Image sensors in which pixel array and memory cell array are merged and electronic devices including the same
US10841527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8063
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor in which a pixel array and a memory cell array are merged includes a first semiconductor chip including the pixel array and the memory cell array in a same semiconductor chip, and a second semiconductor chip overlapping the first semiconductor chip in a vertical direction. The second semiconductor chip includes a first logic circuit that controls the pixel array, an analog-to-digital converter (ADC) that converts an analog signal output from the pixel array under control of the first logic circuit to a digital signal, and a second logic circuit that stores data that is output from the ADC circuit based on the digital signal to the memory cell array of the first semiconductor chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.