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. 21, 2006
Filed:
Dec. 26, 2002
Nobuyuki Ito, Tokyo, JP;
Hideaki Masuko, Tokyo, JP;
Satomi Hasegawa, Tokyo, JP;
Atsushi Ito, Tokyo, JP;
Katsumi Inomata, Tokyo, JP;
Nobuyuki Ito, Tokyo, JP;
Hideaki Masuko, Tokyo, JP;
Satomi Hasegawa, Tokyo, JP;
Atsushi Ito, Tokyo, JP;
Katsumi Inomata, Tokyo, JP;
JSR Corporation, Tokyo, JP;
Abstract
A photosensitive composition for forming a dielectric of the present invention comprising inorganic particles, an alkali developable resin and additives, wherein the additives comprise a compound having a quinonediazido group (C1), a compound containing at least two alkyletherified amino groups in the molecule (C2) and a thermal acid generator (C3), or wherein the inorganic particles comprise inorganic superfine particles (A-I) having a mean particle diameter of less than 0.05 μm and inorganic fine particles (A-II) having a mean particle diameter of not less than 0.05 μm. The composition can be calcined at low temperatures to form a dielectric layer with high dimensional precision, said layer having a high dielectric constant and a low dielectric loss. Also provided are a dielectric and an electronic part prepared from the composition.