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.

Date of Patent:
Jun. 04, 1996

Filed:

May. 11, 1995
Applicant:
Inventor:

Makoto Kikuchi, Ichikawa, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257692 ; 257668 ; 257700 ; 257704 ; 257784 ;
Abstract

In order to set the potential of corner leads formed from a lead frame equal to that of power source leads such as ground, a multilayer wiring substrate is mounted on a mounting substrate of a package and its potential is set equal to that of the power source leads, or a multilayer mounting substrate is formed to electrically connect electrode pads of a semiconductor substrate to the power source and corner leads by bonding wires. The inductance of the power source leads can be lowered, and the number of signal leads interposed between the power source leads can be reduced to the minimum. Consequently, variations in frequency used in the entire package can be prevented, and impedance matching can be made.


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