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. 17, 2004
Filed:
Apr. 25, 2001
Thomas R. Schimert, Ovilla, TX (US);
Howard R. Beratan, Richardson, TX (US);
Charles M. Hanson, Dallas, TX (US);
Kevin L. Soch, Nevada City, CA (US);
John H. Tregilgas, Richardson, TX (US);
Raytheon Company, Waltham, MA (US);
Abstract
An infrared detector ( ) includes a substrate ( ) having thereon an array of detector elements ( ). Each detector element has a membrane ( ), which includes an amorphous silicon layer ( ) in contact with at least two electrodes ( ) that are made of a titanium/aluminum alloy which absorbs infrared radiation. In order to obtain a desired temperature coefficient of resistance (TCR), the amorphous silicon layer may optionally be doped. The effective resistance between the electrodes is set to a desired value by appropriate configuration of the electrodes and the amorphous silicon layer. The membrane includes two outer layers ( ) made of an insulating material. Openings ( ) may optionally be provided through the membrane.