Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Charge transfer device
Reexamination Certificate
2011-07-12
2011-07-12
Vu, Hung (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Charge transfer device
C257S292000
Reexamination Certificate
active
07977711
ABSTRACT:
The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.
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Notice of Allowance: U.S. Appl. No. 12/172,309, Title: “Pixel Sensor Cell for Collecting Electrons and Holes”, Filing Date: Jul. 14, 2008, Date Mailed Jan. 27, 2010.
Notice of Allowance: U.S. Appl. No. 12/172,304, Title: “Method of Forming a Pixel Sensor Cell for Collecting Electrons and Holes”, Filing Date: Jul. 14, 2008, Date Mailed: Mar. 17, 2009.
Office Action: U.S. Appl. No. 12/172,306, Title: “Pixel Sensor Cell for Collecting Electrons and Holes”, Filing Date:: Jul. 14, 2008, Date Mailed: Mar. 11, 2009.
Response to Non-Final Rejection: U.S. Appl. No. 12/172,306, Title: “Pixel Sensor Cell for Collecting Elections and Holes”, Filing Date: Jul. 14, 2008, Date Filed: Jun. 11, 2009.
Notice of Allowance: U.S. Appl. No. 12/172,306, Title: “Pixel Sensor Cell for Collecting Elections and Holes”, Filing Date: Jul. 14, 2008, Date Mailed: Aug. 5, 2009.
Office Action: U.S. Appl. No. 12/172,309, Title: “Pixel Sensor Cell for Collecting Elections and Holes”, Filing Date: Jul. 14, 2008, Date Mailed: Jun. 29, 2009.
Response to Non-Final Rejection: U.S. Appl. No. 12/172,309, Title: Pixel Sensor Cell for Collecting Elections and Holes, Filing Date: Jul. 14, 2008, Date Filed: Sep. 29, 2009.
Office Action: U.S. Appl. No. 11/850,776, Title: “Design Structure for Pixel Sensor Cell that Collects Electrons and Holes,” Filing Date: Sep. 6, 2007, Date Mailed May 27, 2010.
Response to Non-Final Rejection filed on Oct. 27, 2010 in: U.S. Appl. No. 11/850,776, Title: “Design Structure for Pixel Sensor Cell that Collects Electrons and Holes,” Filing Date Sep. 6, 2007.
Final Office Action: U.S. Appl. No. 11/850,776, Title: Structure for Pixel Sensor Cell that Collects Electrons and Holes, File Date: Sep. 6, 2007, Date Mailed: Jan. 6, 2011.
Response to Final Office Action filed on Mar. 10, 2011, U.S. Appl. No. 11/850,776, Title: “Design Structure for Pixel Sensor Cell that Collects Electrons and Holes,” Filing Date Sep. 6, 2007.
Examiner Interview Summary transmitted on Mar. 15, 2011, U.S. Appl. No. 11/850,776, Title: “Design Structrure for Pixel Sensor Cell that Collects Electrons and Holes,” Filling Date Sep. 6, 2007.
Adkisson James W.
Bryant Andres
Ellis-Monaghan John J.
Jaffe Mark D.
Johnson Jeffrey B.
Canale Anthony J.
International Business Machines - Corporation
Vu Hung
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