US 12,360,076 B2
Electrochemical sensor with barrier isolating the electrodes from each other and method of forming thereof
Donal McAuliffe, Raheen (IE); Rizwan Gill, Limerick (IE); Alfonso Berduque, Crusheen (IE); Shane Geary, Sixmilebridge (IE); and Raymond J. Speer, Dalkey (IE)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Appl. No. 17/760,438
Filed by Analog Devices International Unlimited Company, Limerick (IE)
PCT Filed Mar. 15, 2021, PCT No. PCT/EP2021/056475
§ 371(c)(1), (2) Date Aug. 9, 2022,
PCT Pub. No. WO2021/197815, PCT Pub. Date Oct. 7, 2021.
Application 17/760,438 is a continuation of application No. 16/836,060, filed on Mar. 31, 2020, granted, now 11,609,207.
Prior Publication US 2023/0125558 A1, Apr. 27, 2023
Int. Cl. G01N 27/404 (2006.01); G01N 27/407 (2006.01)
CPC G01N 27/4076 (2013.01) [G01N 27/404 (2013.01); G01N 27/4077 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrochemical sensor, comprising:
a substrate having one or more gas transmission openings formed therein, the openings arranged to allow gases to pass through the substrate;
a first electrode having a first height, wherein the first height and other dimensions of the first electrode define a first boundary;
a second electrode having a second height, wherein the second height and other dimensions of the second electrode define a second boundary;
a first barrier surrounding the first boundary, wherein the first barrier has a first barrier height;
a second barrier surrounding the second boundary, wherein the second barrier has a second barrier height, and wherein the first barrier is different from the second barrier; and
an electrolyte formed over the first and second barriers and the first and second electrodes, wherein the first barrier and the second barrier are configured to isolate at least part of the first electrode from part of the second electrode.