发明授权
US07229843B2 Device and method for monitoring process exhaust gas, semiconductor manufacturing device, and system and method for controlling semiconductor manufacturing device
有权
用于监控工艺废气的装置和方法,半导体制造装置以及用于控制半导体制造装置的系统和方法
- 专利标题: Device and method for monitoring process exhaust gas, semiconductor manufacturing device, and system and method for controlling semiconductor manufacturing device
- 专利标题(中): 用于监控工艺废气的装置和方法,半导体制造装置以及用于控制半导体制造装置的系统和方法
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申请号: US11062470申请日: 2005-02-22
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公开(公告)号: US07229843B2公开(公告)日: 2007-06-12
- 发明人: Kiyoshi Komiyama , Takahiro Shimoda , Hiroshi Nishikawa
- 申请人: Kiyoshi Komiyama , Takahiro Shimoda , Hiroshi Nishikawa
- 申请人地址: JP Tokyo
- 专利权人: Tokyo Electron Limited
- 当前专利权人: Tokyo Electron Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Pillsbury Winthrop Shaw Pittman, LLP
- 优先权: JP11-303534 19991026; JP2000-297203 20000928
- 主分类号: H01L21/00
- IPC分类号: H01L21/00
摘要:
Process exhaust gas is sampled, and the components of the process exhaust gas are analyzed by a Fourier-transform infrared spectroscope (FT-IR) (26). The analysis result is compared with a reference analysis result obtained from an analysis of process exhaust gas generated in an operation performed under reference process conditions. If the amount of a gas component changes to an amount that is outside a predetermined range set around a reference value obtained from the reference analysis result, a signal indicating a process error is outputted. Instead of the output of the signal indicating a process error, the process conditions can be automatically adjusted.
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