Charge pump device and image sensor including the same
US11038419B2 · kind B2 · utility
0Cited by
12References
20Claims
0Family size
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Key dates
| Filing date | Sep 25, 2020 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Sep 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/071
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A charge pump device is configured to generate an output voltage from a square wave, where the charge pump device includes a semiconductor layer; first and second outer wells; a first inner well formed in the first outer well; a second inner well formed in the second outer well; a first capacitor, to which the input signal is applied, and connected to the first outer well; and a second capacitor connected to the first capacitor and second outer well, wherein the first voltage is applied to the first outer well, and a voltage that is lower than the first voltage is applied to the second outer well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.