PHOTOSENSOR DEVICE AND METHOD FOR DETERMINING INCIDENT LIGHT
First Claim
1. A photosensor device, comprising:
- a plurality of first well structures, disposed in a first substrate;
a light shielding layer, covering a portion of the first well structures and exposing at least one first well structure, the first well structures covered by the light shielding layer being adjacent to the first well structure exposed by the light shielding layer, wherein the first well structure exposed by the light shielding layer is capable of generating a first photocurrent according to illumination of an incident light; and
at least one second well structure, disposed in a second substrate and capable of generating a second photocurrent according to illumination of the incident light, wherein a total surface area of the second well structure exposed under the incident light is substantially equal to a total surface area of the first well structure exposed by the light shielding layer.
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Accused Products
Abstract
A photosensor device includes a plurality of first well structures, a light shielding layer, and a plurality of second well structures. The first well structures are disposed in a substrate. The light shielding layer disposed is on the substrate; it covers a portion of the first well structures and exposes the rest portion of the first well structures. The covered first well structures are adjacent to the exposed first well structures exposed. The exposed first well structures generate a first photocurrent according to incident light. The second well structures generate a second photocurrent according to incident light. A total surface area of the second well structures is substantially equal to a total surface area of the exposed first well structures. A method for determining the incident light is also provided.
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Citations
23 Claims
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1. A photosensor device, comprising:
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a plurality of first well structures, disposed in a first substrate; a light shielding layer, covering a portion of the first well structures and exposing at least one first well structure, the first well structures covered by the light shielding layer being adjacent to the first well structure exposed by the light shielding layer, wherein the first well structure exposed by the light shielding layer is capable of generating a first photocurrent according to illumination of an incident light; and at least one second well structure, disposed in a second substrate and capable of generating a second photocurrent according to illumination of the incident light, wherein a total surface area of the second well structure exposed under the incident light is substantially equal to a total surface area of the first well structure exposed by the light shielding layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A photosensor device, comprising:
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a plurality of first well structures; an isolation well structure, disposed at a periphery of each of the first well structures to partition the first well structures, wherein the first well structures are capable of generating a first photocurrent according to illumination of an incident light; and a plurality of second well structures, being capable of generating a second photocurrent according to the incident light, wherein a total surface area of the second well structures illuminated by the incident light is substantially equal to a total surface area of the first well structures illuminated by the incident light. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method of determining an incident light, comprising:
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receiving the incident light by at least one first well structure to generate a first photocurrent; receiving the incident light by at least one second well structure to generate a second photocurrent; and obtaining a spectrum signal of the incident light according to the first photocurrent and the second photocurrent. - View Dependent Claims (20, 21, 22, 23)
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Specification