发明名称 |
Zusammengesetzte Weichlotpaste für Löthöcker für Flip-Chip-Montage |
摘要 |
Composite solder paste compositions adapted to be deposited using a dry film photoresist mask to form solder joints for flip chip integrated circuit devices. The composite solder paste compositions are characterized by the ability to flow at a first temperature during bumping reflow while the photoresist mask is present, yet upon subsequently reheating to a higher temperature yield solder joints capable of withstanding temperatures of 200 DEG C and higher. As such, the present invention retains the advantages associated with using a dry film photoresist as a mask during deposition of the solder, yet results in the formation of solder joints that exhibit enhanced reliability in severe thermal environments. |
申请公布号 |
DE69618416(T2) |
申请公布日期 |
2002.11.07 |
申请号 |
DE1996618416T |
申请日期 |
1996.08.26 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
YEH, SHING;CARTER, BRADLEY HOWARD |
分类号 |
B23K35/22;B23K35/02;B23K35/14;B23K35/26;H01L21/60;H01L23/485;H05K3/34 |
主分类号 |
B23K35/22 |
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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