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US 10,770,505 B2Granted
Per-pixel performance improvement for combined visible and ultraviolet image sensor arrays
AssigneeIntel Corporation
InventorsRichmond Hicks, Khaled Ahmed
Life of this patent
Estimating the term…
Abstract
Per-pixel performance is improved in a combined visible and ultraviolet image sensor array such as for a hyperspectral camera. In one example, an array of photodetectors is formed on a silicon substrate. A subset of the photodetectors are improved to improve sensitivity to ultraviolet light, and the photodetector array is finished to form an image sensor.
Claims25
An image sensor comprising:
- a silicon substrate;
- a first set of photodetectors on the silicon substrate that have a thin layer that is conductive and is disposed over an active area and that generates a static electrical charge over an n-well of the first set of photodetectors to detect ultra-violet light;
- a second set of photodetectors on the silicon substrate that do not have the thin layer to detect light that is other than ultra-violet light;
- and
- an optical system to direct visible and infrared light to the first and the second sets of photodetectors.
2 more elements
A portable computing system comprising:
- a processor;
- a communications chip coupled to the processor to send and receive images;
- and
- an image sensor coupled to the processor having a silicon substrate, a first set of photodetectors on the silicon substrate that have a thin layer that is conductive and is disposed over an active area that generates a static electrical charge over an n-well of the first set of the photodetectors to detect ultra-violet light, a second set of photodetectors on the silicon substrate that do not have the thin layer to detect light other than ultra-violet light, and an optical system to direct visible and infrared light to the first and the second sets of photodetectors.
1 more element
A camera comprising:
- an image sensor array comprising:
- a silicon substrate,
- a first set of photodetectors on the silicon substrate that have a thin layer that is conductive and is disposed over an active area and that generates a static electrical charge over an n-well of the first set of photodetectors to detect ultra-violet light,
- a second set of photodetectors on the silicon substrate that do not have the thin layer to detect other than ultra-violet light, and
- an optical system to direct visible and infrared light to the first and the second sets of photodetectors.
2 more elements
An image sensor comprising:
- a silicon substrate;
- a first set of photodetectors on the silicon substrate that have a thin layer that is conductive and is disposed over an active area and that generates an electric field arranged to move electrons toward a depletion layer on the photodetectors to detect ultra-violet light;
- a second set of photodetectors with n-wells on the silicon substrate that do not have the thin layer to detect light other than ultra-violet light;
- an optical system to direct visible and infrared light to the first and the second sets of photodetectors.
1 more element
Dependencies are inferred from the claim text.