2DEG-based sensor and device for ECG sensing
US9675262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6824
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed technology generally relates to sensors comprising a two-dimensional electron gas (2DEG), and more particularly to an AlGaN/GaN 2DEG-based sensor for sensing signals associated with electrocardiograms, and methods of using the same. In one aspect, a sensor comprises a substrate and a GaN/AlGaN hetero-junction structure formed on the substrate and configured to form a two-dimensional electron gas (2DEG) channel within the GaN/AlGaN hetero-junction structure. The sensor additionally comprises Ohmic contacts connected to electrical metallizations and to the 2DEG channel, wherein the GaN/AlGaN hetero-junction structure has a recess formed between the Ohmic contacts. The sensor further comprises a dielectric layer formed on a top surface of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.