Patents by Inventor Larry Ping-Kwan Wong

Larry Ping-Kwan Wong 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: 6786224
    Abstract: A nozzle assembly includes a connector tube having a first end and a second end. An outer surface of the connector tube is threaded. A first cap having an opening therethrough is threaded onto the first end of the connector tube. A second cap having an opening therethrough is threaded onto the second end of the connector tube. Each of the first and second caps has a top surface and a threaded inner surface. The nozzle assembly further includes a nozzle having a tubular portion defining a channel. The tubular portion is disposed in the opening of the first connector cap so that a position of the nozzle can be axially and rotationally adjusted. A spin, rinse, and dry station including the adjustable nozzle assembly and a method for spin rinsing the bottom side, i.e., the backside, of a semiconductor wafer also are described.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 7, 2004
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Patent number: 6685440
    Abstract: A pressure booster and method for amplifying a water pressure that is supplied by a water facility is provided. The pressure booster is configured to be connected between the water facility and one or more semiconductor substrate cleaning systems. The pressure booster includes a pump having a pump input that connects to the water facility and a pump output that is configured to produce a fluctuating amplified water pressure that is greater than the water pressure that is supplied by the water facility. Further included is a pressure dampener having a dampener input for accepting the fluctuating amplified water pressure from the pump output. The pressure dampener is configured to partially reduce pressure fluctuations in the fluctuating amplified water pressure. The pressure dampener also has a dampener output. A pressure regulator having a regulator input for receiving the dampener output is also included as part of the pressure booster.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: February 3, 2004
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Publication number: 20030002993
    Abstract: A pressure booster and method for amplifying a water pressure that is supplied by a water facility is provided. The pressure booster is configured to be connected between the water facility and one or more semiconductor substrate cleaning systems. The pressure booster includes a pump having a pump input that connects to the water facility and a pump output that is configured to produce a fluctuating amplified water pressure that is greater than the water pressure that is supplied by the water facility. Further included is a pressure dampener having a dampener input for accepting the fluctuating amplified water pressure from the pump output. The pressure dampener is configured to partially reduce pressure fluctuations in the fluctuating amplified water pressure. The pressure dampener also has a dampener output. A pressure regulator having a regulator input for receiving the dampener output is also included as part of the pressure booster.
    Type: Application
    Filed: May 7, 2002
    Publication date: January 2, 2003
    Applicant: LAM RESEARCH CORPORATION
    Inventor: Larry Ping-Kwan Wong
  • Publication number: 20020148916
    Abstract: A nozzle assembly includes a connector tube having a first end and a second end. An outer surface of the connector tube is threaded. A first cap having an opening therethrough is threaded onto the first end of the connector tube. A second cap having an opening therethrough is threaded onto the second end of the connector tube. Each of the first and second caps has a top surface and a threaded inner surface. The nozzle assembly further includes a nozzle having a tubular portion defining a channel. The tubular portion is disposed in the opening of the first connector cap so that a position of the nozzle can be axially and rotationally adjusted. A spin, rinse, and dry station including the adjustable nozzle assembly and a method for spin rinsing the bottom side, i.e., the backside, of a semiconductor wafer also are described.
