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:
Oct. 19, 2021
Filed:
May. 15, 2019
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Qing Cao, Westchester, NY (US);
Jianshi Tang, Elmsford, NY (US);
Ning Li, White Plains, NY (US);
Ying He, Yorktown Heights, NY (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/543 (2006.01); G01N 27/07 (2006.01); H01L 41/187 (2006.01); H01L 41/23 (2013.01); H01L 41/314 (2013.01); H01L 41/29 (2013.01); H01L 41/18 (2006.01);
U.S. Cl.
CPC ...
G01N 33/5438 (2013.01); G01N 27/07 (2013.01); H01L 41/18 (2013.01); H01L 41/1875 (2013.01); H01L 41/23 (2013.01); H01L 41/29 (2013.01); H01L 41/314 (2013.01);
Abstract
Methods of using and making chemical sensors include exposing a functionalized electrode to a substance to be tested. The functionalized electrode is electrically connected to a sensor having a piezoelectric element and a piezoresistive element. A voltage on the functionalized electrode controls a resistance of the piezoresistive element. A current is measured passing through the piezoresistive element. The presence of the analyte is determined based on the measured current.