Patent ID: 7999292
Filing Date: 2011-08-16
Classification: H01L

Abstract:
1. An image sensor comprising: a first substrate comprising a pixel portion and a peripheral portion; a readout circuitry on the pixel portion; an interlayer dielectric on the first substrate, including on the pixel portion and the peripheral portion; a first lower line passing through the interlayer dielectric to electrically connect with the readout circuitry; a second lower line passing through the interlayer dielectric to electrically connect with the peripheral portion; a photodiode on a portion of the interlayer dielectric corresponding to the pixel portion; a transparent electrode on the interlayer dielectric on which the photodiode is formed, the transparent electrode being electrically connected with the photodiode and the second lower line of the peripheral portion; a first passivation layer on the transparent electrode, the first passivation layer comprising a trench exposing a portion of the transparent electrode; and an upper line on the peripheral portion, including in the trench of the first passivation layer, wherein the upper line shields a side of the photodiode at an edge of the pixel portion.