| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed wiring board having less short circuit defect between electrically conductive circuits and good circuit formability. SOLUTION: The problems are solved by providing an etching method where, when two or more same kinds of metals manufactured by different processes are selectively etched, etching is conducted by using a reaction-limiting etchant, and by providing a manufacturing method of the printed circuit board using the method. COPYRIGHT: (C)2007,JPO&INPIT
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