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:
Apr. 25, 2006
Filed:
Jul. 10, 2002
Stephen J. Whitney, Lake Zurich, IL (US);
Hugh Hyatt, Bremerton, WA (US);
Louis Rector, Allegany, NY (US);
Stephen J. Whitney, Lake Zurich, IL (US);
Hugh Hyatt, Bremerton, WA (US);
Louis Rector, Allegany, NY (US);
Littlefuse, Inc., Des Plaines, IL (US);
Abstract
The present invention provides a multifunction resistor having an improved voltage variable material ('VVM'). More specifically, the present invention provides a polymer VVM that has been formulated with a high percentage loading of conductive and/or semiconductive particles. A known length of the relatively conductive VVM is placed between adjacent electrodes to produce a desired Ohmic normal state resistance. When an electrostatic discharge event occurs, the VVM of the multifunctional resistor becomes highly conductive and dissipates the ESD threat. One application for this 'resistor' is the termination of a transmission line, which prevents unwanted reflections and distortion of high frequency signals.