The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2004
Filed:
Nov. 20, 2001
Applicant:
Inventors:
Won Kook Choi, Seoul, KR;
Hyung Jin Jung, Seoul, KR;
Assignee:
Korea Institute of Science and Technology, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/434 ; C23C 1/640 ; B05D 3/02 ;
U.S. Cl.
CPC ...
C23C 1/434 ; C23C 1/640 ; B05D 3/02 ;
Abstract
Substrate that is vapor-deposited with dopant-added ZnO thin film is loaded into a heat-treating chamber, and heat-treated quickly under gas atmosphere to activate the dopant. A thin film phosphor having new luminescence peak can be fabricated by quick-heat-treatment of zinc compound semiconductor under hydrogen atmosphere. This thin film phosphor can replace the conventional blue luminescence using alloy-type ZnO and furthermore can be utilized as blue light emitting material for flat plate display elements such as FED and PDP.