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:
May. 11, 1993
Filed:
Mar. 05, 1992
Applicant:
Inventor:
Takahisa Kawai, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257534 ; 257301 ; 257621 ; 257622 ; 257774 ;
Abstract
A semiconductor device having a built-in capacitor comprises a substrate, an internal electrode provided on a top side of the substrate, a dielectric film provided so as to cover the internal electrode for establishing a predetermined capacitance, a surface electrode provided on the dielectric film so as to make a contact therewith, a plurality of through holes formed in the substrate in correspondence to the internal electrode so as to extend from a bottom side to the top side, and a back-side electrode provided on the bottom side of the substrate including the through holes so as to make a contact with the internal electrode through the through holes.