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US 2014/0110805 A1Published application
Silicon light trap devices, systems and methods
AssigneeInfineon Technologies Dresden GmbH
InventorTHORALF KAUTZSCH
Life of this patent
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Abstract
Embodiments relate to buried structures for silicon devices which can alter light paths and thereby form light traps. Embodiments of the lights traps can couple more light to a photosensitive surface of the device, rather than reflecting the light or absorbing it more deeply within the device, which can increase efficiency, improve device timing and provide other advantages appreciated by those skilled in the art.
Claims25
A device comprising:
- a silicon structure having a surface to be exposed to light rays;
- and
- a light trap structure formed within the silicon structure spaced apart from the surface and comprising a plurality of light trap elements adjacent one another and each having a surface proximate to and unparallel with the surface to be exposed to light rays.
A light trap structure buried within a silicon structure and comprising:
- a plurality of light trap elements adjacent one another and each having a surface proximate to and unparallel with a surface of the silicon structure to be exposed to light rays.
A method comprising:
- providing a silicon structure;
- and
- forming a plurality of light trap elements adjacent one another in the silicon structure and each having a surface proximate to and unparallel with a surface of the silicon structure to be exposed to light rays.
Dependencies are inferred from the claim text.