    Type: Application
    Filed: May 30, 2002
    Publication date: October 17, 2002
    Applicant: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Patent number: 6419170
    Abstract: A nozzle assembly includes a connector tube having a first end and a second end. An outer surface of the connector tube is threaded. A first cap having an opening therethrough is threaded onto the first end of the connector tube. A second cap having an opening therethrough is threaded onto the second end of the connector tube. Each of the first and second caps has a top surface and a threaded inner surface. The nozzle assembly further includes a nozzle having a tubular portion defining a channel. The tubular portion is disposed in the opening of the first connector cap so that a position of the nozzle can be axially and rotationally adjusted. A spin, rinse, and dry station including the adjustable nozzle assembly and a method for spin rinsing the bottom side, i.e., the backside, of a semiconductor wafer also are described.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: July 16, 2002
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Patent number: 6406273
    Abstract: A pressure booster and method for amplifying a water pressure that is supplied by a water facility is provided. The pressure booster is configured to be connected between the water facility and one or more semiconductor substrate cleaning systems. The pressure booster includes a pump having a pump input that connects to the water facility and a pump output that is configured to produce a fluctuating amplified water pressure that is greater than the water pressure that is supplied by the water facility. Further included is a pressure dampener having a dampener input for accepting the fluctuating amplified water pressure from the pump output. The pressure dampener is configured to partially reduce pressure fluctuations in the fluctuating amplified water pressure. The pressure dampener also has a dampener output. A pressure regulator having a regulator input for receiving the dampener output is also included as part of the pressure booster.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: June 18, 2002
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Patent number: 6368416
    Abstract: A method for validating pre-process adjustments to a wafer cleaning system includes the operations of (a) making pre-process adjustments to a wafer cleaning system, (b) loading a substantially transparent wafer into the wafer cleaning system, and (c) observing the substantially transparent wafer as the substantially transparent wafer moves along a wafer transfer path in the wafer cleaning system. In the event undesirable contact between the substantially transparent wafer and components of the wafer cleaning system is observed, the method further includes (d) making adjustments to the wafer cleaning system formulated to avoid undesirable contact between semiconductor wafers to be processed and components of the wafer cleaning system, and (e) repeating operations (b) through (d) until the substantially transparent wafer moves along the wafer transfer path without undesirable contact with components of the wafer cleaning system.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: April 9, 2002
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong
  • Publication number: 20010043867
    Abstract: A pressure booster and method for amplifying a water pressure that is supplied by a water facility is provided. The pressure booster is configured to be connected between the water facility and one or more semiconductor substrate cleaning systems. The pressure booster includes a pump having a pump input that connects to the water facility and a pump output that is configured to produce a fluctuating amplified water pressure that is greater than the water pressure that is supplied by the water facility. Further included is a pressure dampener having a dampener input for accepting the fluctuating amplified water pressure from the pump output. The pressure dampener is configured to partially reduce pressure fluctuations in the fluctuating amplified water pressure. The pressure dampener also has a dampener output. A pressure regulator having a regulator input for receiving the dampener output is also included as part of the pressure booster.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 22, 2001
    Inventor: Larry Ping-Kwan Wong
  • Patent number: 6267142
    Abstract: A solution delivery system for use with a wafer preparation system is provided. The solution deliver system includes a de-ionized water (DIW) dispense drawer having an input for receiving an initial flow of DIW from a facility water supply. The DIW dispense drawer further includes a first pressure regulator for stabilizing the initial flow of DIW and producing a substantially steady flow of DIW as a DIW output of the DIW dispense drawer. A chemical drawer is also provided as part of the solution delivery system. The chemical drawer is configured to receive the substantially steady flow of DIW from the DIW dispense drawer. The chemical drawer is further configured to receive an initial flow of chemicals from a chemical source. The chemical drawer also includes a second pressure regulator for stabilizing the initial flow of chemicals from the chemical source and thus producing a substantially steady flow of chemicals.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: July 31, 2001
    Assignee: Lam Research Corporation
    Inventors: Larry Ping-Kwan Wong, John Martin deLarios
  • Patent number: 6247903
    Abstract: A pressure booster and method for amplifying a water pressure that is supplied by water facility is provided. The pressure booster is configured to be connected between he water facility and one or more semiconductor substrate cleaning systems. The pressure booster includes a pump having a pump input that connects to the water facility and a pump output that is configured to produce a fluctuating amplified water pressure that is greater than the water pressure that is supplied by the water facility. Further included is a pressure dampener having a dampener input for accepting the fluctuating amplified water pressure from the pump output. The pressure dampener is configured to partially reduce pressure fluctuations in the fluctuating amplified water pressure. The pressure dampener also has a dampener output. A pressure regulator having a regulator input for receiving the dampener output is also included as part of the pressure booster.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: June 19, 2001
    Assignee: Lam Research Corporation
    Inventor: Larry Ping-Kwan Wong