CMOS imager pixel designs with storage capacitor

US6960796B2 · kind B2 · utility

Assignee

• Micron Technology, Inc. · US

Inventors

• Howard Rhodes · Boise, US
• Jeff McKee · Meridian, US

Key dates

• Filing date: Nov 26, 2002
• Grant date: Nov 1, 2005
• Expiry date: Nov 26, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/803

Abstract

A charge storage capacitor which is connected to various light sensitive and/or electrical elements of a CMOS imager, as well as methods of formation, are disclosed. The charge storage capacitor may be formed entirely over a field oxide region of the CMOS imager, entirely over an active area of a pixel sensor cell, or partially over a field oxide region and partially over an active pixel area of a pixel sensor cell.