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:
Feb. 13, 1990
Filed:
Jul. 08, 1988
Roy W Chapel, Jr, Edmonds, WA (US);
Robert W Hammond, Edmonds, WA (US);
John Fluke Mfg. Co., Inc., Everett, WA (US);
Abstract
A resistive network formed on a substrate includes film resistors formed of resistive elements, each element having a plurality of portions symmetrically disposed relative to two axes of symmetry. The biaxially symmetric arrangement provides uniform resistance characteristics for the various film resistors, thus improving stability of resistance ratios among resistors of the network. TCR tracking for the film resistors, i.e., the TCR of a ratio of the resistors, is similarly improved. Where the elements of different resistors of the network are interleaved, the temperature of the different resistors is also made more uniform.