JP4945267B2 - 電子顕微鏡 - Google Patents
電子顕微鏡 Download PDFInfo
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- JP4945267B2 JP4945267B2 JP2007049930A JP2007049930A JP4945267B2 JP 4945267 B2 JP4945267 B2 JP 4945267B2 JP 2007049930 A JP2007049930 A JP 2007049930A JP 2007049930 A JP2007049930 A JP 2007049930A JP 4945267 B2 JP4945267 B2 JP 4945267B2
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- foreign matter
- electron beam
- excitation current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
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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
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
- H01J37/10—Lenses
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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
- H01J37/02—Details
- H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
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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
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/261—Details
- H01J37/265—Controlling the tube; circuit arrangements adapted to a particular application not otherwise provided, e.g. bright-field-dark-field illumination
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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
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/28—Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams
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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
- H01J2237/02—Details
- H01J2237/022—Avoiding or removing foreign or contaminating particles, debris or deposits on sample or tube
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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
- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
- H01J2237/204—Means for introducing and/or outputting objects
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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
- H01J2237/26—Electron or ion microscopes
- H01J2237/28—Scanning microscopes
- H01J2237/2813—Scanning microscopes characterised by the application
- H01J2237/2817—Pattern inspection
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Description
31内を移動してウェーハ8の電子顕微鏡観察を行う。
40先端部の電極表面に異物が付着する問題が生じる。
2,3 2次電子
4 陰極
5 コンデンサレンズ
6 対物レンズ
7 走査偏向器
8 試料(ウェーハ)
9 試料ステージ
10 変換電極
11 2次電子検出器
20 制御部
30 ロードロック室
31 真空試料室
32 ゲートバルブ
40 加速円筒
Claims (6)
- 電子源と、
当該電子源から放出された電子ビームを集束する対物レンズと、
前記対物レンズの励磁電流を制御する制御装置を備えた電子顕微鏡において、
前記制御装置は、
前記電子ビームによる測定対象試料が、前記対物レンズ下であって、前記対物レンズを励磁すると異物が付着する前記対物レンズの部分の下より離間したときに、
前記対物レンズの励磁電流をオフ、或いは前記測定対象試料を走査するときと比較して弱電流となるように、前記励磁電流を制御することを特徴とする電子顕微鏡。 - 請求項1において、
前記制御装置は、
所定の時間ごと、及び/又は所定の試料数ごとに、前記対物レンズの励磁電流をオフ、或いは弱励磁とする制御を行うことを特徴とする電子顕微鏡。 - 請求項1において、
前記制御装置は、
異物検査装置にて、所定の異物数が検出された場合に、前記対物レンズの励磁電流をオフ、或いは弱励磁とする制御を行うことを特徴とする電子顕微鏡。 - 請求項1において、
前記集束された電子ビームが照射される試料が配置される真空室と、
当該真空室に試料を導入するときに、
試料空間を予備排気するロードロック室と、
当該真空室とロードロック室との間に配置されるゲートバルブを備え、
前記制御装置は、前記ゲートバルブの開放に併せて、前記対物レンズの励磁電流をオフ、或いは弱励磁となるように制御することを特徴とする電子顕微鏡。 - 請求項1において、
前記電子ビームを、前記対物レンズ通過時に加速させる加速円筒を備え、前記制御装置は、前記対物レンズの励磁電流をオフ、或いは弱励磁としたときに、前記加速円筒への印加電圧を、オフ、或いは前記測定対象試料を走査するときと比較して低電圧となるように制御することを特徴とする電子顕微鏡。 - 対物レンズを用いて集束した電子ビームを試料上で走査して、試料の測定を行う電子ビームを用いた試料測定方法において、
前記対物レンズ下であって、
前記対物レンズを励磁すると異物が付着する前記対物レンズの部分の下から、
