发明名称 |
METAL GATE COMPATIBLE ELECTRICAL ANTIFUSE |
摘要 |
A metal layer and a semiconductor layer are sequentially deposited on a substrate. The semiconductor layer and the metal layer are lithographically patterned to form a stack of a semiconductor portion and a metal gate portion, which is preferably performed concurrently with formation of at least one metal gate stack. In one embodiment, the size of the semiconductor portion is reduced and a metal semiconductor alloy portion is formed on the semiconductor portion by metallization. In a first electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the metal semiconductor alloy portion and the metal gate portion. In another embodiment, two disjoined metal semiconductor alloy portions are formed on the semiconductor portion. In a second electrical antifuse formed thereby, the metal semiconductor alloy portion may be electromigrated to form a short between the two previously disjoined metal semiconductor alloy portions.
|
申请公布号 |
US2009141533(A1) |
申请公布日期 |
2009.06.04 |
申请号 |
US20070946938 |
申请日期 |
2007.11.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KIM DEOK-KEE;KOTHANDARAMAN CHANDRASEKHARAN;MOY DAN;ROBSON NORMAN W.;SAFRAN JOHN M.;STEIN KENNETH J. |
分类号 |
G11C17/08;H01L21/768;H01L27/20 |
主分类号 |
G11C17/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|