Invention Grant
- Patent Title: Semiconductor capacitor and manufacturing method
- Patent Title (中): 半导体电容器及其制造方法
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Application No.: US11964509Application Date: 2007-12-26
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Publication No.: US07671446B2Publication Date: 2010-03-02
- Inventor: Hyung-Jin Park
- Applicant: Hyung-Jin Park
- Applicant Address: KR Seoul
- Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Sherr & Vaughn, PLLC
- Priority: KR10-2006-0137335 20061229
- Main IPC: H01L27/108
- IPC: H01L27/108

Abstract:
A capacitor can prevent a problem of step coverage in semiconductor device, caused by a thickness of an insulator film and an upper metal film included a metal-insulator-metal (MIM) capacitor, between the MIM capacitor region and its circumferential region. A capacitor in a semiconductor device includes a first metal film provided with a recess having a predetermined depth over a semiconductor substrate. An insulator film and a second metal film may be formed in the recess with a thickness corresponding to a depth of the recess. The insulator and second metal films are disconnected from an inner lateral side of the recess. A dielectric film including a plurality of plugs is in contact with the first and second metal films and the insulator film. A plurality of metal electrodes is in contact with the plugs over the dielectric film.
Public/Granted literature
- US20080157276A1 SEMICONDUCTOR CAPACITOR AND MANUFACTURING METHOD Public/Granted day:2008-07-03
Information query
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