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:
Aug. 15, 1989
Filed:
Aug. 08, 1988
Applicant:
Inventors:
Kevin M Ovens, Garland, TX (US);
Bobby D Strong, Garland, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307455 ; 307446 ; 307561 ; 307565 ;
Abstract
The disclosure relates to a method of making a logic circuit wherein the voltage regulators of the ECL circuits, which use resistor ratios, the values of which are difficult to control in the formation of semiconductor circuits, are replaced by a series of diodes, the areas of which are very easy to control in semiconductor fabrication, to set the threshold voltages for the transistors. Embodiments are disclosed using the basic circuit in a stacked configuration to provide AND/NAND operation in addition to the OR/NOR operation of the basic embodiment.