Invention Grant
- Patent Title: Transistor with inner-gate spacer
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Application No.: US15778304Application Date: 2015-12-23
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Publication No.: US10431661B2Publication Date: 2019-10-01
- Inventor: En-Shao Liu , Joodong Park , Chen-Guan Lee , Jui-Yen Lin , Chia-Hong Jan
- Applicant: INTEL CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Finch & Maloney PLLC
- International Application: PCT/US2015/000193 WO 20151223
- International Announcement: WO2017/111774 WO 20170629
- Main IPC: H01L29/49
- IPC: H01L29/49 ; H01L29/423 ; H01L29/66 ; H01L29/775 ; H01L21/3213 ; H01L21/764 ; B82Y10/00 ; H01L29/78 ; H01L29/786 ; H01L29/51 ; H01L29/06 ; H01L29/08

Abstract:
Techniques are disclosed for forming a transistor with one or more additional spacers, or inner-gate spacers, as referred to herein. The additional spacers may be formed between the gate and original spacers to reduce the parasitic coupling between the gate and the source/drain, for example. In some cases, the additional spacers may include air gaps and/or dielectric material (e.g., low-k dielectric material). In some cases, the gate may include a lower portion, a middle portion, and an upper portion. In some such cases, the lower and upper portions of the gate may be wider between the original spacers than the middle portion of the gate, which may be as a result of the additional spacers being located between the middle portion of the gate and the original spacers. In some such cases, the gate may approximate an I-shape, -shape, -shape, ⊥-shape, L-shape, or ┘-shape, for example.
Public/Granted literature
- US20180350932A1 TRANSISTOR WITH INNER-GATE SPACER Public/Granted day:2018-12-06
Information query
IPC分类: