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. 15, 1987
Filed:
Jun. 30, 1986
William F Davis, Tempe, AZ (US);
Robert L Vyne, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
First and second resistors of a resistive network formed in a semiconductive substrate may be individually trimmed. The first and second resistive regions coupled at one end thereof have their other ends provided with metallic contacts. The resistive regions are disposed on the substrate such that current flowing from the first metallic contact to the second metallic contact through the first and second resistive regions causes the resistance of the first resistive region to be reduced. In contrast, current flowing from the second metallic contact to the first metallic contact through the first and second resistive regions causes the resistance of the second resistive region to be reduced.