JP2019201207A - 閉ループチャッキング力制御を用いたリアルタイム監視 - Google Patents
閉ループチャッキング力制御を用いたリアルタイム監視 Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01J37/32—Gas-filled discharge tubes
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- H10P72/06—Apparatus for monitoring, sorting, marking, testing or measuring
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- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
- H10P72/722—Details of electrostatic chucks
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- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P74/00—Testing or measuring during manufacture or treatment of wafers, substrates or devices
- H10P74/23—Testing or measuring during manufacture or treatment of wafers, substrates or devices characterised by multiple measurements, corrections, marking or sorting processes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/002—Cooling arrangements
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- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
- H01J2237/2007—Holding mechanisms
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- H—ELECTRICITY
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- H01J2237/245—Detection characterised by the variable being measured
- H01J2237/24571—Measurements of non-electric or non-magnetic variables
- H01J2237/24585—Other variables, e.g. energy, mass, velocity, time, temperature
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- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
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- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
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- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0418—Apparatus for fluid treatment for etching
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- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7604—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support
- H10P72/7612—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support characterised by lifting arrangements, e.g. lift pins
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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
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Abstract
【解決手段】この方法は、加工品を処理チャンバ内の静電チャックに配置することから開始する。プラズマが処理チャンバの中に与えられる。加工品にかかる撓み力が監視される。最小値のチャッキング電圧が加えられる。最小圧の裏側ガス圧が加えられる。チャッキング電圧および/または裏側ガス圧力は、撓み力が閾値未満になるように調整される。また、チャッキング電圧および裏側ガス圧は同時に引き上げられる。
【選択図】図1
Description
センサ280は、加工品101の撓みの変化を短い時間間隔で測定することができる。
702 第2の時間ブロック
703 第3の時間ブロック
704 第4の時間ブロック
705 第5の時間ブロック
706 第6の時間ブロック
707 第7の時間ブロック
708 第8の時間ブロック
740 チャッキング電圧
741 最小チャッキング電圧
742 チャッキング最小電圧
749 加工品を処理する、および/または加工品をESCに静電的に保持するのに適切なレベル
760 裏側ガス圧
762 最小ガス圧
763 裏側ガス最小圧
769 高い圧力
780 撓み力
Claims (11)
- プラズマ処理チャンバ内の静電チャック上に配置された加工品にかかるチャッキング力を最小限にする方法であって、
処理チャンバ内の静電チャック上に加工品を配置するステップと、
前記処理チャンバの中にプラズマを与えるステップと、
前記加工品にかかる撓み力を監視するステップと、
最小値のチャッキング電圧を加えるステップと、
最小圧の裏側ガス圧を加えるステップと、
前記撓み力が閾値未満になるように前記チャッキング電圧および/または裏側ガス圧を調整するステップと、
前記チャッキング電圧および前記裏側ガス圧を同時に引き上げるステップとを含む、方法。 - チャッキング解除のために前記方法を逆にするステップをさらに含む、請求項1に記載の方法。
- 前記チャッキング電圧力の最小値が前記裏側ガス圧の最小値未満である、請求項1に記載の方法。
- 前記加工品がチャッキングされるときに、前記裏側ガス圧の値が前記チャッキング電圧力の値未満である、請求項1に記載の方法。
- 前記撓み力が約50ミリトルから約50トルの間である、請求項1に記載の方法。
- 前記撓み力が約1トル以下である、請求項5に記載の方法。
- 前記プラズマを前記与えるステップと前記加工品を前記チャッキングするステップとの間に小さな時間遅延を導入するステップをさらに含む、請求項1に記載の方法。
- 前記小さな時間遅延が約200ミリ秒から約10秒の間である、請求項7に記載の方法。
- 前記チャッキング力および裏側ガス圧の閉ループ制御を設けるステップと、
前記閉ループ制御に応じて前記チャッキング力を最小限にするステップとをさらに含む、請求項1に記載の方法。 - クランプ力が目標合計クランプ力に到達し維持されるように、前記ESCへのクランプ電圧を調整するステップをさらに含む、請求項1に記載の方法。
- 前記最小値の前記チャッキング電圧を加えるステップがさらに、
最小力を得るように前記チャッキング電圧を選択するステップを含む、請求項1に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762506313P | 2017-05-15 | 2017-05-15 | |
| US15/979,787 US10460916B2 (en) | 2017-05-15 | 2018-05-15 | Real time monitoring with closed loop chucking force control |
| US15/979,787 | 2018-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019201207A true JP2019201207A (ja) | 2019-11-21 |
| JP7362293B2 JP7362293B2 (ja) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2019091811A Active JP7362293B2 (ja) | 2017-05-15 | 2019-05-15 | 閉ループチャッキング力制御を用いたリアルタイム監視 |
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| Country | Link |
|---|---|
| US (1) | US10460916B2 (ja) |
| JP (1) | JP7362293B2 (ja) |
| KR (1) | KR102670418B1 (ja) |
| CN (1) | CN110491756B (ja) |
| TW (1) | TWI815889B (ja) |
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| JP2018530150A (ja) * | 2015-09-11 | 2018-10-11 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | リアルタイムの力および膜応力制御を備えた基板支持体 |
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| US8422193B2 (en) * | 2006-12-19 | 2013-04-16 | Axcelis Technologies, Inc. | Annulus clamping and backside gas cooled electrostatic chuck |
| US8313612B2 (en) * | 2009-03-24 | 2012-11-20 | Lam Research Corporation | Method and apparatus for reduction of voltage potential spike during dechucking |
| US9287092B2 (en) * | 2009-05-01 | 2016-03-15 | Advanced Energy Industries, Inc. | Method and apparatus for controlling ion energy distribution |
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| JP2001351968A (ja) * | 2000-06-07 | 2001-12-21 | Mitsubishi Electric Corp | プラズマ処理装置およびプラズマ処理方法 |
| US20150138687A1 (en) * | 2013-11-19 | 2015-05-21 | Applied Materials, Inc. | Control systems employing deflection sensors to control clamping forces applied by electrostatic chucks, and related methods |
| JP2016139649A (ja) * | 2015-01-26 | 2016-08-04 | 住友大阪セメント株式会社 | 静電チャック装置 |
| JP2018530150A (ja) * | 2015-09-11 | 2018-10-11 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | リアルタイムの力および膜応力制御を備えた基板支持体 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2024507507A (ja) * | 2021-02-25 | 2024-02-20 | アプライド マテリアルズ インコーポレイテッド | プロセスシフトが発生した場合に調整されたチャッキング電圧を使用してチャッキング動作を実行するための方法、システム、及び装置 |
| JP7716486B2 (ja) | 2021-02-25 | 2025-07-31 | アプライド マテリアルズ インコーポレイテッド | プロセスシフトが発生した場合に調整されたチャッキング電圧を使用してチャッキング動作を実行するための方法、システム、及び装置 |
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| KR20190130971A (ko) | 2019-11-25 |
| TW201947702A (zh) | 2019-12-16 |
| US10460916B2 (en) | 2019-10-29 |
| CN110491756A (zh) | 2019-11-22 |
| KR102670418B1 (ko) | 2024-05-28 |
| CN110491756B (zh) | 2024-03-29 |
| TWI815889B (zh) | 2023-09-21 |
| JP7362293B2 (ja) | 2023-10-17 |
| US20180330926A1 (en) | 2018-11-15 |
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