Patent ID: 7470965
Filing Date: 2008-12-30
Classification: H01L

Abstract:
1. A solid-state imaging device comprising: a plurality of photodiodes provided on a semiconductor substrate; a plurality of electrodes for outputting an electrical charge generated in each of the plurality of photodiodes; a plurality of interconnections, which are connected to the plurality of electrodes, for applying a voltage to the plurality of electrodes; an insulating film provided above the plurality of interconnections and the plurality of photodiodes; a plurality of reflecting walls for reflecting light; a plurality of micro lenses provided above the plurality of reflecting walls such that the plurality of micro lenses respectively correspond to the plurality of photodiodes; a plurality of apertures which respectively correspond to the plurality of photodiodes so as to allow light to enter the respective photodiodes; a photoreceiving region including a plurality of pixels, each of which at least includes a photodiode, an electrode, a reflecting wall, a micro lens, and an aperture, arranged in a matrix form and a plurality of intralayer lenses provided on the insulating film such that the plurality of intralayer lenses respectively correspond to the plurality of photodiodes, wherein a middle point of the plurality of reflecting walls opposing each other across an aperture in a peripheral pixel within the photoreceiving region is displaced, by an amount of a first displacement, from a center of the aperture included in the same peripheral pixel toward the center of the photoreceiving region, and the greater the distance between the peripheral pixel within the photoreceiving region and the center of the photoreceiving region becomes, the greater the amount of the first displacement becomes, a center of a micro lens in a peripheral pixel within the photoreceiving region is displaced, by an amount of a second displacement, from a center of an aperture included in the same peripheral pixel toward the center of the photoreceiving region, and the greater the distance between the peripheral pixel within the photoreceiving region and the center of the photoreceiving region becomes, the greater the amount of the second displacement becomes, a center of an intralayer lens in a peripheral pixel within the photoreceiving region is displaced, by an amount of a third displacement, from a center of an aperture included in the same peripheral pixel toward a center of the photoreceiving region, the greater the distance between the peripheral pixel within the photoreceiving region and the center of the photoreceiving region becomes, the greater the amount of the third displacement becomes, and the amount of the first displacement is smaller than the amount of the second displacement.