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US 2019/0157337 A1Published application
Biometric Sensor and Methods Thereof
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsChin-Min Lin, Cheng San Chou
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Abstract
A sensing apparatus is disclosed. The sensing apparatus includes an image sensor; a collimator above the image sensor, the collimator having an array of apertures; an optical filtering layer between the collimator and the image sensor, wherein the optical filtering layer is configured to filter a portion of light transmitted through the array of apertures; and an illumination layer above the collimator.
Claims20
A sensing apparatus, comprising:
- an image sensor;
- a collimator above the image sensor, the collimator having an array of apertures;
- an optical filtering layer between the collimator and the image sensor, wherein the optical filtering layer is configured to filter a portion of light transmitted through the array of apertures;
- and
- an illumination layer above the collimator.
2 more elements
A device, comprising:
- a touch display panel;
- a light conditioning layer under the touch display panel, the light conditioning layer includes a collimator and an infrared light filter;
- and
- an image sensing layer under the light conditioning layer, the image sensing layer is configured to sense light emitted from the touch display panel.
1 more element
A method of fabricating a sensing apparatus, comprising:
- providing a substrate, the substrate including one or more image sensors;
- depositing an infrared light filtering film above the substrate;
- bonding a semiconductor layer above the infrared light filtering film;
- and
- etching the semiconductor layer to form a plurality of apertures.
2 more elements
Dependencies are inferred from the claim text.