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. 12, 1978
Filed:
Dec. 21, 1977
Applicant:
Inventors:
Venkappa L Gani, Wappingers Falls, NY (US);
Frank A Montegari, Wappingers Falls, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307203 ; 3072 / ; 307208 ; 307213 ; 307218 ; 3073 / ;
Abstract
The disclosed logic circuit includes one transistor and a plurality of Schottky barrier diodes in each logic circuit 'cell,' a plurality of such cells being interconnected to perform desired logic functions. Cell interconnections are made by interconnecting metallurgy which can have a relatively high resistance with relatively long interconnecting paths between a sending circuit cell and a receiving circuit cell. The undesirable effects of this metallurgy resistance are overcome by driving the base of the receiving transistor through a base drive resistor in the sending cell.