Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 26, 2006
Patent Application Number
10923692
Date Filed
August 24, 2004
Patent Primary Examiner
Patent abstract
A method of fabricating a pixel cell having a shutter gate structure. First and second charge barriers are respectively created between a photodiode and a first charge storage region and between the first storage region and a floating diffusion region. A global shutter gate is formed to control the charge barrier and transfer charges from the photodiode to the first charge storage region by effectively lowering the first charge barrier. A transfer transistor acts to transfer charges from the first storage region to the floating diffusion region by reducing the second charge barrier.
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