发明名称 |
Integrated circuit structure with substrate isolation and un-doped channel |
摘要 |
The present disclosure provides a semiconductor structure. The semiconductor structure includes a fin structure formed on a substrate; a gate stack formed over the fin structure; source/drain regions over the substrate and disposed on opposing sides of the gate stack; a channel region defined in the fin structure and underlying the gate stack, wherein the channel region is un-doped; and a buried isolation layer disposed vertically between the channel region and the substrate, wherein the buried isolation layer includes a compound semiconductor oxide. |
申请公布号 |
US9484461(B2) |
申请公布日期 |
2016.11.01 |
申请号 |
US201414500606 |
申请日期 |
2014.09.29 |
申请人 |
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. |
发明人 |
Ching Kuo-Cheng;Chen Guan-Lin |
分类号 |
H01L21/12;H01L29/78;H01L29/66;H01L29/165 |
主分类号 |
H01L21/12 |
代理机构 |
Haynes and Boone, LLP |
代理人 |
Haynes and Boone, LLP |
主权项 |
1. A semiconductor device comprising:
a fin structure formed on a substrate; a gate stack formed over the fin structure; source/drain regions over the substrate and disposed on opposing sides of the gate stack; a channel region defined in the fin structure and underlying the gate stack, wherein the channel region is un-doped; a buried isolation layer disposed vertically between the channel region and the substrate, wherein the buried isolation layer includes a compound semiconductor oxide, and wherein the buried isolation layer has a first thickness within the channel region and extends to the source/drain regions with a second thickness less than the first thickness; and a semiconductor material layer disposed on the buried isolation layer within the source/drain regions. |
地址 |
Hsin-Chu TW |