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:
Sep. 13, 1988
Filed:
Nov. 20, 1985
Applicant:
Inventors:
Kiyotaka Wasa, Nara, JP;
Takashi Hirao, Ikoma, JP;
Atsuo Nishikawa, Katano, JP;
Seiji Nishino, Osaka, JP;
Takeo Ohta, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ;
U.S. Cl.
CPC ...
428212 ; 428698 ; 428699 ; 428446 ; 428448 ; 4284256 ; 4284258 ; 4284244 ; 427 42 ; 427162 ; 73 73 ; 206328 ;
Abstract
An inorganic protection film (12) such as of silicon nitride for protecting humidity-sensitive functional devices (16) on the substrate from water molecules (15) is formed on an organic substrate (11) such as one made of polycarbonate plastic material, with a soft buffer interface film (13) between the substrate and the protection film, and the buffer film releases stress due to the difference of thermal expansion coefficients of the organic substrate and the protection film.