MY106477A - Cathode for electron gun and its manufacturing method. - Google Patents

Cathode for electron gun and its manufacturing method.

Info

Publication number
MY106477A
MY106477A MYPI90001537A MYPI19901537A MY106477A MY 106477 A MY106477 A MY 106477A MY PI90001537 A MYPI90001537 A MY PI90001537A MY PI19901537 A MYPI19901537 A MY PI19901537A MY 106477 A MY106477 A MY 106477A
Authority
MY
Malaysia
Prior art keywords
cathode
substance
manufacturing
electron gun
thermoelectron emission
Prior art date
Application number
MYPI90001537A
Inventor
Sohn Kyung-Cheon
Lee An-Sub
Original Assignee
Samsung Electron Devices 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 Samsung Electron Devices Co Ltd filed Critical Samsung Electron Devices Co Ltd
Publication of MY106477A publication Critical patent/MY106477A/en

Links

Abstract

A CATHODE FOR AN ELECTRON GUN AND ITS MANUFACTURING METHOD ARE DISCLOSED. THE CATHODE COMPRISES THERMOELECTRON EMISSION SUBSTANCE LAYER (3) COMPOSED OF TRIPLE COMPOSITE OXIDE OF ALKALINE EARTH METAL FORMED BY THERMALLY DECOMPOSING TRIPLE CARBONATE OF ALKALINE EARTH METAL SUCH AS BARIUM, STRONTIUM AND CALCIUM, CONTAINING A FOURTH SUBSTANCE. THE FOURTH SUBSTANCE CONSISTS OF SCANDIUM NITRATE OR INDIUM NITRATE SO THAT THE FOURTH SUBSTANCE CAN BE UNIFORMLY DISPERSED INTO THE THERMOELECTRON EMISSION SUBSTANCE LAYER (3), AND THUS THE THERMOELECTRON EMISSION CHARACTERISTICS AND DURABILITY OF THE CATHODE CAN BE REMARKABLY ENHANCED.(FIG 1)
MYPI90001537A 1990-09-07 1990-09-06 Cathode for electron gun and its manufacturing method. MY106477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR890012970 1990-09-07

Publications (1)

Publication Number Publication Date
MY106477A true MY106477A (en) 1995-05-30

Family

ID=79554094

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI90001537A MY106477A (en) 1990-09-07 1990-09-06 Cathode for electron gun and its manufacturing method.

Country Status (1)

Country Link
MY (1) MY106477A (en)

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