JP7161053B2 - 荷電粒子線装置 - Google Patents
荷電粒子線装置 Download PDFInfo
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- JP7161053B2 JP7161053B2 JP2021529606A JP2021529606A JP7161053B2 JP 7161053 B2 JP7161053 B2 JP 7161053B2 JP 2021529606 A JP2021529606 A JP 2021529606A JP 2021529606 A JP2021529606 A JP 2021529606A JP 7161053 B2 JP7161053 B2 JP 7161053B2
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- electrode
- charged particle
- boosting
- sample
- objective lens
- Prior art date
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- 239000002245 particle Substances 0.000 title claims description 41
- 239000000696 magnetic material Substances 0.000 claims description 12
- 238000010894 electron beam technology Methods 0.000 description 37
- 230000003287 optical effect Effects 0.000 description 18
- 230000004075 alteration Effects 0.000 description 12
- 230000005684 electric field Effects 0.000 description 8
- 239000012212 insulator Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Images
Classifications
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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 or ion-optical arrangement
- H01J37/10—Lenses
- H01J37/14—Lenses magnetic
- H01J37/141—Electromagnetic lenses
-
- 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 or ion-optical arrangement
- H01J37/10—Lenses
- H01J37/145—Combinations of electrostatic and magnetic lenses
-
- 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
- H01J37/244—Detectors; Associated components or circuits therefor
-
- 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
- H01J2237/04—Means for controlling the discharge
- H01J2237/047—Changing particle velocity
- H01J2237/0473—Changing particle velocity accelerating
- H01J2237/04735—Changing particle velocity accelerating with electrostatic means
-
- 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
- H01J2237/10—Lenses
- H01J2237/103—Lenses characterised by lens type
- H01J2237/1035—Immersion lens
-
- 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
- H01J2237/244—Detection characterized by the detecting means
- H01J2237/2448—Secondary particle detectors
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
以上説明した本実施例の走査電子顕微鏡によれば、ブースティング法による試料観察において、試料7に照射される電子線の軌道上への不要な磁界の漏洩を抑制することができる。その結果、試料7に照射される電子線をボケさせないとともに色収差を低減できるので、観察像の空間分解能を向上できる。
Claims (3)
- 試料に照射される荷電粒子線を生成する荷電粒子源と、
前記荷電粒子線を集束させる磁界を発生する対物レンズと、
前記対物レンズの内側に設けられ、前記荷電粒子線を加速する電圧が印加されるブースティング電極と、を備える荷電粒子線装置であって、
前記ブースティング電極が磁性体で構成され、
前記ブースティング電極と前記荷電粒子源との間に配置される電極である補助電極がさらに備えられ、
前記補助電極に印加される電圧は、前記ブースティング電極に印加される電圧よりも低く、
前記補助電極が非磁性体で構成されることを特徴とする荷電粒子線装置。 - 試料に照射される荷電粒子線を生成する荷電粒子源と、
前記荷電粒子線を集束させる磁界を発生する対物レンズと、
前記対物レンズの内側に設けられ、前記荷電粒子線を加速する電圧が印加されるブースティング電極と、を備える荷電粒子線装置であって、
前記ブースティング電極が磁性体で構成され、
前記ブースティング電極と前記荷電粒子源との間に配置される電極である補助電極がさらに備えられ、
前記補助電極に印加される電圧は、前記ブースティング電極に印加される電圧よりも低く、
前記補助電極の前記試料の側の端部は、前記ブースティング電極の前記荷電粒子源の側の端部よりも前記試料の側に配置されることを特徴とする荷電粒子線装置。 - 請求項2に記載の荷電粒子線装置であって、
前記補助電極の前記試料の側の端部は、前記ブースティング電極よりも内側に配置されることを特徴とする荷電粒子線装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/026333 WO2021001935A1 (ja) | 2019-07-02 | 2019-07-02 | 荷電粒子線装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2021001935A1 JPWO2021001935A1 (ja) | 2021-01-07 |
JP7161053B2 true JP7161053B2 (ja) | 2022-10-25 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021529606A Active JP7161053B2 (ja) | 2019-07-02 | 2019-07-02 | 荷電粒子線装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11823861B2 (ja) |
JP (1) | JP7161053B2 (ja) |
WO (1) | WO2021001935A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278329A (ja) | 2005-03-17 | 2006-10-12 | Ict Integrated Circuit Testing Ges Fuer Halbleiterprueftechnik Mbh | 高空間分解能および多視点結像用の荷電粒子ビーム装置 |
JP2014002835A (ja) | 2012-06-15 | 2014-01-09 | Hitachi High-Technologies Corp | 荷電粒子線装置 |
JP2014160678A (ja) | 2014-05-12 | 2014-09-04 | Hitachi High-Technologies Corp | 荷電粒子線装置 |
WO2017018432A1 (ja) | 2015-07-29 | 2017-02-02 | 株式会社 日立ハイテクノロジーズ | 荷電粒子線装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146090A (en) | 1990-06-11 | 1992-09-08 | Siemens Aktiengesellschaft | Particle beam apparatus having an immersion lens arranged in an intermediate image of the beam |
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 |
JP4791840B2 (ja) * | 2006-02-06 | 2011-10-12 | 株式会社日立ハイテクノロジーズ | 荷電粒子線装置、走査電子顕微鏡、および試料検査方法 |
JP4920385B2 (ja) * | 2006-11-29 | 2012-04-18 | 株式会社日立ハイテクノロジーズ | 荷電粒子ビーム装置、走査型電子顕微鏡、及び試料観察方法 |
JP5102580B2 (ja) * | 2007-10-18 | 2012-12-19 | 株式会社日立ハイテクノロジーズ | 荷電粒子線応用装置 |
JP5227643B2 (ja) * | 2008-04-14 | 2013-07-03 | 株式会社日立ハイテクノロジーズ | 高分解能でかつ高コントラストな観察が可能な電子線応用装置 |
JP5438937B2 (ja) * | 2008-09-05 | 2014-03-12 | 株式会社日立ハイテクノロジーズ | 荷電粒子ビーム装置 |
-
2019
- 2019-07-02 US US17/617,379 patent/US11823861B2/en active Active
- 2019-07-02 WO PCT/JP2019/026333 patent/WO2021001935A1/ja active Application Filing
- 2019-07-02 JP JP2021529606A patent/JP7161053B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278329A (ja) | 2005-03-17 | 2006-10-12 | Ict Integrated Circuit Testing Ges Fuer Halbleiterprueftechnik Mbh | 高空間分解能および多視点結像用の荷電粒子ビーム装置 |
JP2014002835A (ja) | 2012-06-15 | 2014-01-09 | Hitachi High-Technologies Corp | 荷電粒子線装置 |
JP2014160678A (ja) | 2014-05-12 | 2014-09-04 | Hitachi High-Technologies Corp | 荷電粒子線装置 |
WO2017018432A1 (ja) | 2015-07-29 | 2017-02-02 | 株式会社 日立ハイテクノロジーズ | 荷電粒子線装置 |
Also Published As
Publication number | Publication date |
---|---|
US11823861B2 (en) | 2023-11-21 |
US20220254597A1 (en) | 2022-08-11 |
JPWO2021001935A1 (ja) | 2021-01-07 |
WO2021001935A1 (ja) | 2021-01-07 |
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