Large area X-ray imager and method of fabrication

U.S. Patent Number: 5381014

Abstract: A large area X-ray image capture element is fabricated by juxtaposing a plurality of discrete array modules in an assembly over the top surface of a base plate, such that each module is disposed adjacent at least one other module to form a two-dimensional mosaic of modules. Each of the discrete modules includes a plurality of thin-form transistors arrayed adjacent the top surface of a dielectric substrate wherein at least one precision-ground edge forms a precise abutment with a precision-ground edge of another substrate. A continuous radiation detecting layer is disposed over the plurality of juxtaposed modules, and produces a latent radiographic image in the form of electrical charges. Such a method minimizes or totally voids the non-radiation-detecting areas created at the borders between the array modules.

Inventors: Jeromin; Lothar S. (Newark, DE), Robinson, Jr.; George D. (Sewell, NJ)

Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE)

Application Number: 08/174,861

Issued: 1995-01-10

Expired: 2007-01-10

Classes: 250/370.09 ; 250/580; 257/E27.132; 257/E27.146

Field of search: 250/370.08,370.09,370.11,366,580,332 378/98.8

Click the image above to view patent images at uspto.gov within a frame.

Click here for the fulltext page on uspto.gov within a frame.