公开(公告)号：US20180100825A1

公开(公告)日：2018-04-12

申请号：US15836587

申请日：2017-12-08

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Antonello SANTANGELO ,  Salvatore CASCINO ,  Roberto MODICA ,  Viviana CERANTONIO ,  Maurizio MOSCHETTI

IPC: G01N27/22

CPC classification number: G01N27/225 ,  G01N27/22 ,  G01N27/223 ,  G01N27/227

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.

公开(公告)号：US20150219582A1

公开(公告)日：2015-08-06

申请号：US14611062

申请日：2015-01-30

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Antonello SANTANGELO ,  Salvatore CASCINO ,  Roberto MODICA ,  Viviana CERANTONIO ,  Maurizio MOSCHETTI

IPC: G01N27/22 ,  C23C14/34

CPC classification number: G01N27/225 ,  G01N27/22 ,  G01N27/223 ,  G01N27/227

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.

Abstract translation: 一种挥发性物质的传感器，包括：敏感层，敏感材料，其可渗透挥发性物质，并且具有取决于所吸收挥发性物质浓度的介电常数; 第一电极结构和第二电极结构，电容耦合在一起并且布置成使得第一电极结构和第二电极结构之间的电容受到敏感材料的电介电常数的影响; 以及供给装置，被配置为在第一操作条件下，通过第一电极结构和第二电极结构之间的加热电流供应加热电流，以加热敏感层。