发明名称 |
Flip-chip transition interface structure |
摘要 |
A flip-chip transition interface structure is suitable for use in high speed applications that require low return losses. The transition interface includes a conductive signal element and two conductive reference elements formed on a flip-chip die substrate. A signal solder bump is located at a signal bond pad formed at an end of the conductive signal element, and a reference solder bump is located at each conductive reference element. The conductive elements are configured to form a substantially round cutout region surrounding the signal bond pad. The positions of the solder bumps on the respective conductive elements are selected in a manner that enhances the impedance matching of the transition interface structure.
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申请公布号 |
US6469383(B1) |
申请公布日期 |
2002.10.22 |
申请号 |
US20010957439 |
申请日期 |
2001.09.17 |
申请人 |
APPLIED MICRO CIRCUITS CORPORATION |
发明人 |
WELSTAND ROBERT B. |
分类号 |
H01L23/66;H01P1/04;(IPC1-7):H01L23/48;H01L23/52;H01L29/40 |
主分类号 |
H01L23/66 |
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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