GB1521281A - Electronic devices utilising cold electron emitters - Google Patents

Electronic devices utilising cold electron emitters

Info

Publication number
GB1521281A
GB1521281A GB51975A GB51975A GB1521281A GB 1521281 A GB1521281 A GB 1521281A GB 51975 A GB51975 A GB 51975A GB 51975 A GB51975 A GB 51975A GB 1521281 A GB1521281 A GB 1521281A
Authority
GB
United Kingdom
Prior art keywords
depressions
emitter
electronic devices
cold cathode
semiconductor body
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
GB51975A
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co Ltd
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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB51975A priority Critical patent/GB1521281A/en
Priority to DE19752511816 priority patent/DE2511816C3/en
Publication of GB1521281A publication Critical patent/GB1521281A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details 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
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/308—Semiconductor cathodes, e.g. cathodes with PN junction layers

Landscapes

  • Cold Cathode And The Manufacture (AREA)

Abstract

1521281 Cold cathode materials and processing ENGLISH ELECTRIC VALVE CO Ltd 13 Oct 1975 [7 Jan 1975] 519/75 Headings H1D and H1K A cold cathode of the negative electron affinity type comprises a semiconductor body 1 into which extend a number of depressions 5 such that the sides of the depressions constitute electron emitting surfaces and a metal film 3 is provided on the semiconductor body surface in a pattern around the depressions. The depressions in the plane of the emitter may be in the form of a regular matrix or a series of channels, and, in an example, a matrix of depressions have a depth, width and separation of 10 Ám. The emitter is made by providing an etch resistant pattern on the surface of a gallium arsenide phosphide semiconductor chip, etching to produce the depressions 5, removing the resist layer and diffusing a dopant into the surface to provide the p-type layer 2. The metal contact layer 3 is then provided and the emitter is activated by a conventional caesiating procedure.
GB51975A 1975-01-07 1975-01-07 Electronic devices utilising cold electron emitters Expired GB1521281A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB51975A GB1521281A (en) 1975-01-07 1975-01-07 Electronic devices utilising cold electron emitters
DE19752511816 DE2511816C3 (en) 1975-01-07 1975-03-18 Cold cathodes and processes for their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51975A GB1521281A (en) 1975-01-07 1975-01-07 Electronic devices utilising cold electron emitters

Publications (1)

Publication Number Publication Date
GB1521281A true GB1521281A (en) 1978-08-16

Family

ID=9705795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51975A Expired GB1521281A (en) 1975-01-07 1975-01-07 Electronic devices utilising cold electron emitters

Country Status (1)

Country Link
GB (1) GB1521281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538175A1 (en) * 1984-11-21 1986-05-22 N.V. Philips' Gloeilampenfabrieken, Eindhoven SEMICONDUCTOR ARRANGEMENT WITH INCREASED STABILITY

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538175A1 (en) * 1984-11-21 1986-05-22 N.V. Philips' Gloeilampenfabrieken, Eindhoven SEMICONDUCTOR ARRANGEMENT WITH INCREASED STABILITY
FR2573573A1 (en) * 1984-11-21 1986-05-23 Philips Nv SEMICONDUCTOR CATHODE WITH INCREASED STABILITY

Also Published As

Publication number Publication date
DE2511816A1 (en) 1976-07-15
DE2511816B2 (en) 1977-03-10

Similar Documents

Publication Publication Date Title
GB1521281A (en) Electronic devices utilising cold electron emitters
GB1407062A (en) Semiconductor devices
JPS5310265A (en) Impurity diffusion method
JPS5676568A (en) Manufacture of thyristor
JPS55154735A (en) Manufacture of semiconductor device
JPS5287988A (en) High dielectric strength semiconductor device
JPS5629347A (en) Manufacture of semiconductor device
JPS5713762A (en) Light energized semiconductor device
JPS57100719A (en) Manufacture of semiconductor device
JPS5754347A (en) Selective oxidation
JPS5365671A (en) Schottky barrier semiconductor device and its manufacture
JPS55120165A (en) Semiconductor device
JPS5743431A (en) Manufacture of semiconductor device
JPS5680175A (en) Semiconductor device
JPS5516474A (en) Method of manufacturing semiconductor element
JPS6417443A (en) Manufacture of semiconductor device
JPS5325350A (en) Dicing method of semiconductor substrates
JPS5541751A (en) Manufacturing semiconductor device
JPS5578568A (en) Manufacture of semiconductor device
JPS5315765A (en) Vacuum caontact prevention method of hard mask
JPS5789223A (en) Manufacture of semiconductor device
JPS544575A (en) Production of semiconductor devices
JPS57193043A (en) Manufacture of insulator isolated substrate
JPS6419765A (en) Manufacture of semiconductor integrated circuit device
JPS5775430A (en) Formation of opening parts insulating film

Legal Events

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