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.

Date of Patent:
Aug. 22, 2023

Filed:

Jan. 24, 2021
Applicant:

National Tsing Hua University, Hsinchu, TW;

Inventors:

Yu-Lin Wang, Hsinchu, TW;

Shin-Li Wang, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/414 (2006.01); H01L 29/423 (2006.01); G01N 27/333 (2006.01);
U.S. Cl.
CPC ...
G01N 27/414 (2013.01); G01N 27/333 (2013.01); H01L 29/42316 (2013.01);
Abstract

A sensing cell includes: a first electrode coupled to a gate of a transistor, a second electrode spaced apart from the first electrode; a protective layer covering sidewalls of the first electrode and the second electrode and having a first opening and a second opening exposing a first part of the first electrode and a second part of the second electrode, respectively; a first well located on the protective layer and surrounding the first electrode and the second electrode and having a third opening exposing the first part of the first electrode, the second part of the second electrode, and the protective layer between the first opening and the second opening; a second well located on the protective layer surrounding the first well and having a fourth opening to limit a flow of a liquid to be tested; and an ion selective membrane located in the third opening.


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