Patent ID: 8878132
Filing Date: 2014-11-04
Classification: G01J,H01L

Abstract:
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 equal to a total surface area of the first well structure exposed by the light shielding layer.