Patent ID: 7956434
Filing Date: 2011-06-07
Classification: H01L

Abstract:
1. A device, comprising: a first substrate with circuitry formed thereon; a photodiode bonded to the first substrate and electrically connected to the circuitry, the photodiode comprising a first conductive type ion implantation region selectively provided in a crystalline semiconductor layer, and a second conductive type ion implantation region in contact with one side surface of the first conductive type ion implantation region; a contact plug at a pixel border and electrically connected with the circuitry and the photodiode, wherein a first side surface of the contact plug is electrically contacted with the first conductive type ion implantation region of the photodiode, and a second side surface of the contact plug is insulated by a dielectric; and an upper electrode electrically contacting the second conductive type ion implantation region of the photodiode.