Electrochemical sensor and method of forming thereof

US11536680B2 · kind B2 · utility

Assignee

• Analog Devices International Unlimited Company · IE

Inventors

• Alfonso Berduque · Crusheen, IE
• Youri Victorovitch Ponomarev · Leuven, BE
• Brendan Cawley · Croom, IE
• Donal McAuliffe · Abbeyleix, IE
• Raymond J. Speer · Dalkey, IE

Key dates

• Filing date: Nov 14, 2019
• Grant date: Dec 27, 2022
• Expiry date: Apr 3, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4045
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Electrochemical sensors include a housing within which an electrolyte is provided over the electrodes. The housing includes an active region, which is the area around the electrodes in which the electrolyte must be positioned to ensure correct operation of the device. The inner walls, base and ceiling of the housing are coated in either hydrophobic or hydrophilic materials, or both, so as to encourage the electrolyte to take a position over the active region, which is defined by the position of the electrodes. In some electrochemical sensors, a combination of hydrophobic and hydrophilic materials is used and the materials can be arranged in a pattern, which encourages the electrolyte to take a position over the active region.