Photonic crystal-based filter for use in an image sensor
AssigneeMicron Technology, Inc.
InventorChandra Mouli
Life of this patent
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Abstract
The invention, in various exemplary embodiments, incorporates a photonic crystal filter into an image sensor. The photonic crystal filter comprises a substrate and a plurality of pillars forming a photonic crystal structure over the substrate. The pillars are spaced apart from each other. Each pillar has a height and a horizontal cross sectional shape. A material with a different dielectric constant than the pillars is provided within the spacing between the pillars. The photonic crystal filter is configured to selectively permit particular wavelengths of electromagnetic radiation to pass through.
Claims16
1-19. (canceled)
A photonic crystal filter for an image sensor, the filter comprising:
- a substrate;
- a plurality of pillars forming a photonic crystal structure over the substrate, the pillars being spaced apart from each other;
- and
- a material within the spacing between the pillars having a dielectric constant that is different than a dielectric constant of the pillars, the photonic crystal structure configured to be selective for particular wavelengths of electromagnetic radiation.
34-58. (canceled)
Dependencies are inferred from the claim text.