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. 17, 2007
Filed:
May. 19, 2004
Tomohiro Sakamoto, Miyagi, JP;
Yuko Nomura, Miyagi, JP;
Tomohiro Sakamoto, Miyagi, JP;
Yuko Nomura, Miyagi, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
A solid state image pickup device comprising: a semiconductor substrate having a surface layer; charge storage regions disposed in the surface layer; vertical channels disposed in the surface layer adjacent to respective columns of the charge storage regions; vertical transfer electrodes formed above the semiconductor substrate, crossing the vertical channels; a horizontal channel disposed in the surface layer coupled to the vertical channels, having a first portion with transfer stages, each including a barrier region and a well region, and a second portion constituting a gate region with gradually decreasing width, and including an upstream region and a downstream region of different effective impurity concentration, establishing a built-in potential; horizontal transfer electrodes disposed above respective transfer stages of the horizontal channel; an output gate electrode disposed above the gate region; a floating diffusion region disposed in the surface layer coupled to the gate region of the horizontal channel.