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US 12,480,813 B2Granted
Multispectral imager
AssigneesSTMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.
InventorsJonathan Steckel, Andras G. Pattantyus-Abraham
Life of this patent
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Abstract
An imaging device includes a first layer made of quantum dots and a second layer including at least two filter regions extending over the first layer. The at least two filter regions are configured to transmit distinct wavelengths. The quantum dots of the first layer are configured to generate charges upon reception of light in the distinct wavelengths.
Claims13
A device, comprising:
- a first layer made of semiconductor nanoparticle quantum dots fixed in an insulating resin material, each semiconductor nanoparticle quantum dot comprising a semiconductor core surrounded by a shell configured to passivate the semiconductor core;
- a second layer made of a conductive material resting on the first layer;
- a third layer resting on the second layer, said third layer including at least two filter regions, the at least two filter regions being configured to transmit distinct wavelengths;
- a fourth layer below the first layer, said fourth layer including a conductive via aligned with each filter region of said at least two filter regions;
- wherein the first layer is configured to generate charges upon reception of said wavelengths;
- and
- wherein said charges produce a voltage between the second layer and each conductive via of the fourth layer.
4 more elements
Dependencies are inferred from the claim text.