发明名称 |
Gate array with multiple dielectric properties and method for forming same |
摘要 |
The invention provides an integrated circuit fabricated on a semiconductor substrate. The integrated circuit comprises a first field effect transistor and a second field effect transistor. The first field effect transistor comprises a first polysilicon gate positioned above a first channel region of the substrate and isolated from the first channel region by a first dielectric layer extending the entire length of the first polysilicon gate. The first dielectric layer comprises a first dielectric material with a first dielectric constant. The second field effect transistor comprises a second polysilicon gate positioned above a second channel region on the substrate and isolated from the second channel region by a second dielectric layer extending the entire length of the second polysilicon gate. The second dielectric layer comprises a second dielectric material with a second dielectric constant. The first dielectric constant and the second dielectric constant may be different and both may be greater than the dielectric constant of silicon dioxide.
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申请公布号 |
US6563183(B1) |
申请公布日期 |
2003.05.13 |
申请号 |
US20020085949 |
申请日期 |
2002.02.28 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
EN WILLIAM G.;HALLIYAL ARVIND;LIN MINH-REN;NGO MINH VAN;TABERY CYRUS E.;YANG CHIH-YUH |
分类号 |
H01L21/8234;(IPC1-7):H01L29/76;H01L29/94;H01L31/113;H01L31/119;H01L31/061 |
主分类号 |
H01L21/8234 |
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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