Patents Assigned to ASM America, Inc.
  • Publication number: 20120234230
    Abstract: A system and methods are provided for low temperature, rapid baking to remove impurities from a semiconductor surface prior to in-situ deposition. The system is configured with an upper bank of heat elements perpendicular to the gas flow path, such that when the substrate is heated, the temperature across the substrate can be maintained relatively uniform via zoned heating. Advantageously, a short, low temperature process is suitable for advanced, high density circuits with shallow junctions. Furthermore, throughput is greatly improved by the low temperature bake.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 20, 2012
    Applicant: ASM America, Inc.
    Inventors: Michael W. Halpin, Paul T. Jacobson
  • Patent number: 8268409
    Abstract: Methods of forming a metal carbide film are provided. In some embodiments, methods for forming a metal carbide film in an atomic layer deposition (ALD) type process comprise alternately and sequentially contacting a substrate in a reaction space with vapor phase pulses of a metal compound and one or more plasma-excited species of a carbon-containing compound. In other embodiments, methods of forming a metal carbide film in a chemical vapor deposition (CVD) type process comprise simultaneously contacting a substrate in a reaction space with a metal compound and one or more plasma-excited species of a carbon-containing compound. The substrate is further exposed to a reducing agent. The reducing agent removes impurities, including halogen atoms and/or oxygen atoms.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: September 18, 2012
    Assignee: ASM America, Inc.
    Inventors: Kai-Erik Elers, Glen Wilk, Steven Marcus
  • Patent number: 8262287
    Abstract: A thermocouple for use in a semiconductor processing reaction is described. The thermocouple includes a sheath having a measuring tip and an opening at the opposing end. A support member that receives a portion of a first wire and a second wire is received within the sheath. The first and second wires form a junction that contacts the inner surface of the sheath at the measuring tip. A spacing member is secured at the opening of the sheath and receives the support member. The spacing member allows the support member, first wire, and second wire to freely thermally expand relative to each other without introducing compression or tension stresses therein.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: September 11, 2012
    Assignee: ASM America, Inc.
    Inventors: Buz Darabnia, Andy Yednak, Mike Halpin, Loren Jacobs, Ravinder Aggarwal
  • 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
  • Publication number: 20120100308
    Abstract: Methods and equipment for forming ternary metal alloys are provided. In some embodiments, TaCN thin films are deposited by exposing a substrate to alternating pulses of an organometallic tantalum precursor comprising nitrogen and carbon and hydrogen plasma. The stoichiometry of the film is tuned from carbon rich to nitrogen rich by adjusting the plasma parameters, particularly the plasma power and duration. In this way, films with varied characteristics can be formed from the same precursor. For example, both n-type and p-type materials can be deposited in the same module using the same precursor.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 26, 2012
    Applicant: ASM America, Inc.
    Inventors: Robert B. Milligan, Dong Li, Steven Marcus
  • Patent number: 8152922
    Abstract: A system and method for mixing a plurality of gases for an atomic layer deposition (ALD) reactor. The mixer is configured to mix the plurality of gases while minimizing the potential for re-circulation within the mixer. The mixer is further configured to maintain the flow velocity of the plurality of gases as the gases pass through the mixer.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: April 10, 2012
    Assignee: ASM America, Inc.
    Inventors: Ryan M. Schmidt, Mohith Verghese
  • Publication number: 20120079984
    Abstract: A system and method for mixing a plurality of gases for an atomic layer deposition (ALD) reactor. The mixer is configured to mix the plurality of gases while minimizing the potential for re-circulation within the mixer. The mixer is further configured to maintain the flow velocity of the plurality of gases as the gases pass through the mixer.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 5, 2012
    Applicant: ASM America, Inc.
    Inventors: Ryan M. Schmidt, Mohith Verghese
  • 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: 20120031340
    Abstract: A reaction apparatus for a semiconductor fabrication apparatus, wherein the reaction apparatus includes at least two adjustable outlet ports for withdrawing reactant gases from the reaction chamber. Adjustment of the flow rate through each of the outlet ports selectively modifies the flow pattern of the reactant gases within the reaction chamber to maintain a desired flow pattern therewithin, such as a substantially uniform flow over the surface of a substrate being processed, and/or minimization of turbulence within the reactor.
    Type: Application
    Filed: October 19, 2011
    Publication date: February 9, 2012
    Applicant: ASM AMERICA, INC.
    Inventors: Ravinder Aggarwal, Jeroen Stoutjesdijk
  • Patent number: 8100583
    Abstract: A thermocouple having at least one inner alignment feature or at least one outer alignment feature, or a combination thereof for positively positioning and aligning at least one thermocouple junction within a bore formed in a susceptor ring of a semiconductor substrate processing reactor. The outer alignment feature is configured to positively align the junction(s) longitudinally within the bore. The inner alignment feature configured to positively position the junction(s) rotationally within the sheath of the thermocouple relative to the bore.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: January 24, 2012
    Assignee: ASM America, Inc.
