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).
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Patent number: 7504767Abstract: 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: GrantFiled: March 28, 2005Date of Patent: March 17, 2009Assignee: Micron Technology, Inc.Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: 7329552Abstract: 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: GrantFiled: February 5, 2002Date of Patent: February 12, 2008Assignee: Micron Technology, Inc.Inventors: Ji Ung Lee, John Lee, Benham Moradi
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Patent number: 7239075Abstract: 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: GrantFiled: May 2, 2006Date of Patent: July 3, 2007Assignee: Micron Technology, Inc.Inventors: Kanwal K. Raina, Benham Moradi
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Publication number: 20070029918Abstract: 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: ApplicationFiled: May 2, 2006Publication date: February 8, 2007Inventors: Kanwal Raina, Benham Moradi
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Patent number: 7097526Abstract: 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: GrantFiled: June 27, 2005Date of Patent: August 29, 2006Assignee: Micron Technology, Inc.Inventors: Kanwal K. Raina, Benham Moradi
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Publication number: 20050266765Abstract: 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: ApplicationFiled: June 27, 2005Publication date: December 1, 2005Inventors: Kanwal Raina, Benham Moradi
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Publication number: 20050168130Abstract: 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: ApplicationFiled: March 28, 2005Publication date: August 4, 2005Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: 6911766Abstract: 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: GrantFiled: August 19, 2003Date of Patent: June 28, 2005Assignee: Micron Technology, Inc.Inventors: Kanwal K. Raina, Benham Moradi
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Patent number: 6900586Abstract: 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: GrantFiled: August 4, 2003Date of Patent: May 31, 2005Assignee: Micron Technology, Inc.Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: 6726518Abstract: 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: GrantFiled: July 19, 2002Date of Patent: April 27, 2004Assignee: Micron Technology, Inc.Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Publication number: 20040036399Abstract: 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: ApplicationFiled: August 19, 2003Publication date: February 26, 2004Inventors: Kanwal K. Raina, Benham Moradi
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Publication number: 20040027051Abstract: 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: ApplicationFiled: August 4, 2003Publication date: February 12, 2004Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: 6635983Abstract: 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: GrantFiled: September 2, 1999Date of Patent: October 21, 2003Assignee: Micron Technology, Inc.Inventors: Kanwal K. Raina, Benham Moradi
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Patent number: 6630781Abstract: 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: GrantFiled: June 20, 2001Date of Patent: October 7, 2003Assignee: Micron Technology, Inc.Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: 6504170Abstract: 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: GrantFiled: October 2, 2000Date of Patent: January 7, 2003Assignee: Micron Technology, Inc.Inventors: J. Ung Lee, John Lee, Benham Moradi
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Publication number: 20020182969Abstract: 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: ApplicationFiled: July 19, 2002Publication date: December 5, 2002Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Publication number: 20020098630Abstract: 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: ApplicationFiled: February 5, 2002Publication date: July 25, 2002Inventors: Ji Ung Lee, John Lee, Benham Moradi
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Patent number: 6422907Abstract: 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: GrantFiled: February 14, 2001Date of Patent: July 23, 2002Assignee: Micron Technology, Inc.Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Publication number: 20020014832Abstract: 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: ApplicationFiled: June 20, 2001Publication date: February 7, 2002Inventors: Benham Moradi, Zhong-Yi Xia, Tianhong Zhang
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Patent number: RE40490Abstract: 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: GrantFiled: November 12, 2003Date of Patent: September 9, 2008Assignee: Micron Technology, Inc.Inventors: Tianhong Zhang, Zhongyi Xia, John Lee, Benham Moradi