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:
May. 11, 1999
Filed:
Jul. 28, 1997
Michihiro Morimoto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A charge transfer device comprises an array of photodiodes, vertical registers having channels for receiving charge packets from the photodiodes and vertical electrodes for shifting the charge packets along the channels of the vertical registers. A horizontal register has channels for receiving the charge packets from the vertical registers and horizontal electrodes for successively shifting the charge packets across the channels of the horizontal register. An overflow barrier region extends across and is embedded below the channels of the horizontal register for establishing a barrier potential. An overflow drain region is connected to the channels of the horizontal register for discharging charge packets which exceed the barrier potential.