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. 31, 1996
Filed:
Nov. 29, 1995
Mitsuteru Kimura, Miyagi-gun, Miyagi-ken, JP;
Takeshi Kudo, Kanagawa, JP;
Terumo Kabushiki Kaisha, Tokyo, JP;
Other;
Abstract
An infrared radiation sensor of high accuracy is provided which is suitable for a thermometer to be used for effecting noncontacting determination of a temperature of a subject under test, particularly a temperature of a tympanic membrane, by utilizing the temperature characteristics of the saturated current flowing in the reverse direction through a Schottky junction diode. The infrared radiation sensor comprises an n type single crystal area 2 formed in the shape of a thin film by doping a sensor substrate 8 made of p type semiconductor with an n type impurity through the surface of the sensor substrate, a temperature sensor element 1 formed in the n type single crystal area 2, a hollow part 6 formed by removing by electrochemically etching the p type semiconductor from the substantially lower and peripheral parts of the n type single crystal area 2, and a thermally and electrically insulating thin film bridge structure having the n type single crystal area 2 in the shape of a thin film provided with the temperature sensor element 1 carried thereon.