Curved Light Sensor
First Claim
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4-1. The curved light sensor as in claim 1, wherein the patterned stress film is formed over the non-light receiving surface.
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Abstract
An optical system can include a curved light sensor and an optical system positioned in front of the curved light sensor. The curved light sensor includes a substrate and a patterned stress film formed over at least surface of the substrate.
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Citations
28 Claims
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4-1. The curved light sensor as in claim 1, wherein the patterned stress film is formed over the non-light receiving surface.
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11. A method for producing a curved light sensor, comprising:
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attaching a support wafer to a first surface of a sensor wafer, wherein the sensor wafer includes multiple light sensors and the first surface corresponds to a light receiving surface of the multiple light sensors; forming a stress film over a second surface of the sensor wafer; forming a pattern in the stress film over each light sensor; and removing the support wafer from the first surface of the sensor wafer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for producing a curved light sensor, comprising:
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attaching a dicing tape to a first surface of a sensor wafer, wherein the sensor wafer includes multiple light sensors; forming a stress film over a second surface of the sensor wafer; forming a pattern in the stress film over each light sensor; and singulating the light sensors, wherein each light sensor includes a respective patterned stress film over the second surface of the light sensor. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. An optical assembly, comprising:
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a curved light sensor, comprising; a light sensor comprising a light receiving surface and a non-light receiving surface; and a patterned stress film formed over at least one surface of the light sensor; and an optical system in optical communication with the curved light sensor, wherein the optical system is configured to optimize light received by the light receiving surface of the light sensor.
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Specification