发明授权
US07811941B1 Device and method for etching a substrate using an inductively coupled plasma
有权
使用电感耦合等离子体蚀刻衬底的装置和方法
- 专利标题: Device and method for etching a substrate using an inductively coupled plasma
- 专利标题(中): 使用电感耦合等离子体蚀刻衬底的装置和方法
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申请号: US09762985申请日: 2000-06-06
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公开(公告)号: US07811941B1公开(公告)日: 2010-10-12
- 发明人: Volker Becker , Franz Laermer , Andrea Schilp
- 申请人: Volker Becker , Franz Laermer , Andrea Schilp
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 代理机构: Kenyon & Kenyon LLP
- 优先权: DE19933842 19990720
- 国际申请: PCT/DE00/01835 WO 20000606
- 国际公布: WO01/06539 WO 20010125
- 主分类号: H01L21/311
- IPC分类号: H01L21/311 ; C03C15/00
摘要:
A method and a device suitable for implementing this method for etching a substrate (10), a silicon body in particular, using an inductively coupled plasma (14) are proposed. For this purpose, a radio-frequency electromagnetic alternating field is generated with an ICP source (13), the alternating field generating an inductively coupled plasma (14) of reactive particles in a reactor (15). The inductively coupled plasma (14) arises by the action of the radio-frequency electromagnetic alternating field on a reactive gas. Furthermore, a device is provided with which a plasma power injected into the inductively coupled plasma (14) via the radio-frequency electromagnetic alternating field with the ICP source (13) is capable of being pulsed so that at least from time to time a pulsed radio-frequency power can be injected into the inductively coupled plasma (14) as a pulsed radio-frequency power. In addition, the pulsed plasma power can be combined or correlated with a pulsed magnetic field and/or a pulsed substrate electrode power.
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