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US 7,443,006 B2Granted
Photon amplification of image sensors
AssigneeMicron Technology, Inc.
InventorChandra Mouli
Life of this patent
Estimating the term…
Abstract
A pixel cell having a substrate, photo-conversion device, and at least one dielectric layer over the photo-conversion device. The at least one dielectric layer includes one or more rare earth elements for amplifying the number of photons capable of being converted to charge by the photo-conversion device.
Claims14
A pixel cell comprising:
- a substrate;
- a photo-conversion device;
- and
- a dielectric layer over the photo-conversion device, wherein at least one of the photo-conversion device and dielectric layer comprise a rare earth element.
1 more element
A pixel cell comprising:
- a substrate;
- and
- a photo-conversion device;
- the photo-conversion device comprising a rare earth element.
1 more element
A pixel cell comprising:
- a substrate;
- and
- a pinned photodiode, wherein the substrate is of a first conductivity type and the pinned photodiode comprises a region of a second conductivity type within the substrate and a layer doped with a rare earth element at a surface of the substrate and over the region of a second conductivity type.
Dependencies are inferred from the claim text.