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公开(公告)号:US20030172526A1
公开(公告)日:2003-09-18
申请号:US10385172
申请日:2003-03-10
IPC分类号: H05K003/10 , H05K003/20
CPC分类号: H05K3/108 , H05K1/056 , H05K3/064 , H05K3/205 , H05K3/44 , H05K2201/09781 , H05K2203/0323 , Y10T29/49117 , Y10T29/49126 , Y10T29/49128 , Y10T29/49155 , Y10T29/49158
摘要: The present invention provides a production method of a printed circuit board having a circuit pattern with a little variation in the thickness at a low cost without a special step for removal of a dummy pattern. The present invention is characterized in that an insulating layer 2 is formed in a given pattern on one surface of a supporting substrate 1, a circuit pattern 6 is formed on the insulating layer 2 while forming a dummy pattern 7 in an area free of the insulating layer 2 on the one surface of the supporting substrate 1, and an unnecessary part of the supporting substrate 1, which is free of the insulating layer 2 and the circuit pattern 6, is removed by dissolution together with the dummy pattern 7.
摘要翻译: 本发明提供一种具有电路图案的印刷电路板的制造方法,该电路图案在低成本下具有小的厚度变化,而没有用于去除虚拟图案的特殊步骤。 本发明的特征在于,在支撑基板1的一个表面上以给定的图案形成绝缘层2,在绝缘层2上形成电路图案6,同时在没有绝缘层的区域中形成虚设图案7 在支撑基板1的一个表面上的层2,并且不存在绝缘层2和电路图案6的支撑基板1的不需要的部分通过与虚设图案7一起溶解而被去除。