and to define inner connect regions therebetween having a height equal to the predetermined thickness.
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