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:
Jun. 12, 2018
Filed:
Jul. 13, 2015
Applicant:
Sensirion Ag, Stafa, CH;
Inventors:
Assignee:
Sensirion AG, Stafa, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/68 (2006.01); H05B 3/16 (2006.01); G01N 27/12 (2006.01); H05B 3/00 (2006.01); H05B 3/06 (2006.01); H05B 3/22 (2006.01); G01N 27/14 (2006.01);
U.S. Cl.
CPC ...
G01N 27/123 (2013.01); G01N 27/128 (2013.01); G01N 27/14 (2013.01); H05B 3/0014 (2013.01); H05B 3/06 (2013.01); H05B 3/22 (2013.01); H05B 3/68 (2013.01);
Abstract
The sensor device comprises a hotplate on a membrane. The hotplate is heated by a N-fold rotationally symmetric heater structure having N>1 heater elements of identical design. Each heater element comprises an inner section, an intermediate section and an outer section arranged in series, with the inner section having a larger electrical cross section than the outer section. This design allows to heat the hotplate to a homogeneous temperature at moderate supply voltages.