Semiconductor device
US8411480B2 · kind B2 · utility
17Cited by
30References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Aug 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object is to provide a semiconductor device having a novel structure, which can hold stored data even when not powered and which has an unlimited number of write cycles. A semiconductor device includes a memory cell including a widegap semiconductor, for example, an oxide semiconductor. The memory cell includes a writing transistor, a reading transistor, and a selecting transistor. Using a widegap semiconductor, a semiconductor device capable of sufficiently reducing the off-state current of a transistor included in a memory cell and holding data for a long time can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.