Patents by Inventor Lee Luo

Lee Luo 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: 8336488
    Abstract: A plasma chamber is constructed to have a chamber body defining therein a plurality of process stations. A plurality of rotating substrate holders are each situated in one of the process stations and a plurality of in-situ plasma generation regions are each provided above one of the substrate holders. A plurality of quasi-remote plasma generation regions are each provided above a corresponding in-situ plasma generation region and being in gaseous communication with the corresponding in-situ plasma generation region. An RF energy source is coupled to each of the quasi-remote plasma generation regions.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 25, 2012
    Assignee: Advanced Micro-Fabrication Equipment, Inc. Asia
    Inventors: Aihua Chen, Yijun Liu, Jinyuan Chen, Lee Luo, Tuqiang Ni, Gerald Yin, Henry Ho
  • Patent number: 7745329
    Abstract: In one embodiment, a method for forming a tungsten barrier material on a substrate is provided which includes depositing a tungsten layer on a substrate during a vapor deposition process and exposing the substrate sequentially to a tungsten precursor and a nitrogen precursor to form a tungsten nitride layer on the tungsten layer. Some examples provide that the tungsten layer may be deposited by sequentially exposing the substrate to the tungsten precursor and a reducing gas (e.g., diborane or silane) during an atomic layer deposition process. The tungsten layer may have a thickness of about 50 ? or less and tungsten nitride layer may have an electrical resistivity of about 380 ??-cm or less. Other examples provide that a tungsten bulk layer may be deposited on the tungsten nitride layer by a chemical vapor deposition process.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 29, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Patent number: 7608300
    Abstract: A variety of techniques may be employed alone or in combination to reduce the incidence of defects arising in dielectric stack structures formed by chemical vapor deposition (CVD). Incidence of a first defect type attributable to reaction between an unreacted species of a prior CVD step and reactants of a subsequent CVD step, is reduced by exposing a freshly-deposited dielectric layer to a plasma before any additional layers are deposited. Incidence of a second defect type attributable to the presence of incompletely vaporized CVD liquid precursor material, is reduced by exposing the freshly-deposited dielectric layer to a plasma, and/or by continuing the flow of carrier gas through an injection valve for a period beyond the conclusion of the CVD step.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: October 27, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Lee Luo
  • Patent number: 7584655
    Abstract: A formation tester tool includes a formation tester tool body having a surface, a formation probe assembly located within the formation tester tool body, the formation probe assembly including a piston reciprocal between a retracted position and an extended position beyond the surface of the formation tester tool body, the piston being slidingly retained within a chamber, and a seal pad located at an end of the piston, wherein the seal pad includes a first inner sealing element and a second outer sealing element.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: September 8, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Anthony H. van Zuilekom, Chi-Huang Michael Chang, Sue-Lee Luo Chang, legal representative, Arian Abbas, Bruce W. Mackay
  • Publication number: 20090139453
    Abstract: A plasma chamber is constructed to have a chamber body defining therein a plurality of process stations. A plurality of rotating substrate holders are each situated in one of the process stations and a plurality of in-situ plasma generation regions are each provided above one of the substrate holders. A plurality of quasi-remote plasma generation regions are each provided above a corresponding in-situ plasma generation region and being in gaseous communication with the corresponding in-situ plasma generation region. An RF energy source is coupled to each of the quasi-remote plasma generation regions.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 4, 2009
    Inventors: AIHUA CHEN, Yijun Liu, Jinyuan Chen, Lee Luo, Tuqiang Ni, Gerald Yin, Henry Ho
  • Publication number: 20080305629
    Abstract: In one embodiment, a method for forming a tungsten barrier material on a substrate is provided which includes depositing a tungsten layer on a substrate during a vapor deposition process and exposing the substrate sequentially to a tungsten precursor and a nitrogen precursor to form a tungsten nitride layer on the tungsten layer. Some examples provide that the tungsten layer may be deposited by sequentially exposing the substrate to the tungsten precursor and a reducing gas (e.g., diborane or silane) during an atomic layer deposition process. The tungsten layer may have a thickness of about 50 ? or less and tungsten nitride layer may have an electrical resistivity of about 380 ??-cm or less. Other examples provide that a tungsten bulk layer may be deposited on the tungsten nitride layer by a chemical vapor deposition process.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 11, 2008
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Publication number: 20080295588
