GB1350771A - Microelectronic devices - Google Patents

Microelectronic devices

Info

Publication number
GB1350771A
GB1350771A GB1350771DA GB1350771A GB 1350771 A GB1350771 A GB 1350771A GB 1350771D A GB1350771D A GB 1350771DA GB 1350771 A GB1350771 A GB 1350771A
Authority
GB
United Kingdom
Prior art keywords
square
realignment
resist
electron beam
microelectronic devices
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
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB1350771A publication Critical patent/GB1350771A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C17/00Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/26Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by converting resistive material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Electron Beam Exposure (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

1350771 Photomask DEFENCE SECRETARY OF STATE FOR 19 April 1971 [22 Jan 1970] 3165/70 Heading G2X [Also in Division H1] A method of producing a mask for use in the production of such a micro-electronic device uses the electron beam of an electron microscope to change the nature of "resist" material deposited on a surface so that the resist material may be selectively etched in order that the substrate may be selectively processed, the resist material carrying a set of reference marks so that the beam may be accurately aligned throughout the process. Mechanical realignment of the electron beam may be effected every 1À5 mm square and electronic realignment every 100 p square.
GB1350771D 1970-01-22 1970-01-22 Microelectronic devices Expired GB1350771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB316570 1970-01-22

Publications (1)

Publication Number Publication Date
GB1350771A true GB1350771A (en) 1974-04-24

Family

ID=9753159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1350771D Expired GB1350771A (en) 1970-01-22 1970-01-22 Microelectronic devices

Country Status (1)

Country Link
GB (1) GB1350771A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee