The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2002
Filed:
Nov. 16, 2000
Rodney A. Mattson, Mentor, OH (US);
Chris J. Vrettos, Willoughby, OH (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A CT scanner ( ) includes a reconstruction processor ( ) for reconstructing an image from digital signals from detector arrays ( ). Each detector array includes scintillation crystals ( ) arranged in an array for converting x-ray radiation into light. An array of back-illuminated photo diodes ( ) is mounted beneath the scintillation crystal array for converting the light emitted from the scintillation crystals into electrical charge. The electrical charge from the back-illuminated photodiodes is transmitted via a path orthogonal to the detector array ( ) to signal processing circuitry ( ). The back-illuminated photodiode has a backside ( ) which is in optical communication with the crystal array ( ) and which is optically transmissive to photons of light emanating from the crystal. The converted electrical charge leaves the photodiode via electrical connections ( ) or bump bonds ( ) on the front side of the photodiode. This arrangement allows a plurality of paths ( ) through the substrate ( ) supporting the photodiode to provide electrical connectivity ( ) from the array to processing circuitry ( ), reducing or eliminating the bottleneck of electrical leads from conventional arrays.