PH sensor

• Main Authors: Muellner, Ernst Georg, Summerfelt, Scott Robert, Meier, Sebastian, Hefele, Markus
• Format: Patent
• Language: English
• Published: 31.01.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

For sensing pH of a fluid, a heating apparatus of a semiconductor die controls a temperature of the fluid to a first temperature. A first voltage of a gate of a floating gate transistor of the semiconductor die is measured while the temperature of the fluid is at the first temperature. Also, the hea...