发明名称 |
Implementing selective rework for chip stacks and silicon carrier assemblies |
摘要 |
A method, apparatus, and structure are provided for implementing selective rework for chip stacks. A backside metal layer to create resistive heating is added to a chip backside in a chip stack. A rework tool applies a predefined current to the backside metal layer to reflow solder connections and enables separating selected chips in the chip stack. |
申请公布号 |
US8796578(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US201313869658 |
申请日期 |
2013.04.24 |
申请人 |
International Business Machines Corporation |
发明人 |
Bartley Gerald K.;Becker Darryl J.;Germann Philip R.;Maki Andrew B. |
分类号 |
B23K1/018;B23K3/047 |
主分类号 |
B23K1/018 |
代理机构 |
|
代理人 |
Pennington Joan |
主权项 |
1. An apparatus for implementing selective rework for chip stacks comprising:
a chip stack including a plurality of chips; a chip in a chip stack; a backside metal layer on said chip; said backside metal layer for creating resistive heating; a rework tool in physical engagement with said backside metal layer; a rework tool controller coupled to said rework tool for applying a predefined current to the backside metal layer to reflow solder connections on said chip backside and for separating selected chips in said chip stack. |
地址 |
Armonk NY US |