Patent ID: 6707046
Filing Date: 2004-03-16
Classification: H01L

Abstract:
A photodiode detector array for use with an x-ray detector, the photodiode detector array comprising:a layer of intrinsic semiconductor material positioned on a substrate, the layer of intrinsic semiconductor comprising: a first surface and second surface, the second surface positioned proximate to the substrate wherein the first surface is positioned opposite from the second surface; a first doped layer positioned at the first surface and comprising a first conductivity type; a plurality of photodiodes positioned at the second surface, each of the plurality of photodiodes comprising a second doped layer comprising a second conductivity type wherein the first conductivity type is opposite to the second conductivity type; and a plurality of electrical contacts positioned at the second surface, each respective one of said plurality of electrical contacts connected to a different one of said plurality of photodiodes; a scintillator connected to the x-ray detector and optically coupled to the first doped layer positioned at the first surface wherein radiation emanating the scintillator impinges on at least one of the plurality of photodiodes; and a plurality of conductors wherein each of the plurality of conductors is connected to a different one of the plurality of electrical contacts, the plurality of conductors extending along the second surface of the layer of intrinsic semiconductor material.