Semiconductor device and method of driving semiconductor device
US8514609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2011 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B41/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The number of wirings per unit memory cell is reduced by sharing a bit line by a writing transistor and a reading transistor. Data is written by turning on the writing transistor so that a potential of the bit line is supplied to a node where one of a source and drain electrodes of the writing transistor and a gate electrode of the reading transistor are electrically connected, and then turning off the writing transistor so that a predetermined amount of charge is held in the node. Data is read by using a signal line connected to a capacitor as a reading signal line or a signal line connected to one of a source and drain electrodes of the reading transistor as a reading signal line so that a reading potential is supplied to the reading signal line, and then detecting a potential of the bit line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.