发明名称 |
Backside metallization scheme for semiconductor devices |
摘要 |
A backside metallization scheme for semiconductor devices includes a vanadium layer (16) disposed on the backside (14) of a wafer (10) and a silver layer (18) disposed on the vanadium layer (16). An optional intermediate layer (20) comprising either a mixture of vanadium and silver or nickel may be disposed between the vanadium layer (16) and the silver layer (18). The vanadium layer (16) exhibits excellent adhesion characteristics on the backside (14) of wafers (10) having a finish at least as fine as a 300 grit equivalency while the silver layer (18) exhibits excellent solderability characteristics.
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申请公布号 |
US4946376(A) |
申请公布日期 |
1990.08.07 |
申请号 |
US19890333938 |
申请日期 |
1989.04.06 |
申请人 |
MOTOROLA, INC. |
发明人 |
SHARMA, RAVINDER K.;LYTLE, WILLIAM H.;ROGONA, ANGELA;HILEMAN, BENNETT L. |
分类号 |
C23C28/02;H01L21/52;H01L23/482 |
主分类号 |
C23C28/02 |
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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