Invention Grant
- Patent Title: Complex circuits utilizing fin structures
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Application No.: US14805529Application Date: 2015-07-22
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Publication No.: US09318489B2Publication Date: 2016-04-19
- Inventor: Kangguo Cheng , Bruce B. Doris , Ali Khakifirooz , Kern Rim
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Michael J. DiCato; Bryan Bortnick
- Main IPC: H01L27/088
- IPC: H01L27/088 ; H01L21/02 ; H01L21/8234 ; H01L29/16 ; H01L29/78

Abstract:
A method of forming a semiconductor structure includes forming a multilayer lattice matched structure having an unstrained layer, a first strained layer, and a second strained layer formed between the unstrained and the first strained layer. A first opening in the multilayer structure is etched and a second strained fill material having a same material as the second strained layer is deposited. A second opening in the multilayer structure is etched and an unstrained fill material having a same material as the unstrained layer is deposited. A first strained fill material having a same material as the first strained layer is then deposited between the unstrained fill and the second strained fill. A second strained fin is formed from the deposited second strained fill material, a first strained fin is formed from the deposited first strained fill material, and an unstrained fin is formed from the deposited unstrained fill material.
Public/Granted literature
- US20150340364A1 COMPLEX CIRCUITS UTILIZING FIN STRUCTURES Public/Granted day:2015-11-26
Information query
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