发明名称 PRINTED WIRING BOARD AND ITS MANUFACTURING METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide a printed wiring board which can control connection resistance between a metal substrate and a conductive layer, and can be simplified in manufacturing, and its manufacturing method. Ž<P>SOLUTION: The printed wiring board 1 includes the metal substrate 2, an insulating layer 3 formed on the surface of the metal substrate 2, the conductive layer 4 formed on the surface of the insulating layer 3, and a bottomed through-hole 5 formed on the insulating layer 3 and the conductive layer 4 in which the metal substrate 2 is a bottom surface and the insulating layer 3 and the conductive layer 4 are wall surfaces wherein the metal substrate 2 and the conductive layer 4 are electrically connected using the through-hole 5. Then, on the surface of the metal substrate 2 which is the bottom surface of the through-hole 5, a dried matter of conductive ink 6 including metal particulates (that is, residue obtained by evaporating and drying the conductive ink 6) is provided. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010118460(A) 申请公布日期 2010.05.27
申请号 JP20080290072 申请日期 2008.11.12
申请人 SUMITOMO ELECTRIC IND LTD;SUMITOMO ELECTRIC PRINTED CIRCUIT INC 发明人 OKA YOSHIO;KASUGA TAKASHI;PARK JIN-JOO;SHIMOMURA TETSUYA
分类号 H05K1/11;H05K1/05;H05K3/40 主分类号 H05K1/11
代理机构 代理人
主权项
地址