Voltage switching circuit and semiconductor memory device having the same
US11309037B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2020 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jun 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/56
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voltage switching circuit selectively transfers voltages applied to a first input terminal and a second input terminal to a first output terminal and a second output terminal. The voltage switching circuit includes a first transistor and a second transistor. The first transistor is formed on a first well on a substrate, and is coupled between the first input terminal and the first output terminal. The second transistor is formed on a second well different from the first well, and is coupled to the second input terminal. In a first mode in which a first voltage applied to the first input terminal is transferred to the first output terminal and the second output terminal, the first transistor is turned on and the second transistor is turned off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.