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    • 73. 发明专利
    • Wiring circuit board
    • 接线电路板
    • JP2006086219A
    • 2006-03-30
    • JP2004267275
    • 2004-09-14
    • Nitto Denko Corp日東電工株式会社
    • KANEKAWA HITONORIOSAWA TETSUYAOYABU KYOYA
    • H05K3/34
    • G11B5/4853G11B5/4846G11B5/486H01L2924/0002H05K1/056H05K1/111H05K3/3452H05K3/3478H05K2201/09472H05K2201/09745H05K2203/041Y02P70/611H01L2924/00
    • PROBLEM TO BE SOLVED: To provide a wiring circuit board which can secure a wide connection area while preventing a short circuit between terminals, and which contains the terminals surely connected to external terminals via molten metal. SOLUTION: On a support substrate 2, a base insulation layer 3 is so formed that insulating recess portions 13 may be formed in portions where external connection terminals 8 are to be formed. On the base insulation layer 3, a conductor pattern 4 is so formed that a plurality of interconnections 4a, 4b, 4c, and 4d and magnetic head-side connection terminals 7 and the external connection terminals 8 may be integrally formed and conductive concave portions 9 may be formed in the external connection terminals 8. Thereafter, a cover insulation layer 10 is formed on the base insulation layer 3 so that the magnetic head-side connection terminals 7 and the external connection terminals 8 may be exposed. In this suspension substrate 1 with a circuit, even if the external connection terminals 8 are connected to connection terminals of a read/write substrate via solder balls 21, connection can be surely established. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够确保较宽的连接区域同时防止端子之间的短路并且包含通过熔融金属确定地连接到外部端子的端子的布线电路板。 解决方案:在支撑基板2上,形成基部绝缘层3,使得可以在要形成外部连接端子8的部分中形成绝缘凹部13。 在基底绝缘层3上,形成导体图案4,使得多个互连4a,4b,4c,4d和磁头侧连接端子7和外部连接端子8可以一体地形成,并且导电凹部9 可以在外部连接端子8中形成。此后,在绝缘层3上形成覆盖绝缘层10,使得磁头侧连接端子7和外部连接端子8露出。 在具有电路的悬架基板1中,即使外部连接端子8通过焊球21与读取/写入基板的连接端子连接,也可以确定连接。 版权所有(C)2006,JPO&NCIPI