发明名称 |
Self-aligned dual-metal silicide and germanide formation |
摘要 |
A method includes growing an epitaxy semiconductor region at a major surface of a wafer. The epitaxy semiconductor region has an upward facing facet facing upwardly and a downward facing facet facing downwardly. The method further includes forming a first metal silicide layer contacting the upward facing facet, and forming a second metal silicide layer contacting the downward facing facet. The first metal silicide layer and the second metal silicide layer comprise different metals. |
申请公布号 |
US9214556(B2) |
申请公布日期 |
2015.12.15 |
申请号 |
US201313963887 |
申请日期 |
2013.08.09 |
申请人 |
Taiwan Semiconductor Manufacturing Company, Ltd. |
发明人 |
Wann Clement Hsingjen;Sun Sey-Ping;Yeh Ling-Yen;Shih Chi-Yuan;Yu Li-Chi;Tsai Chun Hsiung;Lin Chin-Hsiang;Chen Neng-Kuo;Chang Meng-Chun;Ma Ta-Chun;Huang Gin-Chen;Huang Yen-Chun |
分类号 |
H01L21/336;H01L29/78;H01L29/66 |
主分类号 |
H01L21/336 |
代理机构 |
Slater & Matsil, L.L.P. |
代理人 |
Slater & Matsil, L.L.P. |
主权项 |
1. A method comprising:
growing an epitaxy semiconductor region at a major surface of a wafer, wherein the epitaxy semiconductor region comprises an upward facing facet facing upwardly and a downward facing facet facing downwardly; forming a first metal silicide layer contacting the upward facing facet; and forming a second metal silicide layer contacting the downward facing facet, wherein the first metal silicide layer and the second metal silicide layer comprise different metals. |
地址 |
Hsin-Chu TW |