JP2016134530A - 加工制御装置、加工制御プログラムおよび加工制御方法 - Google Patents
加工制御装置、加工制御プログラムおよび加工制御方法 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32917—Plasma diagnostics
- H01J37/32926—Software, data control or modelling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32917—Plasma diagnostics
- H01J37/32935—Monitoring and controlling tubes by information coming from the object and/or discharge
- H01J37/32972—Spectral analysis
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- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/06—Apparatus for monitoring, sorting, marking, testing or measuring
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- H10P74/23—Testing or measuring during manufacture or treatment of wafers, substrates or devices characterised by multiple measurements, corrections, marking or sorting processes
- H10P74/238—Testing or measuring during manufacture or treatment of wafers, substrates or devices characterised by multiple measurements, corrections, marking or sorting processes comprising acting in response to an ongoing measurement without interruption of processing, e.g. endpoint detection or in-situ thickness measurement
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
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- H10W10/17—Isolation regions comprising dielectric materials formed using trench refilling with dielectric materials, e.g. shallow trench isolations
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Abstract
【解決手段】実施形態の加工制御装置は、発光量算出部と、処理制御部と、を備えている。前記発光量算出部は、基板に対してプラズマを用いたドライエッチング加工が実行されている間に発生した光の中から所定波長の光を選択する。そして、前記処理制御部は、選択した光の発光強度を前記選択した光の検出された時間で積分した積分値を算出する。さらに、前記処理制御部は、前記積分値の合計値を前記基板での合計発光量として算出する。また、前記処理制御部は、前記合計発光量が所定の基準値に到達した場合に、前記ドライエッチング加工を停止させる指示を出力する。
【選択図】図2
Description
図1は、実施形態に係るドライエッチング装置の構成を示す図である。ドライエッチング装置1は、加工部9と、制御装置(加工制御装置)10とを備えている。ドライエッチング装置1は、ウェハWaなどの基板にドライエッチング加工を行う装置である。本実施形態のドライエッチング装置1は、エッチング時の発光強度に基づいて、エッチング量を制御する。
(1)被エッチング膜の種類
(2)エッチングガスの種類
(3)エッチング時のTCP(Transformer Coupled Plasma)パワー
(4)エッチング時のバイアスパワー
(5)エッチング時のチャンバ2内の圧力
(6)エッチング時のガス流量
(7)エッチング時のデューティサイクル
(8)ウェハWaの開口率
TCP Power:700W
Bias Voltage:650W
Cl2:100sccm
O2:0〜10sccm
圧力:15mTorr
デューティサイクル:15〜30%
Claims (5)
- 基板に対してプラズマを用いたドライエッチング加工が実行されている間に発生した光の中から所定波長の光を選択し、選択した光の発光強度を前記選択した光の検出された時間で積分した積分値を算出し、前記積分値の合計値を前記基板での合計発光量として算出する発光量算出部と、
前記合計発光量が所定の基準値に到達した場合に、前記ドライエッチング加工を停止させる指示を出力する処理制御部と、
を備えることを特徴とする加工制御装置。 - 前記発光量算出部は、前記基板上でマスクパターンの下層側に配置された被エッチング膜が加工されている間に発生する光を前記所定波長の光として選択する、
ことを特徴とする請求項1に記載の加工制御装置。 - 前記発光量算出部は、前記被エッチング膜の種類および前記ドライエッチング加工の際に用いられるガスの種類に応じた波長の光を、前記所定波長の光として選択する、
ことを特徴とする請求項1に記載の加工制御装置。 - 基板に対してプラズマを用いたドライエッチング加工が実行されている間に発生した光の中から所定波長の光を選択し、選択した光の発光強度を前記選択した光の検出された時間で積分した積分値を算出し、前記積分値の合計値を前記基板での合計発光量として算出する発光量算出ステップと、
前記合計発光量が所定の基準値に到達した場合に、前記ドライエッチング加工を停止させる指示を出力する処理制御ステップと、
をコンピュータに実行させることを特徴とする加工制御プログラム。 - 基板に対してプラズマを用いたドライエッチング加工が実行されている間に発生した光の中から所定波長の光を選択する選択ステップと、
選択した光の発光強度を前記選択した光の検出された時間で積分した積分値を算出する積分値算出ステップと、
前記積分値の合計値を前記基板での合計発光量として算出する合計発光量算出ステップと、
前記合計発光量が所定の基準値に到達した場合に、前記ドライエッチング加工を停止させる指示を出力する出力ステップと、
を含むことを特徴とする加工制御方法。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2015008834A JP2016134530A (ja) | 2015-01-20 | 2015-01-20 | 加工制御装置、加工制御プログラムおよび加工制御方法 |
| US14/657,581 US9859103B2 (en) | 2015-01-20 | 2015-03-13 | Process control device, recording medium, and process control method |
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