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:
Sep. 22, 2009
Filed:
Oct. 02, 2003
Hirokazu Sekine, Kanagawa-ken, JP;
Hirokazu Sekine, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In the pixel portions of the CMOS image sensor, a plurality of unit cells are arranged in the row and column directions at a predetermined pitch respectively in a two-dimensional plain forming a matrix. Each unit cell includes the first and second photodiodes PDa and PDb, the first and second transfer transistors Ta and Tb for transferring the stored charges of the photodiodes to their common floating junctions FJ, the reset transistors R for resetting the potential of the floating junctions FJ, the driver transistors D whose output potential is controlled by the potential of the floating junctions FJ, and the address transistors A for selectively driving the driver transistors D. With the arrangement of the elements and wires in the pixel portions, the integration can be increased and the resolution in the horizontal and vertical directions can be improved.