Patents by Inventor Eric Shero

Eric Shero 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: 20130160709
    Abstract: A device for performing ALD includes a housing having a vacuum chamber that surrounds a horizontal flow reactor. The device further includes a gas distribution system for delivering gases to the reactor. The gas distribution system includes at least one of a high temperature valve and a high temperature filter disposed inside the vacuum chamber. The high temperature valve (and/or filter) controls (and/or filters) a supply of a precursor/reactant gas, inert gas, or precursor/reactant and inert gas mixture before it enters the horizontal flow reactor.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Applicant: ASM AMERICA, INC.
    Inventors: Carl L. White, Eric Shero
  • Patent number: 8309173
    Abstract: An apparatus and method improves heating of a solid precursor inside a sublimation vessel. In one embodiment, inert, thermally conductive elements are interspersed among units of solid precursor. For example the thermally conductive elements can comprise a powder, beads, rods, fibers, etc. In one arrangement, microwave energy can directly heat the thermally conductive elements.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: November 13, 2012
    Assignee: ASM International N.V.
    Inventors: Marko Tuominen, Eric Shero, Mohith Verghese
  • Publication number: 20120266821
    Abstract: An atomic deposition (ALD) thin film deposition apparatus includes a deposition chamber configured to deposit a thin film on a wafer mounted within a space defined therein. The deposition chamber comprises a gas inlet that is in communication with the space. A gas system is configured to deliver gas to the gas inlet of the deposition chamber. At least a portion of the gas system is positioned above the deposition chamber. The gas system includes a mixer configured to mix a plurality of gas streams. A transfer member is in fluid communication with the mixer and the gas inlet. The transfer member comprising a pair of horizontally divergent walls configured to spread the gas in a horizontal direction before entering the gas inlet.
    Type: Application
    Filed: June 21, 2012
    Publication date: October 25, 2012
    Applicant: ASM America, Inc.
    Inventors: Mohith Verghese, Kyle Fondurulia, Carl White, Eric Shero, Darko Babic, Herbert Terhorst, Marko Peussa, Min Yan
  • Patent number: 8293658
    Abstract: Methods and structures relating to the formation of mixed SAMs for preventing undesirable growth or nucleation on exposed surfaces inside a reactor are described. A mixed SAM can be formed on surfaces for which nucleation is not desired by introducing a first SAM precursor having molecules of a first length and a second SAM precursor having molecules of a second length shorter than the first. Examples of exposed surfaces for which a mixed SAM can be provided over include reactor surfaces and select surfaces of integrated circuit structures, such as insulator and dielectric layers.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 23, 2012
    Assignee: ASM America, Inc.
    Inventors: Eric Shero, Mohith Verghese, Anthony Muscat, Shawn Miller
  • Patent number: 8216380
    Abstract: A semiconductor processing apparatus includes a reaction chamber, a movable susceptor, a movement element, and a control system. The reaction chamber includes a baseplate. The baseplate includes an opening. The movable susceptor is configured to hold a workpiece. The movable element is configured to move a workpiece held on the susceptor towards the opening of the baseplate. The control system is configured to space the susceptor from the baseplate by an unsealed gap during processing of a workpiece in the reaction chamber. Purge gases may flow through the gap into the reaction chamber. Methods of maintaining the gap during processing include calibrating the height of pads and capacitance measurements when the susceptor is spaced from the baseplate.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: July 10, 2012
    Assignee: ASM America, Inc.
    Inventors: Carl L. White, Eric Shero, Joe Reed
  • Patent number: 8211230
    Abstract: An atomic deposition (ALD) thin film deposition apparatus includes a deposition chamber configured to deposit a thin film on a wafer mounted within a space defined therein. The deposition chamber comprises a gas inlet that is in communication with the space. A gas system is configured to deliver gas to the gas inlet of the deposition chamber. At least a portion of the gas system is positioned above the deposition chamber. The gas system includes a mixer configured to mix a plurality of gas streams. A transfer member is in fluid communication with the mixer and the gas inlet. The transfer member comprising a pair of horizontally divergent walls configured to spread the gas in a horizontal direction before entering the gas inlet.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 3, 2012
    Assignee: ASM America, Inc.
    Inventors: Mohith Verghese, Kyle Fondurulia, Carl White, Eric Shero, Darko Babic, Herbert Terhorst, Marko Peussa, Min Yan
  • Publication number: 20120156108
    Abstract: A precursor source vessel comprises a vessel body, a passage within the vessel body, and a valve attached to a surface of the body. An internal chamber is adapted to contain a chemical reactant, and the passage extends from outside the body to the chamber. The valve regulates flow through the passage. The vessel has inlet and outlet valves, and optionally a vent valve for venting internal gas. An external gas panel can include at least one valve fluidly interposed between the outlet valve and a substrate reaction chamber. Gas panel valves can each be positioned along a plane that is generally parallel to, and no more than about 10.0 cm from, a flat surface of the vessel. Filters in a vessel lid or wall filter gas flow through the vessel's valves. A quick-connection assembly allows fast and easy connection of the vessel to a gas panel.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Applicant: ASM AMERICA, INC.
    Inventors: KYLE FONDURULIA, Eric Shero, Mohith E. Verghese, Carl L. White
  • Patent number: 8137462
    Abstract: A precursor source vessel comprises a vessel body, a passage within the vessel body, and a valve attached to a surface of the body. An internal chamber is adapted to contain a chemical reactant, and the passage extends from outside the body to the chamber. The valve regulates flow through the passage. The vessel has inlet and outlet valves, and optionally a vent valve for venting internal gas. An external gas panel can include at least one valve fluidly interposed between the outlet valve and a substrate reaction chamber. Gas panel valves can each be positioned along a plane that is generally parallel to, and no more than about 10.0 cm from, a flat surface of the vessel. Filters in a vessel lid or wall filter gas flow through the vessel's valves. A quick-connection assembly allows fast and easy connection of the vessel to a gas panel.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: March 20, 2012
    Assignee: ASM America, Inc.
    Inventors: Kyle Fondurulia, Eric Shero, Mohith E Verghese, Carl L White
  • Publication number: 20110256735
    Abstract: Methods for forming metal silicate films are provided. The methods comprise contacting a substrate with alternating and sequential vapor phase pulses of a silicon source chemical, metal source chemical, and an oxidizing agent, wherein the metal source chemical is the next reactant provided after the silicon source chemical. Methods according to some embodiments can be used to form silicon-rich hafnium silicate and zirconium silicate films with substantially uniform film coverages on substrate surface.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 20, 2011
    Applicant: ASM AMERICA, INC.
    Inventors: Chang-Gong Wang, Eric Shero, Glen Wilk
  • Publication number: 20110198736
    Abstract: Methods and structures relating to the formation of mixed SAMs for preventing undesirable growth or nucleation on exposed surfaces inside a reactor are described. A mixed SAM can be formed on surfaces for which nucleation is not desired by introducing a first SAM precursor having molecules of a first length and a second SAM precursor having molecules of a second length shorter than the first. Examples of exposed surfaces for which a mixed SAM can be provided over include reactor surfaces and select surfaces of integrated circuit structures, such as insulator and dielectric layers.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 18, 2011
    Applicant: ASM America, Inc.
    Inventors: ERIC SHERO, Mohith Verghese, Anthony Muscat, Shawn Miller
  • Patent number: 7972977
    Abstract: Methods for forming metal silicate films are provided. The methods comprise contacting a substrate with alternating and sequential vapor phase pulses of a silicon source chemical, metal source chemical, and an oxidizing agent, wherein the metal source chemical is the next reactant provided after the silicon source chemical. Methods according to some embodiments can be used to form silicon-rich hafnium silicate and zirconium silicate films with substantially uniform film coverages on substrate surface.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: July 5, 2011
    Assignee: ASM America, Inc.
    Inventors: Chang-Gong Wang, Eric Shero, Glen Wilk
  • Publication number: 20110076402
    Abstract: An apparatus and method improves heating of a solid precursor inside a sublimation vessel. In one embodiment, inert, thermally conductive elements are interspersed among units of solid precursor. For example the thermally conductive elements can comprise a powder, beads, rods, fibers, etc. In one arrangement, microwave energy can directly heat the thermally conductive elements.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicant: ASM INTERNATIONAL N.V.
    Inventors: Marko Tuominen, Eric Shero, Mohith Verghese
  • Publication number: 20110070380
    Abstract: Systems and methods are delineated which, among other things, are for depositing a film on a substrate that is within a reaction chamber. In an exemplary method, the method may comprise applying an atomic layer deposition cycle to the substrate, wherein the cycle may comprise exposing the substrate to a precursor gas for a precursor pulse interval and then removing the precursor gas thereafter, and exposing the substrate to an oxidizer comprising an oxidant gas and a nitrogen-containing species gas for an oxidation pulse interval and then removing the oxidizer thereafter. Aspects of the present invention utilize molecular and excited nitrogen-oxygen radical/ionic species in possible further combination with oxidizers such as ozone. Embodiments of the present invention also include electronic components and systems that include devices fabricated with methods consistent with the present invention.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 24, 2011
    Inventors: Eric Shero, Petri I. Raisanen, Sung Hoon Jung, Chang-Gong Wang
  • Publication number: 20100322604
    Abstract: A precursor source vessel for providing vaporized precursor to a reaction chamber is provided. The precursor source vessel includes a lid having a first port, a second port, and a third port. The precursor source vessel also includes a base removably attached to the lid. The base includes a recessed region formed therein. One of the first, second, and third ports is a burp port configured to relieve the head pressure within the source vessel after the source vessel is installed but prior to use of the source vessel in semiconductor processing.
    Type: Application
    Filed: April 19, 2010
    Publication date: December 23, 2010
    Inventors: Kyle Fondurulia, Eric Shero, Mohith E. Verghese, Carl L. White
  • Patent number: 7851019
    Abstract: An apparatus and method improves heating of a solid precursor inside a sublimation vessel. In one embodiment, inert, thermally conductive elements are interspersed among units of solid precursor. For example the thermally conductive elements can comprise a powder, beads, rods, fibers, etc. In one arrangement, microwave energy can directly heat the thermally conductive elements.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 14, 2010
    Assignee: ASM International N.V.
    Inventors: Marko Tuominen, Eric Shero, Mohith Verghese
  • Publication number: 20100307415
    Abstract: A reactor having a housing that encloses a gas delivery system operatively connected to a reaction chamber and an exhaust assembly. The gas delivery system includes a plurality of gas lines for providing at least one process gas to the reaction chamber. The gas delivery system further includes a mixer for receiving the at least one process gas. The mixer is operatively connected to a diffuser that is configured to diffuse process gases. The diffuser is attached directly to an upper surface of the reaction chamber, thereby forming a diffuser volume therebetween. The diffuser includes at least one distribution surface that is configured to provide a flow restriction to the process gases as they pass through the diffuser volume before being introduced into the reaction chamber. The reaction chamber defines a reaction space in which a semiconductor substrate is disposed for processing.
    Type: Application
    Filed: April 5, 2010
    Publication date: December 9, 2010
    Inventors: Eric Shero, Mohith E. Verghese, Carl L. White, Herbert Terhorst, Dan Maurice
  • Publication number: 20100275952
    Abstract: Compositions, methods, and systems permit selectively etching metal oxide from reactor metal parts (e.g., titanium and/or titanium alloys). The etching composition comprises an alkali metal hydroxide and gallic acid. The method is useful for cleaning reaction chambers used in the deposition of metal oxide films such as aluminum oxide.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Applicant: ASM AMERICA, INC.
    Inventors: Srini Raghavan, Eric Shero, Mohith Verghese
  • Publication number: 20100173432
    Abstract: A semiconductor processing apparatus includes a reaction chamber, a movable susceptor, a movement element, and a control system. The reaction chamber includes a baseplate. The baseplate includes an opening. The movable susceptor is configured to hold a workpiece. The movable element is configured to move a workpiece held on the susceptor towards the opening of the baseplate. The control system is configured to space the susceptor from the baseplate by an unsealed gap during processing of a workpiece in the reaction chamber. Purge gases may flow through the gap into the reaction chamber. Methods of maintaining the gap during processing include calibrating the height of pads and capacitance measurements when the susceptor is spaced from the baseplate.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 8, 2010
    Applicant: ASM America, Inc.
    Inventors: Carl L. White, Eric Shero, Joe Reed
  • Patent number: 7601225
    Abstract: An apparatus and method improves heating of a solid precursor inside a sublimation vessel. In one embodiment, inert, thermally conductive elements are interspersed among units of solid precursor. For example the thermally conductive elements can comprise a powder, beads, rods, fibers, etc. In one arrangement, microwave energy can directly heat the thermally conductive elements.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: October 13, 2009
    Assignee: ASM International N.V.
    Inventors: Marko Tuominen, Eric Shero, Mohith Verghese
  • Publication number: 20090214767
    Abstract: Methods for doping a substrate surface or the interface between two thin films by atomic layer deposition process (ALD) are provided. By blocking some of the available binding sites for a dopant precursor with a blocking reactant, the concentration and uniformity of dopant deposited can be controlled. The blocking reactant may be introduced prior to introduction of the dopant precursor in the ALD process, or the blocking reactant and the dopant precursor can be introduced simultaneously.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: ASM America, Inc.
    Inventors: Chang-gong Wang, Eric Shero