Invention Grant
US09236452B2 Raised source/drain EPI with suppressed lateral EPI overgrowth
有权
提高源/排出EPI,抑制侧向EPI过度生长
- Patent Title: Raised source/drain EPI with suppressed lateral EPI overgrowth
- Patent Title (中): 提高源/排出EPI,抑制侧向EPI过度生长
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Application No.: US14286400Application Date: 2014-05-23
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Publication No.: US09236452B2Publication Date: 2016-01-12
- Inventor: Kwan-Yong Lim , Jody Fronheiser , Christopher Prindle
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand-Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand-Cayman
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H01L29/66
- IPC: H01L29/66 ; H01L29/08

Abstract:
A method of forming raised S/D regions by partial EPI growth with a partial EPI liner therebetween and the resulting device are provided. Embodiments include forming groups of fins extending above a STI layer; forming a gate over the groups of fins; forming a gate spacer on each side of the gate; forming a raised S/D region proximate to each spacer on each fin of the groups of fins, each raised S/D region having a top surface, vertical sidewalls, and an undersurface; forming a liner over and between each raised S/D region; removing the liner from the top surface of each raised S/D region and from in between a group of fins; forming an overgrowth region on the top surface of each raised S/D region; forming an ILD over and between the raised S/D regions; and forming a contact through the ILD, down to the raised S/D regions.
Public/Granted literature
- US20150340471A1 RAISED SOURCE/DRAIN EPI WITH SUPPRESSED LATERAL EPI OVERGROWTH Public/Granted day:2015-11-26
Information query
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