Invention Grant
- Patent Title: Contact area structure and method for manufacturing the same
- Patent Title (中): 接触面积结构及其制造方法
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Application No.: US15053106Application Date: 2016-02-25
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Publication No.: US09576901B1Publication Date: 2017-02-21
- Inventor: Hsueh-Chung Chen , Su Chen Fan , Chih-Chao Yang
- 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
- Agency: Ryan, Mason & Lewis, LLP
- Agent Vazken Alexanian
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L23/528 ; H01L21/768 ; H01L23/522 ; H01L23/532

Abstract:
A method for manufacturing a semiconductor device includes forming a contact area opening in a dielectric structure, depositing a contact area metal in the contact area opening, forming a metal cap layer on the contact area metal, forming one or more dielectric layers on the metal cap layer, forming one or more hard mask layers on the one or more dielectric layers, forming a metallization opening through the one or more dielectric and hard mask layers, wherein the metallization opening exposes the metal cap layer, removing the one or more hard mask layers, and forming a metallization layer in the metallization opening on the metal cap layer.
Information query
IPC分类: