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. 13, 1997
Filed:
Mar. 28, 1994
Applicant:
Inventors:
William R Hamburgen, Palo Alto, CA (US);
John S Fitch, Newark, CA (US);
Norman P Jouppi, Palo Alto, CA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
361820 ; 174 524 ; 257678 ; 257691 ; 361761 ; 361775 ;
Abstract
Power bus bars are provided for a semiconductor die. Power bus bars are thick electrical conductors that extend the length of the die in an electrically isolated array of stripes. The electrical stripes are divided into two or more interdigitated groups, each group connected to a power supply, or connected to a ground supply. This arrangement of alternate power and ground stripes minimizes inductance and resistance, and brings power and ground close to every transistor in the semiconductor die with minimized voltage variations.