Dual FET sensor for sensing biomolecules and charged ions in an electrolyte
US9068935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2010 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/414
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for biomolecules or charged ions includes a substrate; a first node, a second node, and a third node located in the substrate; a gate dielectric located over the substrate, the first node, the second node, and the third node; a first field effect transistor (FET), the first FET comprising a control gate located on the gate dielectric, and the first node and the second node; and a second FET, the second FET comprising a sensing surface located on the gate dielectric, and the second node and the third node, wherein the sensing surface is configured to specifically bind the biomolecules or charged ions that are to be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.