    Inventors: Rand Conner, Ravinder K. Aggarwal
  • Patent number: 8088223
    Abstract: A substrate processing system has computer controlled injectors. The computer is configured to adjust a plurality of injectors, such as during deposition of a graded layer, between depositions of two different layers, or between deposition and chamber clean steps.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: January 3, 2012
    Assignee: ASM America, Inc.
    Inventors: Michael A. Todd, Keith D. Weeks, Paul T. Jacobson
  • Patent number: 8088225
    Abstract: A substrate support system comprises a substrate holder having a plurality of passages extending between top and bottom surfaces thereof. The substrate holder supports a peripheral portion of the substrate backside so that a thin gap is formed between the substrate and the substrate holder. A hollow support member provides support to an underside of, and is configured to convey gas upward into one or more of the passages of, the substrate holder. The upwardly conveyed gas flows into the gap between the substrate and the substrate holder. Depending upon the embodiment, the gas then flows either outward and upward around the substrate edge (to inhibit backside deposition of reactant gases above the substrate) or downward through passages of the substrate holder, if any, that do not lead back into the hollow support member (to inhibit autodoping by sweeping out-diffused dopant atoms away from the substrate backside).
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: January 3, 2012
    Assignee: ASM America, Inc.
    Inventors: Matt G. Goodman, Jereon Stoutyesdijk, Ravinder Aggarwal, Mike Halpin, Tony Keeton, Mark Hawkins, Lee Haen, Armand Ferro, Paul Brabant, Robert Vyne, Gregory M. Bartlett, Joseph P. Italiano, Bob Haro
  • Patent number: 8076237
    Abstract: The present invention discloses methods for depositing a material, particularly a conductive material, in cavities of a substrate and forming bonding contacts or pads thereon. An intracavity structure may be utilized in conjunction with embodiments of the present invention to provide efficient filling of diverse cavities within the substrate. Also provided are embodiments for interconnection structures using filled cavities, along with electrically conductive or reactive structures which may include capacitors fabricated within a substrate.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: December 13, 2011
    Assignee: ASM America, Inc.
    Inventor: Cyprian Emeka Uzoh
  • Patent number: 8071452
    Abstract: There is provided an improved method for depositing thin films using precursors to deposit binary oxides by atomic layer deposition (ALD) techniques. Also disclosed is an ALD method for depositing a high-k dielectric such as hafnium lanthanum oxide (HfLaO) on a substrate. Embodiments of the present invention utilize a combination of ALD precursor elements and cycles to deposit a film with desired physical and electrical characteristics. Electronic components and systems that integrate devices fabricated with methods consistent with the present invention are also disclosed.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: December 6, 2011
    Assignee: ASM America, Inc.
    Inventor: Petri I. Raisanen
  • Patent number: 8067061
    Abstract: A reaction apparatus for a semiconductor fabrication apparatus, wherein the reaction apparatus includes at least two adjustable outlet ports for withdrawing reactant gases from the reaction chamber. Adjustment of the flow rate through each of the outlet ports selectively modifies the flow pattern of the reactant gases within the reaction chamber to maintain a desired flow pattern therewithin, such as a substantially uniform flow over the surface of a substrate being processed, and/or minimization of turbulence within the reactor.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: November 29, 2011
    Assignee: ASM America, Inc.
    Inventors: Ravinder Aggarwal, Jeroen Stoutjesdijk
  • Patent number: 8067297
    Abstract: Chemical vapor deposition processes utilize higher order silanes and germanium precursors as chemical precursors. The processes have high deposition rates yet produce more uniform films, both compositionally and in thickness, than films prepared using conventional chemical precursors. In preferred embodiments, trisilane is employed to deposit SiGe-containing films that are useful in the semiconductor industry in various applications such as transistor gate electrodes.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 29, 2011
    Assignee: ASM America, Inc.
    Inventor: Michael A. Todd
  • Patent number: 8047706
    Abstract: Methods and systems for calibrating a temperature control system in a vapor deposition chamber. A temperature sensor senses temperature within a semiconductor processing chamber and generates an output signal. A temperature control system controls a chamber temperature by controlling a heating apparatus based on the output signal. A method includes instructing the control system to target a setpoint temperature, and depositing a layer of material onto a surface in the chamber by a vapor deposition process. A variation of a property of the layer is measured while depositing the layer, the property known to vary cyclically as a thickness of the layer increases. The measured property is allowed to vary cyclically for one or more cycles. If there is a difference between a time period of one or more of the cycles and an expected time period associated with the setpoint temperature, the temperature control system is adjusted based on the difference.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: November 1, 2011
    Assignee: ASM America, Inc.
    Inventors: Matthew G. Goodman, Mark Hawkins, Ravinder Aggarwal, Michael Givens, Eric Hill, Gregory Bartlett
  • 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