发明授权
- 专利标题: Semiconductor capacitor and manufacturing method
- 专利标题(中): 半导体电容器及其制造方法
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申请号: US11964509申请日: 2007-12-26
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公开(公告)号: US07671446B2公开(公告)日: 2010-03-02
- 发明人: Hyung-Jin Park
- 申请人: Hyung-Jin Park
- 申请人地址: KR Seoul
- 专利权人: Dongbu HiTek Co., Ltd.
- 当前专利权人: Dongbu HiTek Co., Ltd.
- 当前专利权人地址: KR Seoul
- 代理机构: Sherr & Vaughn, PLLC
- 优先权: KR10-2006-0137335 20061229
- 主分类号: H01L27/108
- IPC分类号: H01L27/108
摘要:
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.
公开/授权文献
- US20080157276A1 SEMICONDUCTOR CAPACITOR AND MANUFACTURING METHOD 公开/授权日:2008-07-03
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