GB1433944A - Method and apparatus for producing electron emission from a field emission cathode - Google Patents

Method and apparatus for producing electron emission from a field emission cathode

Info

Publication number
GB1433944A
GB1433944A GB3818173A GB3818173A GB1433944A GB 1433944 A GB1433944 A GB 1433944A GB 3818173 A GB3818173 A GB 3818173A GB 3818173 A GB3818173 A GB 3818173A GB 1433944 A GB1433944 A GB 1433944A
Authority
GB
United Kingdom
Prior art keywords
emission
cathode
tip
chosen
plane
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.)
Expired
Application number
GB3818173A
Other languages
English (en)
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of GB1433944A publication Critical patent/GB1433944A/en
Expired legal-status Critical Current

Links

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
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/073—Electron guns using field emission, photo emission, or secondary emission electron sources
    • 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
    • H01J37/09—Diaphragms; Shields associated with electron or ion-optical arrangements; Compensation of disturbing fields
    • 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
    • H01J2237/06—Sources
    • H01J2237/063—Electron sources
    • H01J2237/06308—Thermionic sources
    • H01J2237/06316—Schottky emission

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
GB3818173A 1972-08-17 1973-08-13 Method and apparatus for producing electron emission from a field emission cathode Expired GB1433944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00281375A US3809899A (en) 1972-08-17 1972-08-17 Electron-beam tube including a thermionic-field emission cathode for a scanning electron microscope

Publications (1)

Publication Number Publication Date
GB1433944A true GB1433944A (en) 1976-04-28

Family

ID=23077025

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3159874A Expired GB1433945A (en) 1972-08-17 1973-08-13 Electronbeam tubes for scanning electron microscopes
GB3818173A Expired GB1433944A (en) 1972-08-17 1973-08-13 Method and apparatus for producing electron emission from a field emission cathode

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3159874A Expired GB1433945A (en) 1972-08-17 1973-08-13 Electronbeam tubes for scanning electron microscopes

Country Status (7)

Country Link
US (1) US3809899A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (3) JPS557661B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1031080A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE2366144C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (2) FR2199613B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (2) GB1433945A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL7311344A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066705A1 (en) * 1981-05-26 1982-12-15 International Business Machines Corporation Single crystal lanthanum hexaboride cathode suitable for thermionic emission of a shaped electron beam with uniform intensity distribution

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514266C2 (de) * 1975-03-27 1977-04-28 Siemens Ag Korpuskularstrahloptisches geraet mit zwei in strahlrichtung aufeinanderfolgenden teilraeumen unterschiedlicher druecke
US4175234A (en) * 1977-08-05 1979-11-20 University Of Virginia Apparatus for producing ions of thermally labile or nonvolatile solids
US4139773A (en) * 1977-11-04 1979-02-13 Oregon Graduate Center Method and apparatus for producing bright high resolution ion beams
JPS5648028A (en) * 1979-09-26 1981-05-01 Toshiba Corp Electron gun
DE3039283A1 (de) * 1979-10-19 1981-05-14 Hitachi, Ltd., Tokyo Feldemissionskathode und verfahren zu ihrer herstellung
EP0189498B1 (en) * 1985-01-29 1989-05-03 International Business Machines Corporation Field-emission scanning auger electron microscope
EP0462554B1 (en) * 1990-06-20 2000-10-11 Hitachi, Ltd. Charged particle beam apparatus
EP0689224B1 (en) * 1990-08-10 1999-12-22 Koninklijke Philips Electronics N.V. Charged particle beam device
JP3148353B2 (ja) * 1991-05-30 2001-03-19 ケーエルエー・インストルメンツ・コーポレーション 電子ビーム検査方法とそのシステム
US5616926A (en) * 1994-08-03 1997-04-01 Hitachi, Ltd. Schottky emission cathode and a method of stabilizing the same
JP2951610B2 (ja) * 1997-01-20 1999-09-20 株式会社日立製作所 欠陥検査方法
JP2951609B2 (ja) * 1997-01-20 1999-09-20 株式会社日立製作所 電子ビーム検査装置
JP2969091B2 (ja) * 1997-01-20 1999-11-02 株式会社日立製作所 電子ビーム検査装置
EP2365511B1 (en) * 2010-03-10 2013-05-08 ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH Feedback loop for emitter flash cleaning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE438468A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1939-05-08
NL112758C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1942-10-28
NL102095C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1955-07-01
NL289910A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1962-03-08
US3174026A (en) * 1962-06-20 1965-03-16 Budd Co Method and means of circumventing cathode maintenance in electron beam devices
US3374386A (en) * 1964-11-02 1968-03-19 Field Emission Corp Field emission cathode having tungsten miller indices 100 plane coated with zirconium, hafnium or magnesium on oxygen binder
US3678333A (en) * 1970-06-15 1972-07-18 American Optical Corp Field emission electron gun utilizing means for protecting the field emission tip from high voltage discharges
JPS5852244B2 (ja) * 1977-05-04 1983-11-21 松下電器産業株式会社 モ−タの回転数調整装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066705A1 (en) * 1981-05-26 1982-12-15 International Business Machines Corporation Single crystal lanthanum hexaboride cathode suitable for thermionic emission of a shaped electron beam with uniform intensity distribution
US4468586A (en) * 1981-05-26 1984-08-28 International Business Machines Corporation Shaped electron emission from single crystal lanthanum hexaboride with intensity distribution

Also Published As

Publication number Publication date
DE2341377A1 (de) 1974-03-07
NL7908479A (nl) 1980-03-31
FR2199613A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-04-12
FR2199613B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-02-25
JPS54161263A (en) 1979-12-20
CA1031080A (en) 1978-05-09
US3809899A (en) 1974-05-07
JPS5661960U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-05-26
FR2214962A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-08-19
GB1433945A (en) 1976-04-28
NL7311344A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-02-19
FR2214962B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-07-07
JPS49132975A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-12-20
DE2366144C2 (de) 1982-12-30
JPS557661B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-02-27

Similar Documents

Publication Publication Date Title
GB1433944A (en) Method and apparatus for producing electron emission from a field emission cathode
US3702412A (en) Apparatus for and method of producing an energetic electron curtain
US2363359A (en) Electron microscope
GB1079342A (en) Field emission cathode and electron beam tube employing such cathode
US3720856A (en) Binary material field emitter structure
GB1445695A (en) Method for reproducibly fabricating and using stable thermal-field emission cathodes
US3786268A (en) Electron gun device of field emission type
US3763346A (en) Methods of shaping resharpening or cleaning tips
GB1531505A (en) Method and apparatus for extracting well-formed high current ion beams from a plasma source
GB1061793A (en) Method of producing x-ray pulses
JPH0619959B2 (ja) 電子放出システム
GB803221A (en) Improvements relating to electron guns
GB1033029A (en) Irradiation apparatus utilizing electron beams
GB1178406A (en) Electron Gun Including an Ion Trap.
US2403745A (en) Apparatus and method for making tubes
GB1251333A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB1291221A (en) Electron probe forming system
GB804697A (en) Improvements in x-ray tubes
GB1426509A (en) Field-emission electron guns
GB848340A (en) Electric circuit including an improved electric-discharge tube
GB1525396A (en) Sintered cathode
GB794333A (en) Velocity modulated electron tubes
GB856973A (en) Improvements relating to high frequency electron discharge tubes
US2654040A (en) Commutator tube device
GB1381686A (en) Electron beam heating system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee