Patents by Inventor Kevin Shea

Kevin Shea 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).

  • Publication number: 20090275185
    Abstract: A method of forming a capacitor includes providing material having an opening therein over a node location on a substrate. A shield is provided within and across the opening, with a void being received within the opening above the shield and a void being received within the opening below the shield. The shield comprises a nitride. Etching is conducted within the opening through the nitride-comprising shield. After the etching, a first capacitor electrode is formed within the opening in electrical connection with the node location. A capacitor dielectric and a second capacitor electrode are formed operatively adjacent the first capacitor electrode. Other aspects and implementations are contemplated.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 5, 2009
    Inventors: Kevin Shea, Brett Busch, Farrell Good, Irina Vasilyeva, Vishwanath Bhat
  • Patent number: 7541635
    Abstract: In one embodiment, a method includes selectively depositing a collar material between a number of memory containers. The collar material along a side of a first memory container of the number of memory containers is in contact with the collar material along a side of a second memory container. An opening exists between the collar material along a corner of the memory container and the collar material along a corner of a third memory container.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: June 2, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Kevin Torek, Kevin Shea, Niraj B. Rana, Zhiping Yin
  • Patent number: 7468323
    Abstract: An etching process includes providing a dielectric first film on a substrate and a sacrificial second film on the dielectric first film. A conductive structure such as a container capacitor is formed in a recess in the first and second films. The conductive structure is exposed as to its external surface by an etch process that resists destructive collapse of the conductive structure.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: December 23, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Kevin Torek, Kevin Shea, Thomas Graettinger
  • Patent number: 7442319
    Abstract: The use of an ammonium hydroxide spike to a hot tetra methyl ammonium hydroxide (TMAH) solution to form an insitu poly oxide decapping step in a polysilicon (poly) etch process, results in a single step rapid poly etch process having uniform etch initiation and a high etch selectivity, that may be used in manufacturing a variety of electronic devices such as integrated circuits (ICs) and micro electro-mechanical (MEM) devices. The etching solution is formed by adding 35% ammonium hydroxide solution to a hot 12.5% TMAH solution at about 70° C. at a rate of 1% by volume, every hour. Such an etch solution and method provides a simple, inexpensive, single step self initiating poly etch that has etch stop ratios of over 200 to 1 over underlying insulator layers and TiN layers.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: October 28, 2008
    Assignee: Micron Technology, Inc.
    Inventor: Kevin Shea
  • Publication number: 20080245033
    Abstract: Apparatus and method, suitable for cable wrapping apparatus for securing the cable of a spooled or a coiled product and for packaging such products. Apparatus and method is also suitable for quick switchover from a finished cable product to a new cable product so that the productivity of the cable wrapping apparatus can be increased.
    Type: Application
    Filed: May 17, 2006
    Publication date: October 9, 2008
    Inventors: Terence Kevin Shea, Daniel Shelander
  • Publication number: 20080099817
    Abstract: Methods for etching metal nitrides and metal oxides include using ultradilute HF solutions and buffered, low-pH HF solutions containing a minimal amount of the hydrofluoric acid species H2F2. The etchant can be used to selectively remove metal nitride layers relative to doped or undoped oxides, tungsten, polysilicon, and titanium nitride. A method is provided for producing an isolated capacitor, which can be used in a dynamic random access memory cell array, on a substrate using sacrificial layers selectively removed to expose outer surfaces of the bottom electrode.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 1, 2008
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Kevin Shea
  • Publication number: 20080048285
    Abstract: A laminated wafer sensor structure includes a housing layer having pocket openings formed therein, a circuit layer having a sensor element and electronic components mounted for registration with the pocket openings in the housing layer, and a rigid back layer. The laminated structure is suitable for handling by conventional robotic wafer handling systems. The wafer sensor structure is adapted for electrical connection to a base station that is also adapted for connection to a host computer system to facilitate communication among the sensor structure, the base station and the host computer.
    Type: Application
    Filed: May 10, 2007
    Publication date: February 28, 2008
    Inventors: Jim Schloss, Michele Winz, Sam Mallicoat, Wolfram Urbanek, Guang Li, Larry Potter, Kevin Shea
  • Patent number: 7255255
    Abstract: A method of dispensing a strip product using a strip fabrication assembly, by entering arm positions for guide arms of the assembly into a guide arm controller device, moving the corresponding guide arms of the strip fabrication assembly to the respective arm positions using the guide arm controller device, and feeding different strip materials through the assembly using the guide arms, after moving them to the entered arm positions. The guide arms are coupled to threaded rods, and are moved by actuating servo motors which are coupled to the threaded rods. The guide arm controller device may include a programmable logic controller, which has been programmed to control the servo motors in response to entry of guide arm positions.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: August 14, 2007
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Kevin A. Shea, Curtis L. Carter
  • Publication number: 20070178705
    Abstract: The use of an ammonium hydroxide spike to a hot tetra methyl ammonium hydroxide (TMAH) solution to form an insitu poly oxide decapping step in a polysilicon (poly) etch process, results in a single step rapid poly etch process having uniform etch initiation and a high etch selectivity, that may be used in manufacturing a variety of electronic devices such as integrated circuits (ICs) and micro electromechanical (MEM) devices. The etching solution is formed by adding 35% ammonium hydroxide solution to a hot 12.5% TMAH solution at about 70° C. at a rate of 1% by volume, every hour. Such an etch solution and method provides a simple, inexpensive, single step self initiating poly etch that has etch stop ratios of over 200 to 1 over underlying insulator layers and TiN layers.
    Type: Application
    Filed: March 22, 2007
    Publication date: August 2, 2007
    Inventor: Kevin Shea
  • Publication number: 20070173013
    Abstract: In one embodiment, a method includes providing a semiconductor substrate that includes a memory container having a double-sided capacitor. The method also includes vapor phase etching a layer adjacent to the side wall of the memory container with a vapor having a surface tension lowering agent.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 26, 2007
    Inventors: Kevin Torek, Kevin Shea
  • Publication number: 20070163997
    Abstract: The use of an ammonium hydroxide spike to a hot tetra methyl ammonium hydroxide (TMAH) solution to form an insitu poly oxide decapping step in a polysilicon (poly) etch process, results in a single step rapid poly etch process having uniform etch initiation and a high etch selectivity, that may be used in manufacturing a variety of electronic devices such as integrated circuits (ICs) and micro electromechanical (MEM) devices. The etching solution is formed by adding 35% ammonium hydroxide solution to a hot 12.5% TMAH solution at about 70° C. at a rate of 1% by volume, every hour. Such an etch solution and method provides a simple, inexpensive, single step self initiating poly etch that has etch stop ratios of over 200 to 1 over underlying insulator layers and TiN layers.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 19, 2007
    Inventor: Kevin Shea
  • Publication number: 20070131995
    Abstract: Bottom electrodes of memory cell capacitors are recessed to prevent electrical shorts between neighboring memory cells. A partially fabricated memory cell capacitor has a bottom electrode comprising titanium nitride (TiN) and hemispherical grained (HSG) silicon. The container housing the capacitor is filled with photoresist and then planarized. The TiN layer is then selectively recessed with a peroxide mixture and subsequently the HSG silicon layer is recessed using tetramethyl ammoniumhydroxide. Thus, the bottom electrode is recessed below the level of particles which may overlie the memory cell capacitors and cause shorts by contacting the bottom electrode.
    Type: Application
    Filed: February 23, 2007
    Publication date: June 14, 2007
    Applicant: Micron Technology, Inc.
    Inventor: Kevin Shea
  • Publication number: 20070117347
    Abstract: The invention includes methods of forming isolation regions. An opening can be formed to extend into a semiconductor material, and an upper periphery of the opening can be protected with a liner while a lower periphery is unlined. The unlined portion can then be etched to form a widened region of the opening. Subsequently, the opening can be filled with insulative material to form an isolation region. Transistor devices can then be formed on opposing sides of the isolation region, and electrically isolated from one another with the isolation region. The invention also includes semiconductor constructions containing an electrically insulative isolation structure extending into a semiconductor material, with the structure having a bulbous bottom region and a stem region extending upwardly from the bottom region to a surface of the semiconductor material.
    Type: Application
    Filed: January 17, 2007
    Publication date: May 24, 2007
    Inventors: Hongmei Wang, Fred Fishburn, Janos Fucsko, T. Allen, Richard Lane, Robert Hanson, Kevin Shea
  • Publication number: 20070117335
    Abstract: Double-sided container capacitors are formed using sacrificial layers. A sacrificial layer is formed within a recess in a structural layer. A lower electrode is formed within the recess. The sacrificial layer is removed to create a space to allow access to the sides of the structural layer. The structural layer is removed, creating an isolated lower electrode. The lower electrode can be covered with a capacitor dielectric and upper electrode to form a double-sided container capacitor.
    Type: Application
    Filed: January 19, 2007
    Publication date: May 24, 2007
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Gurtej Sandhu, Kevin Shea, Chris Hill, Kevin Torek
  • Patent number: 7214978
    Abstract: In one embodiment, a method includes providing a semiconductor substrate that includes a memory container having a double-sided capacitor. The method also includes vapor phase etching a layer adjacent to the side wall of the memory container with a vapor having a surface tension lowering agent.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: May 8, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Kevin Torek, Kevin Shea
  • Publication number: 20060292787
    Abstract: The invention includes methods of forming isolation regions. An opening can be formed to extend into a semiconductor material, and an upper periphery of the opening can be protected with a liner while a lower periphery is unlined. The unlined portion can then be etched to form a widened region of the opening. Subsequently, the opening can be filled with insulative material to form an isolation region. Transistor devices can then be formed on opposing sides of the isolation region, and electrically isolated from one another with the isolation region. The invention also includes semiconductor constructions containing an electrically insulative isolation structure extending into a semiconductor material, with the structure having a bulbous bottom region and a stem region extending upwardly from the bottom region to a surface of the semiconductor material.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 28, 2006
    Inventors: Hongmei Wang, Fred Fishburn, Janos Fucsko, T. Allen, Richard Lane, Robert Hanson, Kevin Shea
  • Publication number: 20060289389
    Abstract: The use of an ammonium hydroxide spike to a hot tetra methyl ammonium hydroxide (TMAH) solution to form an insitu poly oxide decapping step in a polysilicon (poly) etch process, results in a single step rapid poly etch process having uniform etch initiation and a high etch selectivity, that may be used in manufacturing a variety of electronic devices such as integrated circuits (ICs) and micro electro-mechanical (MEM) devices. The etching solution is formed by adding 35% ammonium hydroxide solution to a hot 12.5% TMAH solution at about 70° C. at a rate of 1% by volume, every hour. Such an etch solution and method provides a simple, inexpensive, single step self initiating poly etch that has etch stop ratios of over 200 to 1 over underlying insulator layers and TiN layers.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 28, 2006
    Inventor: Kevin Shea
  • Publication number: 20060283837
    Abstract: This invention methods of etching an aluminum oxide comprising substrate, and methods of forming capacitors. In one implementation, a method of etching an aluminum oxide comprising substrate includes flowing water and ozone to aluminum oxide on the substrate, with at least one of the water and the ozone being at a temperature of at least 65° C. at the aluminum oxide effective to etch aluminum oxide from the substrate. In one implementation, aspects of the method are utilized in forming a capacitor.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 21, 2006
    Inventor: Kevin Shea
  • Publication number: 20060263729
    Abstract: A surface treatment process includes rinsing a substrate after a dry development process to remove residual resist material prior to patterning a hard mask layer. An amorphous carbon hard mask is dry developed and thereafter, the surface treatment includes an aqueous ammonium hydroxide and hydrogen peroxide composition. While the composition acts as a solvent to the resist, the composition is selective to the amorphous carbon hard mask and the surface under the hard mask.
    Type: Application
    Filed: July 27, 2006
    Publication date: November 23, 2006
    Inventors: Kevin Shea, Kevin Torek
  • Publication number: 20060263730
    Abstract: A surface treatment process includes rinsing a substrate after a dry development process to remove residual resist material prior to patterning a hard mask layer. An amorphous carbon hard mask is dry developed and thereafter, the surface treatment includes an aqueous ammonium hydroxide and hydrogen peroxide composition. While the composition acts as a solvent to the resist, the composition is selective to the amorphous carbon hard mask and the surface under the hard mask.
    Type: Application
    Filed: July 27, 2006
    Publication date: November 23, 2006
    Inventors: Kevin Shea, Kevin Torek