Patent ID: 7075091

Claim:
A photodiode detector assembly for use with an ionizing radiation detector, the assembly comprising: a first layer comprising a first side and a second side and an array of backlit photodiodes disposed at the second side; and a second layer disposed proximate to and opposing the second side of the first layer, the second layer comprising thru vias; wherein light rays entering the first layer at the first side and impinging the backlit photodiodes at the second side result in electrical signals at the thru vias of the second layer, thereby providing electrical output signals from the backlit photodiodes at a distance from to backlit photodiodes; wherein the first layer has a uniform thickness of equal to or less tan about 100 microns; and wherein the array of bandit photodiodes includes neighboring backlit photodiodes having a cell-to-cell signal crosstalk of equal to or less tan about 2% in response to the first layer having a uniform thickness of equal to or less than about 100 microns.