Transistor circuits for detection and measurement of chemical reactions and compounds

• Main Authors: JOHNSON, KIM, LEVINE, PETER, MILGREW, MARK, REARICK, TODD, FIFE, KEITH
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2014
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; SEMICONDUCTOR DEVICES; TESTING

Embodiments may provide a chemical sensor that includes a plurality of columns of chemically-sensitive pixels, a column interface circuit, and an analog-to-digital converter circuit.Each column of chemically-sensitive pixels may include a plurality of chemically-sensitive pixels formed in rows. Each chemically sensitive pixel may include a chemically-sensitive transistor and a row selection device. The row selection device may form a channel when a row selection line is activated and a gate voltage of the row selection device exceeds a threshold voltage. The channel may be diminished when the row selection line is deactivated. The column interface circuit may be coupled to the column of chemically-sensitive pixels and the analog-to-digital converter circuit may be coupled to the column interface circuit.