JPS5727550A - Electron lens - Google Patents

Electron lens

Info

Publication number
JPS5727550A
JPS5727550A JP10209080A JP10209080A JPS5727550A JP S5727550 A JPS5727550 A JP S5727550A JP 10209080 A JP10209080 A JP 10209080A JP 10209080 A JP10209080 A JP 10209080A JP S5727550 A JPS5727550 A JP S5727550A
Authority
JP
Japan
Prior art keywords
theta3
reduced
magnetic
magnetic poles
distortion aberration
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.)
Granted
Application number
JP10209080A
Other languages
English (en)
Other versions
JPS6329783B2 (ja
Inventor
Katsushige Tsuno
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP10209080A priority Critical patent/JPS5727550A/ja
Publication of JPS5727550A publication Critical patent/JPS5727550A/ja
Publication of JPS6329783B2 publication Critical patent/JPS6329783B2/ja
Granted 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, ion-optical arrangement
    • H01J37/10—Lenses
    • H01J37/14—Lenses magnetic
    • H01J37/143—Permanent magnetic lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
JP10209080A 1980-07-25 1980-07-25 Electron lens Granted JPS5727550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10209080A JPS5727550A (en) 1980-07-25 1980-07-25 Electron lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10209080A JPS5727550A (en) 1980-07-25 1980-07-25 Electron lens

Publications (2)

Publication Number Publication Date
JPS5727550A true JPS5727550A (en) 1982-02-13
JPS6329783B2 JPS6329783B2 (ja) 1988-06-15

Family

ID=14318070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10209080A Granted JPS5727550A (en) 1980-07-25 1980-07-25 Electron lens

Country Status (1)

Country Link
JP (1) JPS5727550A (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526073A (en) * 1975-07-04 1977-01-18 Hitachi Ltd Magnetic field type electronic lens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526073A (en) * 1975-07-04 1977-01-18 Hitachi Ltd Magnetic field type electronic lens

Also Published As

Publication number Publication date
JPS6329783B2 (ja) 1988-06-15

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