JP6291403B2 - 透過型電子顕微鏡用位相板を清浄化する方法 - Google Patents
透過型電子顕微鏡用位相板を清浄化する方法 Download PDFInfo
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- JP6291403B2 JP6291403B2 JP2014232448A JP2014232448A JP6291403B2 JP 6291403 B2 JP6291403 B2 JP 6291403B2 JP 2014232448 A JP2014232448 A JP 2014232448A JP 2014232448 A JP2014232448 A JP 2014232448A JP 6291403 B2 JP6291403 B2 JP 6291403B2
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- phase plate
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- 238000000034 method Methods 0.000 title claims description 35
- 230000005540 biological transmission Effects 0.000 title claims description 3
- 238000004140 cleaning Methods 0.000 title claims description 3
- 238000007689 inspection Methods 0.000 claims description 41
- 238000001312 dry etching Methods 0.000 claims description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 23
- 238000005530 etching Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000012071 phase Substances 0.000 description 55
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 230000010363 phase shift Effects 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Images
Classifications
-
- 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
- H01J37/263—Contrast, resolution or power of penetration
-
- 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
-
- 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
- H01J37/153—Electron-optical or ion-optical arrangements for the correction of image defects, e.g. stigmators
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- 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
-
- 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
- H01J2237/2614—Holography or phase contrast, phase related imaging in general, e.g. phase plates
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Sampling And Sample Adjustment (AREA)
Description
2 ビーム路
3 試料
4 対物レンズ
5 結像レンズ
6 貫通孔
7 検査用チャンバ
8 乾式エッチング装置
9 プラズマチャンバ
10 電極
11 ニードルバルブ
21 真空流路
22 内側流路ゲート
23 外側流路ゲート
24 真空ポンプ
Claims (13)
- 透過型電子顕微鏡(TEM)のビーム路中の検査用チャンバ内に設けられて照射されるように設計された位相板を清浄化する方法であって、
前記位相板は、酸素含有化合物及び/又は炭素含有化合物を除去するのに適したエッチング剤によってエッチングされ、
前記位相板が前記TEM内で最初に照射される前に、前記エッチングは行われ、かつ、
前記エッチング後、前記酸素含有化合物及び/又は炭素含有化合物の一部が減少されており、前記TEM内での照射のため、前記位相板は保持周辺圧力に保持され、
前記減少した後は、酸素含有化合物の場合、分子濃度は最大1×1011/cm3で、かつ、炭素含有化合物の場合、分子濃度は最大5×1013/cm3であることを意味する、
方法。 - 前記保持周辺圧力が高真空である、請求項1に記載の方法。
- 前記位相板がエッチングされ、かつ、
前記エッチングは、乾式エッチングである、
請求項1に記載の方法。 - 前記乾式エッチングが前記TEM内で行われる、請求項3に記載の方法。
- 前記乾式エッチングが、前記TEMの検査用チャンバに追加された流路内で行われ、
前記流路は、内側流路ゲートを開放することによって圧力により流体をやり取りするように前記検査用チャンバと接続し、かつ、
前記内側流路ゲートが閉じられるときに、前記エッチングが行われる、
請求項4に記載の方法。 - 前記内側流路ゲートが閉じられるときに、前記位相板が、外側流路ゲートを介して前記流路へ導入され、
その後前記外側流路ゲートは閉じられ、
前記流路は、前記乾式エッチングが行われる中間圧力にまで排気され、
さらにその後排気は、前記中間圧力よりも少なくとも10倍低い最終圧力になるまで行われ、
その後前記内側流路ゲートが開放され、かつ、
前記位相板が、前記検査用チャンバ内に導入される、
請求項5に記載の方法。 - 前記乾式エッチングが、前記TEMの検査用チャンバ内で行われる、請求項4に記載の方法。
- 前記TEMの検査用チャンバが開放され、
前記TEMの検査用チャンバが充満されるときに、前記位相板が挿入され、
その後前記検査用チャンバは、前記乾式エッチングが行われる中間圧力にまで排気され、
その後排気は、前記中間圧力よりも少なくとも10倍低い最終圧力になるまで行われる。
請求項7に記載の方法。 - 前記乾式エッチング用に供された処理気体が、水素及び酸素のうちの少なくとも一方を含む、請求項3に記載の方法。
- 酸素含有気体が、中間圧力を最大で5×10−3mabrで少なくとも5×10−5mabrに設定して、処理気体としての酸素によって乾式エッチングを行うため、乾式エッチングが行われる領域へ供給される、
請求項4に記載の方法。 - 前記位相板がエッチングされ、
前記エッチング剤が、前記酸素含有化合物及び/又は前記炭素含有化合物に対して少なくとも0.05nm/hのエッチング速度を有する、
請求項1に記載の方法。 - 前記位相板が少なくとも、金属からなる第1位相板材料の第1層を有する、請求項1に記載の方法。
- 前記位相板が少なくとも、第1位相板材料の第1層及び第2位相板材料の第2層を有し、
前記第2位相板材料はシリコンからなる、
請求項1に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013019297.8A DE102013019297A1 (de) | 2013-11-19 | 2013-11-19 | Phasenplatte für ein Transmissionselektronenmikroskop |
DE102013019297.8 | 2013-11-19 |
Publications (3)
Publication Number | Publication Date |
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JP2015099778A JP2015099778A (ja) | 2015-05-28 |
JP2015099778A5 JP2015099778A5 (ja) | 2017-08-24 |
JP6291403B2 true JP6291403B2 (ja) | 2018-03-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014232448A Active JP6291403B2 (ja) | 2013-11-19 | 2014-11-17 | 透過型電子顕微鏡用位相板を清浄化する方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9460890B2 (ja) |
EP (1) | EP2879158B1 (ja) |
JP (1) | JP6291403B2 (ja) |
CN (1) | CN104681383B (ja) |
DE (1) | DE102013019297A1 (ja) |
Families Citing this family (1)
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EP2881970A1 (en) | 2013-12-04 | 2015-06-10 | Fei Company | Method of producing a freestanding thin film of nano-crystalline carbon |
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2013
- 2013-11-19 DE DE102013019297.8A patent/DE102013019297A1/de not_active Withdrawn
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2014
- 2014-11-17 JP JP2014232448A patent/JP6291403B2/ja active Active
- 2014-11-18 EP EP14193565.0A patent/EP2879158B1/en active Active
- 2014-11-19 US US14/548,077 patent/US9460890B2/en active Active
- 2014-11-19 CN CN201410660475.3A patent/CN104681383B/zh active Active
Also Published As
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US20150136172A1 (en) | 2015-05-21 |
CN104681383A (zh) | 2015-06-03 |
DE102013019297A1 (de) | 2015-05-21 |
EP2879158A1 (en) | 2015-06-03 |
CN104681383B (zh) | 2018-04-13 |
JP2015099778A (ja) | 2015-05-28 |
EP2879158B1 (en) | 2016-08-24 |
US9460890B2 (en) | 2016-10-04 |
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