    Abstract: A formation tester tool includes a formation tester tool body having a surface, a formation probe assembly located within the formation tester tool body, the formation probe assembly including a piston reciprocal between a retracted position and an extended position beyond the surface of the formation tester tool body, the piston being slidingly retained within a chamber, and a seal pad located at an end of the piston, wherein the seal pad includes a first inner sealing element and a second outer sealing element.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventors: Anthony H. van Zuilekom, Chi-Huang Michael Chang, Sue-Lee Luo Chang, Arian Abbas, Bruce W. Mackay
  • Publication number: 20080257864
    Abstract: A variety of techniques may be employed alone or in combination to reduce the incidence of defects arising in dielectric stack structures formed by chemical vapor deposition (CVD). Incidence of a first defect type attributable to reaction between an unreacted species of a prior CVD step and reactants of a subsequent CVD step, is reduced by exposing a freshly-deposited dielectric layer to a plasma before any additional layers are deposited. Incidence of a second defect type attributable to the presence of incompletely vaporized CVD liquid precursor material, is reduced by exposing the freshly-deposited dielectric layer to a plasma, and/or by continuing the flow of carrier gas through an injection valve for a period beyond the conclusion of the CVD step.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 23, 2008
    Applicant: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Lee Luo
  • Patent number: 7429516
    Abstract: In one embodiment, a method for forming a tungsten barrier material on a substrate is provided which includes depositing a tungsten layer on a substrate during a vapor deposition process and exposing the substrate sequentially to a tungsten precursor and a nitrogen precursor to form a tungsten nitride layer on the tungsten layer. Some examples provide that the tungsten layer may be deposited by sequentially exposing the substrate to the tungsten precursor and a reducing gas (e.g., diborane or silane) during an atomic layer deposition process. The tungsten layer may have a thickness of about 50 ? or less and tungsten nitride layer may have an electrical resistivity of about 380 ??-cm or less. Other examples provide that a tungsten bulk layer may be deposited on the tungsten nitride layer by a chemical vapor deposition process.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: September 30, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Patent number: 7335266
    Abstract: Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1×1020 atoms/cm3.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: February 26, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Li Fu, Sheeba J. Panayil, Shulin Wang, Christopher G. Quentin, Lee Luo, Aihua Chen, Xianzhi Tao
  • Publication number: 20070020924
    Abstract: In one embodiment, a method for forming a tungsten barrier material on a substrate is provided which includes depositing a tungsten layer on a substrate during a vapor deposition process and exposing the substrate sequentially to a tungsten precursor and a nitrogen precursor to form a tungsten nitride layer on the tungsten layer. Some examples provide that the tungsten layer may be deposited by sequentially exposing the substrate to the tungsten precursor and a reducing gas (e.g., diborane or silane) during an atomic layer deposition process. The tungsten layer may have a thickness of about 50 ? or less and tungsten nitride layer may have an electrical resistivity of about 380 ??-cm or less. Other examples provide that a tungsten bulk layer may be deposited on the tungsten nitride layer by a chemical vapor deposition process.
    Type: Application
    Filed: September 15, 2006
    Publication date: January 25, 2007
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Patent number: 7115499
    Abstract: A method for depositing a tungsten nitride layer is provided. The method includes a cyclical process of alternately adsorbing a tungsten-containing compound and a nitrogen-containing compound on a substrate. The barrier layer has a reduced resistivity, lower concentration of fluorine, and can be deposited at any desired thickness, such as less than 100 angstroms, to minimize the amount of barrier layer material.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: October 3, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Publication number: 20060024926
    Abstract: Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1×1020 atoms/cm3.
    Type: Application
    Filed: September 16, 2005
    Publication date: February 2, 2006
    Inventors: Li Fu, Sheeba Panayil, Shulin Wang, Christopher Quentin, Lee Luo, Aihua Chen, Zianzhi Tao
  • Patent number: 6982214
    Abstract: Method of forming a lightly phosphorous doped silicon film. A substrate is provided. A process gas comprising a phosphorous source gas and a disilane gas is used to form a lightly phosphorous doped silicon film on the substrate. The diluted phosphorous source gas has a phosphorous concentration of 1%. The phosphorous source gas and the disilane gas have a flow ratio less than 1:100. The lightly phosphorous doped silicon film has a phosphorous doping concentration less than 1×1020 atoms/cm3.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: January 3, 2006
    Assignee: Applied Materials, Inc.
