JP2018078250A - マルチ荷電粒子ビーム描画装置 - Google Patents
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- 238000002039 particle-beam lithography Methods 0.000 title abstract 3
- 238000007689 inspection Methods 0.000 claims abstract description 85
- 230000007547 defect Effects 0.000 claims abstract description 65
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- 229910052697 platinum Inorganic materials 0.000 description 1
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- G03F1/20—Masks or mask blanks for imaging by charged particle beam [CPB] radiation, e.g. by electron beam; Preparation thereof
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- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
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Abstract
【解決手段】本実施形態によるマルチ荷電粒子ビーム描画装置は、マルチビームを形成するアパーチャ部材8と、マルチビームの各ビームのオンオフを切り替えるブランカが配置されたブランキングアパーチャアレイ10と、描画対象の基板24が載置され、XY方向に移動可能なステージ22と、ステージ22に設けられ、マルチビームのうち1本のビームを通過させる検査アパーチャ40と、マルチビームを偏向する偏向器18と、前記マルチビームを検査アパーチャ40上でXY方向にスキャンして検査アパーチャ40を通過した前記マルチビームの各ビームのビーム電流を検出する電流検出器50と、検出されたビーム電流に基づいてビーム画像を作成し、前記ビーム画像に基づき、ブランキングアパーチャアレイ10又はアパーチャ部材8における欠陥を検出する制御計算機32と、を備える。
【選択図】図1
Description
4 電子銃
6 照明レンズ
8 アパーチャ部材
10 ブランキングアパーチャアレイ
12 縮小レンズ
14 制限アパーチャ部材
16 対物レンズ
18 偏向器
20 描画室
22 XYステージ
32 制御計算機
34 制御回路
40 マルチビーム検査用アパーチャ(検査アパーチャ)
41 散乱層
43 吸収層
50 電流検出器
60 ビームアレイ認識部
62 欠陥種判定部
64 欠陥マップ作成部
66 ショットデータ生成部
Claims (5)
- 複数の穴が形成され、前記複数の穴を荷電粒子ビームが通過することによりマルチビームを形成するアパーチャ部材と、
前記マルチビームのうち、それぞれ対応するビームのオンオフを切り替える複数のブランカが配置されたブランキングアパーチャアレイと、
描画対象の基板が載置され、XY方向に移動可能なステージと、
前記ステージに設けられ、前記マルチビームのうち1本のビームを通過させる検査アパーチャと、
前記マルチビームを偏向する偏向器と、
前記マルチビームを前記検査アパーチャ上でXY方向にスキャンして前記検査アパーチャを通過した前記マルチビームの各ビームのビーム電流を検出する電流検出器と、
検出されたビーム電流に基づいてビーム画像を作成し、前記ビーム画像に基づき、前記ブランキングアパーチャアレイ又は前記アパーチャ部材における欠陥を検出する制御計算機と、
を備えるマルチ荷電粒子ビーム描画装置。 - 前記ブランキングアパーチャアレイを複数の検査領域に分割し、検査領域単位で、前記検査アパーチャのスキャンを行うことを特徴とする請求項1に記載のマルチ荷電粒子ビーム描画装置。
- 前記制御計算機は、前記ビーム画像において、前記検査領域に対応するビームアレイ領域の認識を行うことを特徴とする請求項2に記載のマルチ荷電粒子ビーム描画装置。
- 前記ブランカにより偏向されなかったビームが前記基板に照射される通常モード、又は前記ブランカにより偏向されたビームが前記基板に照射される反転モードに動作モードを切り替えるアライメントコイルをさらに備え、
前記ブランカによる偏向の有無と、前記動作モードとを切り替えて前記検査アパーチャを複数回スキャンし、各スキャンにおいて検出されたビーム電流に基づいて作成されたビーム画像を比較し、欠陥種類を判定することを特徴とする請求項1乃至3のいずれかに記載のマルチ荷電粒子ビーム描画装置。 - 前記制御計算機は、前記ビーム画像における各ビームの階調に基づいて、前記アパーチャ部材に形成された穴の開口ばらつきを判定することを特徴とする請求項1乃至4のいずれかに記載のマルチ荷電粒子ビーム描画装置。
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JP2016220801A JP2018078250A (ja) | 2016-11-11 | 2016-11-11 | マルチ荷電粒子ビーム描画装置 |
TW106134332A TWI675261B (zh) | 2016-11-11 | 2017-10-05 | 多帶電粒子束描繪裝置及多帶電粒子束描繪方法 |
KR1020170144676A KR102057929B1 (ko) | 2016-11-11 | 2017-11-01 | 멀티 하전 입자 빔 묘화 장치 및 멀티 하전 입자 빔 묘화 방법 |
US15/806,564 US10504696B2 (en) | 2016-11-11 | 2017-11-08 | Multi charged particle beam writing apparatus and multi charged particle beam writing method |
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JP (1) | JP2018078250A (ja) |
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EP2069496A4 (en) | 2007-07-17 | 2010-01-27 | Somalogic Inc | SELEX AND PHOTOSELEX ENHANCED |
US10157723B2 (en) * | 2016-08-03 | 2018-12-18 | Nuflare Technology, Inc. | Multi charged particle beam writing apparatus and method of adjusting the same |
DE102017208005B3 (de) * | 2017-05-11 | 2018-08-16 | Carl Zeiss Microscopy Gmbh | Teilchenquelle zur Erzeugung eines Teilchenstrahls und teilchenoptische Vorrichtung |
JP2019220559A (ja) * | 2018-06-19 | 2019-12-26 | 株式会社ニューフレアテクノロジー | マルチ荷電粒子ビーム描画装置及びそのビーム評価方法 |
CN116999722A (zh) * | 2019-11-07 | 2023-11-07 | 中硼(厦门)医疗器械有限公司 | 射束照射系统及其控制方法 |
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KR102057929B1 (ko) | 2019-12-20 |
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TW201830149A (zh) | 2018-08-16 |
US10504696B2 (en) | 2019-12-10 |
US20180138012A1 (en) | 2018-05-17 |
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