JP5629690B2 - 半定量的な厚さの決定 - Google Patents
半定量的な厚さの決定 Download PDFInfo
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- JP5629690B2 JP5629690B2 JP2011536421A JP2011536421A JP5629690B2 JP 5629690 B2 JP5629690 B2 JP 5629690B2 JP 2011536421 A JP2011536421 A JP 2011536421A JP 2011536421 A JP2011536421 A JP 2011536421A JP 5629690 B2 JP5629690 B2 JP 5629690B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/005—Control means for lapping machines or devices
- B24B37/013—Devices or means for detecting lapping completion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
- H01L22/26—Acting in response to an ongoing measurement without interruption of processing, e.g. endpoint detection, in-situ thickness measurement
Description
Claims (13)
- 基板から反射した光の最初のスペクトルを測定するステップと、
前記最初のスペクトル内の選択されたピークを識別し、前記最初のスペクトル内の前記選択されたピークの最初の波長又は最初の幅を決定するステップと、
研磨パッドで前記基板を研磨するステップと、
光源からの光を前記基板に照射するステップと、
プロセッサを用いて、前記基板が研磨されている間に前記基板の表面から反射した前記光の現在のスペクトルを測定するステップと、
前記プロセッサを用いて、前記現在のスペクトル内の前記選択されたピークを識別し、前記現在のスペクトル内の前記選択されたピークの現在の波長又は現在の幅を決定するステップと、
前記最初の波長又は最初の幅と前記現在の波長又は現在の幅との差をそれぞれ決定するステップと、
前記プロセッサを用いて、前記差に関連するパラメータの値をルックアップテーブルから決定するステップと、
コントローラを用いて、前記パラメータの値に応じて、前記基板の前記研磨を変更するステップと
を含む方法。 - 基板を研磨するステップが、前記基板の前記表面上のある量の膜を除去することを含み、前記パラメータが前記膜の厚さである、請求項1に記載の方法。
- 前記研磨に関連するプロセスが、シャロートレンチ分離プロセスまたは層間絶縁膜プロセスである、請求項1または2に記載の方法。
- 前記最初の波長と前記現在の波長との差を決定するステップを含む、請求項1に記載の方法。
- 前記最初の幅と前記現在の幅との差を決定するステップを含む、請求項1に記載の方法。
- コンピュータで読み取り可能な媒体上で有形に具現化されたコンピュータプログラム製品であって、
基板から反射した光の最初のスペクトルを測定する動作と、
前記最初のスペクトル内の選択されたピークを識別し、前記最初のスペクトル内の前記選択されたピークの最初の波長又は最初の幅を決定する動作と、
基板が研磨されている間に前記基板の表面から反射した、光源からの光の現在のスペクトルを測定する動作と、
前記現在のスペクトル内の前記選択されたピークを識別し、前記現在のスペクトル内の前記選択されたピークの現在の波長又は現在の幅を決定する動作と、
前記最初の波長又は最初の幅と前記現在の波長又は現在の幅との差をそれぞれ決定する動作と、
前記差に関連するパラメータの値をルックアップテーブルから決定する動作と、
前記パラメータの前記値に応じて、前記基板の前記研磨を変更する動作と
を研磨システムに行わせる命令を含むコンピュータプログラム製品。 - 前記パラメータが前記基板の前記表面上の膜の厚さである、請求項6に記載のコンピュータプログラム製品。
- 前記差は、前記最初の波長と前記現在の波長との差である、請求項6に記載のコンピュータ製品。
- 前記差は、前記最初の幅と前記現在の幅との差である、請求項6に記載のコンピュータ製品。
- 基板を研磨するように構成された研磨パッドと、
光を前記基板に照射するように構成された光源と、
前記基板から反射された光からのスペクトルを取得するように構成されたin−situ光学監視システムと、
差およびパラメータの値を含むルックアップテーブルを記憶するように構成されたコンピュータで読み取り可能な記憶媒体と、
前記パラメータの値に基づいて、前記基板の前記研磨を変更するように構成されたコントローラと、
基板を研磨する前に前記光学監視システムから最初のスペクトルを受け取り、前記最初のスペクトル内に選択されたピークを識別し、前記最初のスペクトル内の前記選択されたピークの最初の波長又は最初の幅を決定し、研磨中に、前記光学監視システムから現在のスペクトルを受け取り、前記現在のスペクトル内の前記選択されたピークを識別し、前記現在のスペクトル内の前記選択されたピークの現在の波長又は現在の幅を決定し、前記最初の波長又は最初の幅と前記現在の波長又は現在の幅との差をそれぞれ決定し、前記差に関連する前記パラメータの値を前記ルックアップテーブルから決定するように構成されたプロセッサと
を備える装置。 - 前記パラメータが前記基板の表面上の膜の厚さである、請求項10に記載の装置。
- 前記差は、前記最初の波長と前記現在の波長との差である、請求項10に記載の装置。
- 前記差は、前記最初の幅と前記現在の幅との差である、請求項10に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/271,674 US8352061B2 (en) | 2008-11-14 | 2008-11-14 | Semi-quantitative thickness determination |
US12/271,674 | 2008-11-14 | ||
PCT/US2009/063913 WO2010056679A2 (en) | 2008-11-14 | 2009-11-10 | Semi-quantitative thickness determination |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012508982A JP2012508982A (ja) | 2012-04-12 |
JP5629690B2 true JP5629690B2 (ja) | 2014-11-26 |
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JP2011536421A Active JP5629690B2 (ja) | 2008-11-14 | 2009-11-10 | 半定量的な厚さの決定 |
Country Status (4)
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US (2) | US8352061B2 (ja) |
JP (1) | JP5629690B2 (ja) |
KR (1) | KR101530950B1 (ja) |
WO (1) | WO2010056679A2 (ja) |
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KR101861834B1 (ko) | 2009-11-03 | 2018-05-28 | 어플라이드 머티어리얼스, 인코포레이티드 | 시간에 대한 스펙트럼들 등고선 플롯들의 피크 위치를 이용한 종료점 방법 |
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