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. 12, 2017
Filed:
Jan. 30, 2015
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Antonello Santangelo, Belpasso, IT;
Salvatore Cascino, Gravina di Catania, IT;
Roberto Modica, Mascalucia, IT;
Viviana Cerantonio, Acireale, IT;
Maurizio Moschetti, Gravina di Catania, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A sensor of volatile substances including: a sensitive layer, of a sensitive material that is permeable to a volatile substance and has an electrical permittivity depending upon a concentration of the volatile substance absorbed; a first electrode structure and a second electrode structure capacitively coupled together and arranged so that a capacitance between the first electrode structure and the second electrode structure is affected by the electrical permittivity of the sensitive material; and a supply device, configured to supply a heating current through one between the first electrode structure and the second electrode structure in a first operating condition, so as to heat the sensitive layer.