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:
Nov. 09, 2021
Filed:
Apr. 16, 2019
Stmicroelectronics S.r.l., Agrate Brianza, IT;
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
Abstract
A device for detecting a chemical species including a Geiger mode avalanche photodiode, which comprises a body of semiconductor material delimited by a front surface. The semiconductor body includes: a cathode region having a first type of conductivity, which forms the front surface; and an anode region having a second type of conductivity, which extends within the cathode region starting from the front surface. The detection device further includes: a dielectric region, which extends on the front surface; and a sensitive region, which is arranged on top of the dielectric region and electrically coupled to the anode region and has a resistance that depends upon the concentration of the chemical species.