发明名称 METHOD FOR MANUFACTURING PRINTED-WIRING BOARD HAVING EMBEDDED CAPACITOR CIRCUIT AND PRINTED-WIRING BOARD OBTAINED BY THE METHOD
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a technique for manufacturing a printed-wiring board excellent in an uniformity in film thickness of a dielectric layer and a positional accuracy of a capacitor circuit, which removes as much of an extra dielectric layer as possible, and to provide the printed-wiring board having the embedded capacitor circuit. <P>SOLUTION: The manufacturing method comprises the steps of using the capacitor-layer-forming material having the dielectric layer between a first conductive layer for forming an upper electrode and a second conductive layer for forming a lower electrode, forming a first insulating layer on the outer surface of the second conductive layer of the capacitor-layer-forming material, etching between the upper electrode part of the first conductive layer positioning at the outer layer and the unnecessary part in a thin slit shape, after that, simultaneously exfoliating the dielectric layer of the unnecessary part by exfoliating and removing the unnecesary part of the first conductive layer, and machining the printed-wiring board by leaving only the upper electrode part. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p>
申请公布号 JP2006080402(A) 申请公布日期 2006.03.23
申请号 JP20040264742 申请日期 2004.09.10
申请人 MITSUI MINING & SMELTING CO LTD 发明人 ABE NAOHIKO
分类号 H05K1/16;H01L23/12;H05K3/42;H05K3/46 主分类号 H05K1/16
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