发明名称 |
Scaling EOT by eliminating interfacial layers from high-K/metal gates of MOS devices |
摘要 |
An integrated circuit structure includes a semiconductor substrate, and a phonon-screening layer over the semiconductor substrate. Substantially no silicon oxide interfacial layer exists between the semiconductor substrate and the phonon-screening layer. A high-K dielectric layer is located over the phonon-screening layer. A metal gate layer is located over the high-K dielectric layer. |
申请公布号 |
US9478637(B2) |
申请公布日期 |
2016.10.25 |
申请号 |
US201012789681 |
申请日期 |
2010.05.28 |
申请人 |
Taiwan Semiconductor Manufacturing Company, Ltd. |
发明人 |
Xu Jeffrey Junhao |
分类号 |
H01L29/78;H01L29/66;H01L21/28;H01L29/51;H01L21/02;H01L21/306 |
主分类号 |
H01L29/78 |
代理机构 |
Slater Matsil, LLP |
代理人 |
Slater Matsil, LLP |
主权项 |
1. An integrated circuit structure comprising:
a semiconductor substrate; a phonon-screening layer over the semiconductor substrate, wherein substantially no silicon oxide interfacial layer is between the semiconductor substrate and the phonon-screening layer; a high-K dielectric layer over the phonon-screening layer; and a metal gate layer over the high-K dielectric layer, wherein the phonon-screening layer, the high-K dielectric layer, and the metal gate layer are coterminous. |
地址 |
Hsin-Chu TW |