DE112019004659T5 - Elektronenemitter mit in metall eingekapselter fotokathode - Google Patents

Elektronenemitter mit in metall eingekapselter fotokathode Download PDF

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Publication number
DE112019004659T5
DE112019004659T5 DE112019004659.4T DE112019004659T DE112019004659T5 DE 112019004659 T5 DE112019004659 T5 DE 112019004659T5 DE 112019004659 T DE112019004659 T DE 112019004659T DE 112019004659 T5 DE112019004659 T5 DE 112019004659T5
Authority
DE
Germany
Prior art keywords
protective film
photocathode structure
electron emitter
photocathode
electron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE112019004659.4T
Other languages
German (de)
English (en)
Inventor
Gildardo Delgado
Katerina Ioakeimidi
Frances Hill
Gary Lopez
Rudy F. Garcia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KLA Corp
Original Assignee
KLA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KLA Corp filed Critical KLA Corp
Publication of DE112019004659T5 publication Critical patent/DE112019004659T5/de
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/34Photo-emissive cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/30Cold cathodes, e.g. field-emissive cathode
    • H01J1/304Field-emissive cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/32Secondary-electron-emitting electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02Details
    • H01J37/04Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/06Electron sources; Electron guns
    • H01J37/073Electron guns using field emission, photo emission, or secondary emission electron sources
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/26Electron or ion microscopes; Electron or ion diffraction tubes
    • H01J37/28Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/34Photoemissive electrodes
    • H01J2201/342Cathodes
    • H01J2201/3421Composition of the emitting surface
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/34Photoemissive electrodes
    • H01J2201/342Cathodes
    • H01J2201/3421Composition of the emitting surface
    • H01J2201/3423Semiconductors, e.g. GaAs, NEA emitters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/34Photoemissive electrodes
    • H01J2201/342Cathodes
    • H01J2201/3421Composition of the emitting surface
    • H01J2201/3425Metals, metal alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/34Photoemissive electrodes
    • H01J2201/342Cathodes
    • H01J2201/3421Composition of the emitting surface
    • H01J2201/3426Alkaline metal compounds, e.g. Na-K-Sb
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/02Details
    • H01J2237/022Avoiding or removing foreign or contaminating particles, debris or deposits on sample or tube
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/06Sources
    • H01J2237/063Electron sources
    • H01J2237/06325Cold-cathode sources
    • H01J2237/06333Photo emission
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/26Electron or ion microscopes
    • H01J2237/28Scanning microscopes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
DE112019004659.4T 2018-09-18 2019-09-17 Elektronenemitter mit in metall eingekapselter fotokathode Pending DE112019004659T5 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201862732937P 2018-09-18 2018-09-18
US62/732,937 2018-09-18
US16/259,317 US10714295B2 (en) 2018-09-18 2019-01-28 Metal encapsulated photocathode electron emitter
US16/259,317 2019-01-28
PCT/US2019/051372 WO2020060954A1 (en) 2018-09-18 2019-09-17 Metal encapsulated photocathode electron emitter

Publications (1)

Publication Number Publication Date
DE112019004659T5 true DE112019004659T5 (de) 2021-06-17

Family

ID=69773104

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112019004659.4T Pending DE112019004659T5 (de) 2018-09-18 2019-09-17 Elektronenemitter mit in metall eingekapselter fotokathode

Country Status (8)

Country Link
US (1) US10714295B2 (enExample)
JP (1) JP7185772B2 (enExample)
KR (1) KR102545439B1 (enExample)
CN (2) CN118263073A (enExample)
DE (1) DE112019004659T5 (enExample)
IL (1) IL281346B2 (enExample)
TW (1) TWI800681B (enExample)
WO (1) WO2020060954A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11495428B2 (en) * 2019-02-17 2022-11-08 Kla Corporation Plasmonic photocathode emitters at ultraviolet and visible wavelengths

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706885A (en) * 1971-01-29 1972-12-19 Gen Electric Photocathode-phosphor imaging system for x-ray camera tubes
US4008106A (en) * 1975-11-13 1977-02-15 The United States Of America As Represented By The Secretary Of The Army Method of fabricating III-V photocathodes
US5684360A (en) * 1995-07-10 1997-11-04 Intevac, Inc. Electron sources utilizing negative electron affinity photocathodes with ultra-small emission areas
US6005247A (en) 1997-10-01 1999-12-21 Intevac, Inc. Electron beam microscope using electron beam patterns
KR100423849B1 (ko) * 2001-09-11 2004-03-22 한국과학기술원 매우 얇은 보호막을 갖는 광음극
US7015467B2 (en) 2002-10-10 2006-03-21 Applied Materials, Inc. Generating electrons with an activated photocathode
US20100025796A1 (en) 2008-08-04 2010-02-04 Amir Massoud Dabiran Microchannel plate photocathode
US10197501B2 (en) 2011-12-12 2019-02-05 Kla-Tencor Corporation Electron-bombarded charge-coupled device and inspection systems using EBCCD detectors
US9601299B2 (en) * 2012-08-03 2017-03-21 Kla-Tencor Corporation Photocathode including silicon substrate with boron layer
CN104561901A (zh) 2013-10-22 2015-04-29 中国科学院上海硅酸盐研究所 一种掺铊的碘化铯复合薄膜及其制备方法
US10748730B2 (en) * 2015-05-21 2020-08-18 Kla-Tencor Corporation Photocathode including field emitter array on a silicon substrate with boron layer
US10141155B2 (en) 2016-12-20 2018-11-27 Kla-Tencor Corporation Electron beam emitters with ruthenium coating
US10395884B2 (en) * 2017-10-10 2019-08-27 Kla-Tencor Corporation Ruthenium encapsulated photocathode electron emitter

Also Published As

Publication number Publication date
US20200090895A1 (en) 2020-03-19
WO2020060954A1 (en) 2020-03-26
JP7185772B2 (ja) 2022-12-07
KR102545439B1 (ko) 2023-06-20
KR20210046820A (ko) 2021-04-28
US10714295B2 (en) 2020-07-14
CN118263073A (zh) 2024-06-28
IL281346B1 (en) 2024-04-01
TWI800681B (zh) 2023-05-01
TW202025197A (zh) 2020-07-01
IL281346B2 (en) 2024-08-01
CN112673448A (zh) 2021-04-16
JP2022501772A (ja) 2022-01-06
IL281346A (en) 2021-04-29

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