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:
Jan. 22, 2013
Filed:
Jan. 13, 2011
Yong-fa Wang, Coppell, TX (US);
Scott Edward Beck, Murphy, TX (US);
Yong-Fa Wang, Coppell, TX (US);
Scott Edward Beck, Murphy, TX (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Improved sensors are disclosed that include a heater resistor and/or one or more sensor resistors. In some instances, the heater resistor may be configured to have a zero or near-zero temperature coefficient of resistance (TCR), while one or more sensor resistors may be configured to have a non-zero higher TCR. In some instances, the heater resistor may include a polysilicon material that is doped with a first concentration of dopant, and the one or more sensing elements may include a polysilicon material that is doped with a second higher concentration of dopant. In some cases, the first concentration of dopant may be configured to provide a heater resistor that has a zero or near-zero temperature coefficient of resistance (TCR).