Flash memory with recessed floating gate
US7342272B2 · kind B2 · utility
8Cited by
14References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/035
Abstract
A flash memory device where the floating gate of the flash memory is defined by a recessed access device. The use of a recessed access device results in a longer channel length with less loss of device density. The floating gate can also be elevated above the substrate a selected amount so as to achieve a desirable coupling between the substrate, the floating gate and the control gate incorporating the flash cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.