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:
Dec. 11, 2001
Filed:
Mar. 22, 1999
Applicant:
Inventor:
Katsuhiko Hayashi, Narita, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/312 ; H01L 2/315 ; H05K 1/03 ; H05I 1/00 ; H03T 7/00 ;
U.S. Cl.
CPC ...
H01L 2/312 ; H01L 2/315 ; H05K 1/03 ; H05I 1/00 ; H03T 7/00 ;
Abstract
Passive electronic parts containing a substrate (,) and a passive circuit (,). The substrate (,) has an inorganic insulating layer (,) composed of a mixture of a ceramic component and glass component. The passive circuit (,) is composed of a conductor pattern in general and provided on one surface (,) of the insulating layer (,). It is preferable to polish the surface (,) of the insulating layer (,) on which the circuit (,) is formed. An electronic part can be designed for a smaller pattern area by making the conductive pattern finer.