    Inventors: Li Fu, Sheeba J. Panayil, Shulin Wang, Christopher G. Quentin, Lee Luo, Aihua Chen, Xianzhi Tao
  • Patent number: 6949203
    Abstract: An integrated in situ etch process performed in a multichamber substrate processing system having first and second etching chambers. In one embodiment the first chamber includes an interior surface that has been roughened to at least 100 Ra and the second chamber includes an interior surface that has a roughness of less than about 32 Ra. The process includes transferring a substrate having formed thereon in a downward direction a patterned photoresist mask, a dielectric layer, a barrier layer and a feature in the substrate to be contacted into the first chamber where the dielectric layer is etched in a process that encourages polymer formation over the roughened interior surface of the chamber. The substrate is then transferred from the first chamber to the second chamber under vacuum conditions and, in the second chamber, is exposed to a reactive plasma such as oxygen to strip away the photoresist mask deposited over the substrate.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: September 27, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Chang-Lin Hsieh, Diana Xiaobing Ma, Brian Sy Yuan Shieh, Gerald Zheyao Yin, Jennifer Sun, Senh Thach, Lee Luo, Claes H. Bjorkman
  • Publication number: 20050176240
    Abstract: A method for depositing a tungsten nitride layer is provided. The method includes a cyclical process of alternately adsorbing a tungsten-containing compound and a nitrogen-containing compound on a substrate. The barrier layer has a reduced resistivity, lower concentration of fluorine, and can be deposited at any desired thickness, such as less than 100 angstroms, to minimize the amount of barrier layer material.
    Type: Application
    Filed: December 1, 2004
    Publication date: August 11, 2005
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Patent number: 6884464
    Abstract: A silicon comprising film and its method of fabrication is described. The silicon comprising film is grown on a substrate. A hexachlorodisilane (HCD) source gas is one of the reactant species used to form the silicon comprising film. The silicon comprising film is formed under a pressure between 10 Torr and 350 Torr.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: April 26, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Lee Luo, R. Suryanarayanan Iyer, Janardhanan Anand Subramony, Errol Antonio C. Sanchez, Xiaoliang Jin, Aihua Chen, Chang-Lian Yan, Nobuo Tokai, Yuji Maeda, Randhir P. Singh Thakur
  • Publication number: 20050045099
    Abstract: A variety of techniques may be employed alone or in combination to reduce the incidence of defects arising in dielectric stack structures formed by chemical vapor deposition (CVD). Incidence of a first defect type attributable to reaction between an unreacted species of a prior CVD step and reactants of a subsequent CVD step, is reduced by exposing a freshly-deposited dielectric layer to a plasma before any additional layers are deposited. Incidence of a second defect type attributable to the presence of incompletely vaporized CVD liquid precursor material, is reduced by exposing the freshly-deposited dielectric layer to a plasma, and/or by continuing the flow of carrier gas through an injection valve for a period beyond the conclusion of the CVD step.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 3, 2005
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Christopher Bencher, Lee Luo
  • Patent number: 6833161
    Abstract: A method for depositing a tungsten nitride layer is provided. The method includes a cyclical process of alternately adsorbing a tungsten-containing compound and a nitrogen-containing compound on a substrate. The barrier layer has a reduced resistivity, lower concentration of fluorine, and can be deposited at any desired thickness, such as less than 100 angstroms, to minimize the amount of barrier layer material.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: December 21, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Shulin Wang, Ulrich Kroemer, Lee Luo, Aihua Chen, Ming Li
  • Publication number: 20040206621
    Abstract: A first system is provided that is configured to pattern a substrate that includes (1) a lithography subsystem configured to form a patterned masking layer on the substrate; and (2) an etch subsystem configured to receive the substrate after the patterned masking layer has been formed thereon and to etch the substrate to form one or more etched features on the substrate, the etch subsystem having an integrated inspection system configured to inspect the substrate; and (3) a controller coupled to the lithography subsystem and the etch subsystem. The controller includes computer program code configured to communicate with each subsystem and to perform the steps of receiving information about the substrate from the integrated inspection system of the etch subsystem; and adjusting a stepper focus of the lithography subsystem during formation of a subsequent patterned masking layer based at least in part on the information received from the etch subsystem.
    Type: Application
    Filed: January 16, 2004
    Publication date: October 21, 2004
    Inventors: Hongwen Li, Lee Luo, Ilias Iliopoulos, Michael D. Armacost