Patents by Inventor Benham Moradi

Benham Moradi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7504767
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge are provided. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: March 17, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: 7329552
    Abstract: The present invention includes field effect transistors, field emission apparatuses, thin film transistors, and methods of forming field effect transistors. According to one embodiment, a field effect transistor includes a semiconductive layer configured to form a channel region; a pair of spaced conductively doped semiconductive regions in electrical connection with the channel region of the semiconductive layer; a gate intermediate the semiconductive regions; and a gate dielectric layer intermediate the semiconductive layer and the gate, the gate dielectric layer being configured to align the gate with the channel region of the semiconductive layer. In one aspect, chemical-mechanical polishing self-aligns the gate with the channel region. According to another aspect, a field emission device includes a transistor configured to control the emission of electrons from an emitter.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: February 12, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Ji Ung Lee, John Lee, Benham Moradi
  • Patent number: 7239075
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: July 3, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Kanwal K. Raina, Benham Moradi
  • Publication number: 20070029918
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Application
    Filed: May 2, 2006
    Publication date: February 8, 2007
    Inventors: Kanwal Raina, Benham Moradi
  • Patent number: 7097526
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: August 29, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Kanwal K. Raina, Benham Moradi
  • Publication number: 20050266765
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Application
    Filed: June 27, 2005
    Publication date: December 1, 2005
    Inventors: Kanwal Raina, Benham Moradi
  • Publication number: 20050168130
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge are provided. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Application
    Filed: March 28, 2005
    Publication date: August 4, 2005
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: 6911766
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: June 28, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Kanwal K. Raina, Benham Moradi
  • Patent number: 6900586
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge are provided. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: May 31, 2005
    Assignee: Micron Technology, Inc.
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: 6726518
    Abstract: A method for making an electrode structure and an electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the upper surface of the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: April 27, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Publication number: 20040036399
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 26, 2004
    Inventors: Kanwal K. Raina, Benham Moradi
  • Publication number: 20040027051
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 12, 2004
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: 6635983
    Abstract: Described herein is a resistor layer for use in field emission display devices and the like, and its method of manufacture. The resistor layer is an amorphous silicon layer doped with nitrogen and phosphorus. Nitrogen concentration in the resistor layer is preferably between about 5 and 15 atomic percent. The presence of nitrogen and phosphorus in the silicon prevents diffusion of Si atoms into metal conductive layers such as aluminum, even up to diffusion and packaging temperatures. The nitrogen and phosphorus also prevent defects from forming at the boundary between the resistor layer and metal conductor. This leads to better control over shorting and improved resistivity in the resistor.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: October 21, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Kanwal K. Raina, Benham Moradi
  • Patent number: 6630781
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: October 7, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: 6504170
    Abstract: The present invention includes field effect transistors, field emission apparatuses, thin film transistors, and methods of forming field effect transistors. According to one embodiment, a field effect transistor includes a semiconductive layer configured to form a channel region; a pair of spaced conductively doped semiconductive regions in electrical connection with the channel region of the semiconductive layer; a gate intermediate the semiconductive regions; and a gate dielectric layer intermediate the semiconductive layer and the gate, the gate dielectric layer being configured to align the gate with the channel region of the semiconductive layer. In one aspect, chemical-mechanical polishing self-aligns the gate with the channel region. According to another aspect, a field emission device, includes a transistor configured to control the emission of electrons from an emitter.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: January 7, 2003
    Assignee: Micron Technology, Inc.
    Inventors: J. Ung Lee, John Lee, Benham Moradi
  • Publication number: 20020182969
    Abstract: A method for making an electrode structure and an electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the upper surface of the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode.
    Type: Application
    Filed: July 19, 2002
    Publication date: December 5, 2002
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Publication number: 20020098630
    Abstract: The present invention includes field effect transistors, field emission apparatuses, thin film transistors, and methods of forming field effect transistors. According to one embodiment, a field effect transistor includes a semiconductive layer configured to form a channel region; a pair of spaced conductively doped semiconductive regions in electrical connection with the channel region of the semiconductive layer; a gate intermediate the semiconductive regions; and a gate dielectric layer intermediate the semiconductive layer and the gate, the gate dielectric layer being configured to align the gate with the channel region of the semiconductive layer. In one aspect, chemical-mechanical polishing self-aligns the gate with the channel region. According to another aspect, a field emission device includes a transistor configured to control the emission of electrons from an emitter.
    Type: Application
    Filed: February 5, 2002
    Publication date: July 25, 2002
    Inventors: Ji Ung Lee, John Lee, Benham Moradi
  • Patent number: 6422907
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the upper surface of the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: July 23, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Publication number: 20020014832
    Abstract: An electrode structure for a display device comprising a gate electrode proximate to an emitter and a focusing electrode separated from the gate electrode by an insulating layer containing a ridge. When the focusing electrode is an aperture-type electrode, the ridge protrudes closer to the emitter than the sidewall of the gate electrode or the sidewall of the focusing electrode. When the focusing electrode is a concentric-type electrode, the ridge protrudes above the upper surface of the gate electrode or the upper surface of the focusing electrode. A method for making the aperture-type and concentric-type electrode structures is described. A display device containing such electrode structures is also described. By forming an insulating ridge between the gate and focusing electrodes, shorting between the two electrodes is reduced and yield enhancement increased.
    Type: Application
    Filed: June 20, 2001
    Publication date: February 7, 2002
    Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
  • Patent number: RE40490
    Abstract: A method and apparatus for programmable field emission display comprising an array of cathodoluminescent elements. Each cathodoluminescent element in the array is responsive to separate select signals to cause light to be emitted from said display at a location in the array corresponding to each separate cathodoluminescent element. In one embodiment, to account for processing variation and the like, each cathodoluminescent element is provided with a programmable element for adjusting the operating level of the associated cathodoluminescent element in response to select signals of predetermined voltage levels. Each programmable element includes a charge storage device and is initially programmed by storing a level of electric charge thereon such that uniformity of operation among the plurality of cathodoluminescent elements in the array is improved. In one embodiment the programmable element comprises a floating gate transistor.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: September 9, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Tianhong Zhang, Zhongyi Xia, John Lee, Benham Moradi