Invention Application
- Patent Title: DUAL CHANNEL FINFETS HAVING UNIFORM FIN HEIGHTS
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Application No.: US15811821Application Date: 2017-11-14
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Publication No.: US20180240714A1Publication Date: 2018-08-23
- Inventor: Zhenxing Bi , Kangguo Cheng , Peng Xu , Jie Yang
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Main IPC: H01L21/8238
- IPC: H01L21/8238 ; H01L29/66 ; H01L29/78 ; H01L29/36 ; H01L21/306 ; H01L27/092 ; H01L21/308

Abstract:
A method of making a semiconductor device including forming a first blanket layer on a substrate; forming a second blanket layer on the first blanket layer; patterning a first fin of a first transistor region and a second fin of a second transistor region in the first blanket layer and the second blanket layer; depositing a mask on the second transistor region; removing the first fin to form a trench; growing a first semiconductor layer in the trench where the first fin was removed; and growing a second semiconductor layer on the first semiconductor layer.
Public/Granted literature
- US10546788B2 Dual channel FinFETs having uniform fin heights Public/Granted day:2020-01-28
Information query
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