发明名称 |
Uses of uniaxially electrically conductive articles |
摘要 |
Polymer (preferably polyimide) sheets with laser ablated through-holes plated with metal are used for making electrical connections to specified microcircuits, especially unbumped microchips and Tape Automated Bonding (TAB) articles. Bonding with different melting-point materials at opposite ends of the plated holes is disclosed. Preferred polyimides are those derived from polymerisation of 4-4'-biphenyldianhydride and (4,4'-diaminobiphenyl, or 4,4'-diaminobiphenylether, or phenylenediamine, preferably p-phenylenediamine). |
申请公布号 |
US5678287(A) |
申请公布日期 |
1997.10.21 |
申请号 |
US19950469347 |
申请日期 |
1995.06.06 |
申请人 |
RAYCHEM LIMITED |
发明人 |
SMITH, NICHOLAS J. G.;LUDDEN, MICHAEL JOSEPH;NYHOLM, PETER;GIBNEY, PAUL JAMES |
分类号 |
B23K1/00;B23K20/02;B23K26/40;B23K31/02;H01L21/48;H01L23/14;H01L23/373;H01L23/498;H05K1/03;H05K3/00;(IPC1-7):H05K3/34 |
主分类号 |
B23K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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