前記試料が離脱したときに、前記対物レンズの励磁電流をオフ、或いは弱電磁とすることによって、前記対物レンズの部分に付着した異物を落下させることを特徴とする試料測定方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007049930A JP4945267B2 (ja) | 2007-02-28 | 2007-02-28 | 電子顕微鏡 |
US12/038,076 US7626166B2 (en) | 2007-02-28 | 2008-02-27 | Electron microscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007049930A JP4945267B2 (ja) | 2007-02-28 | 2007-02-28 | 電子顕微鏡 |
Publications (2)
Publication Number | Publication Date |
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JP2008218015A JP2008218015A (ja) | 2008-09-18 |
JP4945267B2 true JP4945267B2 (ja) | 2012-06-06 |
Family
ID=39714814
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007049930A Active JP4945267B2 (ja) | 2007-02-28 | 2007-02-28 | 電子顕微鏡 |
Country Status (2)
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US (1) | US7626166B2 (ja) |
JP (1) | JP4945267B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061738A1 (ja) * | 2012-10-18 | 2014-04-24 | 株式会社 日立ハイテクノロジーズ | 荷電粒子線装置内の異物除去方法、及び荷電粒子線装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0790217B2 (ja) * | 1991-05-20 | 1995-10-04 | チュラルテック株式会社 | 浄水器 |
JP4945267B2 (ja) * | 2007-02-28 | 2012-06-06 | 株式会社日立ハイテクノロジーズ | 電子顕微鏡 |
JP5066056B2 (ja) * | 2008-10-31 | 2012-11-07 | 株式会社日立ハイテクノロジーズ | 試料観察方法、及び電子顕微鏡 |
KR101842101B1 (ko) * | 2010-08-03 | 2018-03-26 | 가부시키가이샤 에바라 세이사꾸쇼 | 이물질 부착 방지 기능을 구비한 전자선 검사 장치 및 방법 |
KR101914231B1 (ko) * | 2012-05-30 | 2018-11-02 | 삼성디스플레이 주식회사 | 주사 전자 현미경을 이용한 검사 시스템 |
CN110376229B (zh) * | 2019-06-12 | 2020-09-04 | 聚束科技(北京)有限公司 | 具备复合式探测系统的扫描电子显微镜和样品探测方法 |
JP7054711B2 (ja) * | 2020-01-23 | 2022-04-14 | 日本電子株式会社 | 荷電粒子線装置および荷電粒子線装置の調整方法 |
CN113758955A (zh) * | 2020-06-01 | 2021-12-07 | 宸鸿科技(厦门)有限公司 | 利用扫描式电子显微镜观测表面不含导电层的样品的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59181448A (ja) * | 1983-03-31 | 1984-10-15 | Jeol Ltd | 電子顕微鏡 |
JPH07243834A (ja) * | 1994-03-01 | 1995-09-19 | Toshiba Corp | 電子ビーム検査方法及びその装置 |
JP3966350B2 (ja) | 1995-10-19 | 2007-08-29 | 株式会社日立製作所 | 走査形電子顕微鏡 |
JP3429988B2 (ja) | 1997-10-30 | 2003-07-28 | 株式会社日立製作所 | 走査電子顕微鏡 |
JP4305421B2 (ja) * | 2001-07-12 | 2009-07-29 | 株式会社日立製作所 | 電子ビームの調整方法,荷電粒子光学系制御装置、及び走査電子顕微鏡 |
JP3968334B2 (ja) * | 2002-09-11 | 2007-08-29 | 株式会社日立ハイテクノロジーズ | 荷電粒子線装置及び荷電粒子線照射方法 |
JP2006140070A (ja) | 2004-11-15 | 2006-06-01 | Hitachi High-Technologies Corp | 荷電粒子線装置 |
JP2006277996A (ja) * | 2005-03-28 | 2006-10-12 | Ebara Corp | 電子線装置及び該装置を用いたデバイス製造方法 |
JP4945267B2 (ja) * | 2007-02-28 | 2012-06-06 | 株式会社日立ハイテクノロジーズ | 電子顕微鏡 |
-
2007
- 2007-02-28 JP JP2007049930A patent/JP4945267B2/ja active Active
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2008
- 2008-02-27 US US12/038,076 patent/US7626166B2/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061738A1 (ja) * | 2012-10-18 | 2014-04-24 | 株式会社 日立ハイテクノロジーズ | 荷電粒子線装置内の異物除去方法、及び荷電粒子線装置 |
KR20150053973A (ko) | 2012-10-18 | 2015-05-19 | 가부시키가이샤 히다치 하이테크놀로지즈 | 하전 입자선 장치 내의 이물질 제거 방법 및 하전 입자선 장치 |
US9368319B2 (en) | 2012-10-18 | 2016-06-14 | Hitachi High-Technologies Corporation | Method for removing foreign substances in charged particle beam device, and charged particle beam device |
Also Published As
Publication number | Publication date |
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JP2008218015A (ja) | 2008-09-18 |
US7626166B2 (en) | 2009-12-01 |
US20080203301A1 (en) | 2008-08-28 |
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