High voltage generator and word line driving high voltage generator of memory device
US8035441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Apr 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A high voltage generator includes: a detection unit for comparing a reference voltage with a high voltage and detecting a voltage level of the high voltage; an oscillator selection unit for generating a first control signal and a second control signal in response to an output signal of the detection unit and a selection signal corresponding to a data operation mode; an oscillator for generating clock signals having different frequencies in response to the first control signal and the second control signal; and a pumping unit for generating the high voltage by performing a charge pumping operation in response to the clock signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.