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:
Mar. 02, 2021
Filed:
Dec. 26, 2019
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A gas sensor with instantaneous electrical response and thus detection of gas which meets it includes a substrate, a bottom gate electrode on a surface of the substrate, an insulating layer on the surface of the substrate carrying the bottom gate electrode and completely covering the bottom gate electrode. A semiconductor layer is on a surface of the insulating layer away from the substrate. Both the source electrode and the drain electrode, spaced apart, are located on a side of the semiconductor layer away from the substrate each being coupled to the semiconductor layer. The gas sensor further includes a passivation layer covering the semiconductor layer and a top gate electrode on the passivation layer, the top gate electrode being spaced from both the source and drain electrodes. The top gate electrode is made of electrically-conductive and gas-sensitive material. A method for making same is also disclosed.