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. 29, 2017
Filed:
Jun. 27, 2014
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Fabrizio Porro, Portici, IT;
Valeria Casuscelli, Naples, IT;
Francesco Foncellino, Caserta, IT;
Giovanna Salzillo, Teverola, IT;
Luigi Giuseppe Occhipinti, Ragusa, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
It is described an integrated gas sensor device comprising a silicon substrate and an oxide layer on the silicon substrate, as well as a working electrode, a counter electrode and a reference electrode, on the oxide layer, the working electrode and the counter electrode having respective active area exposed to an environmental air through at least a plurality of first openings and a plurality of second openings in the oxide layer in correspondence of the working electrode and of the counter electrode, further comprising an electrolyte layer portion and a hydrogel layer portion on the electrolyte layer portion, the electrolyte and hydrogel layer portions having a same size, suitable to cover at least the working, counter and reference electrodes, the hydrogel layer portion acting as a 'quasi solid state' water reservoir.