Patents by Inventor L. Hwang

L. Hwang 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: 10290504
    Abstract: Embodiments described herein generally relate to a method and apparatus for plasma treating a process chamber. A substrate having a gate stack formed thereon may be placed in a process chamber, and hydrogen containing plasma may be used to treat the gate stack in order to cure the defects in the gate stack. As the result of hydrogen containing plasma treatment, the gate stack has lower leakage and improved reliability. To protect the process chamber from Hx+ ions and H* radicals generated by the hydrogen containing plasma, the process chamber may be treated with a plasma without the substrate placed therein and prior to the hydrogen containing plasma treatment. In addition, components of the process chamber that are made of a dielectric material may be coated with a ceramic coating including an yttrium containing oxide in order to protect the components from the plasma.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 14, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Wei Liu, Theresa Kramer Guarini, Huy Q. Nguyen, Malcolm Bevan, Houda Graoui, Philip A. Bottini, Bernard L. Hwang, Lara Hawrylchak, Rene George
  • Publication number: 20190088485
    Abstract: Embodiments of the disclosure provide an improved apparatus and methods for nitridation of stacks of materials. In one embodiment, a method for processing a substrate in a processing region of a process chamber is provided. The method includes generating and flowing plasma species from a remote plasma source to a delivery member having a longitudinal passageway, flowing plasma species from the longitudinal passageway to an inlet port formed in a sidewall of the process chamber, wherein the plasma species are flowed at an angle into the inlet port to promote collision of ions or reaction of ions with electrons or charged particles in the plasma species such that ions are substantially eliminated from the plasma species before entering the processing region of the process chamber, and selectively incorporating atomic radicals from the plasma species in silicon or polysilicon regions of the substrate.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 21, 2019
    Inventors: Matthew Scott ROGERS, Roger CURTIS, Lara HAWRYLCHAK, Ken Kaung LAI, Bernard L. HWANG, Jeffrey TOBIN, Christopher S. OLSEN, Malcolm BEVAN
  • Patent number: 10049881
    Abstract: Embodiments of the invention provide an improved apparatus and methods for nitridation of stacks of materials. In one embodiment, a remote plasma system includes a remote plasma chamber defining a first region for generating a plasma comprising ions and radicals, a process chamber defining a second region for processing a semiconductor device, the process chamber comprising an inlet port formed in a sidewall of the process chamber, the inlet port being in fluid communication with the second region, and a delivery member disposed between the remote plasma chamber and the process chamber and having a passageway in fluid communication with the first region and the inlet port, wherein the delivery member is configured such that a longitudinal axis of the passageway intersects at an angle of about 20 degrees to about 80 degrees with respect to a longitudinal axis of the inlet port.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 14, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Matthew S. Rogers, Roger Curtis, Lara Hawrylchak, Ken Kaung Lai, Bernard L. Hwang, Jeffrey Tobin, Christopher Olsen, Malcolm J. Bevan
  • Publication number: 20180082847
    Abstract: Embodiments described herein generally relate to a method and apparatus for plasma treating a process chamber. A substrate having a gate stack formed thereon may be placed in a process chamber, and hydrogen containing plasma may be used to treat the gate stack in order to cure the defects in the gate stack. As the result of hydrogen containing plasma treatment, the gate stack has lower leakage and improved reliability. To protect the process chamber from Hx+ ions and H* radicals generated by the hydrogen containing plasma, the process chamber may be treated with a plasma without the substrate placed therein and prior to the hydrogen containing plasma treatment. In addition, components of the process chamber that are made of a dielectric material may be coated with a ceramic coating including an yttrium containing oxide in order to protect the components from the plasma.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 22, 2018
    Inventors: Wei LIU, Theresa Kramer GUARINI, Huy Q. NGUYEN, Malcolm BEVAN, Houda GRAOUI, Philip A. BOTTINI, Bernard L. HWANG, Lara HAWRYLCHAK, Rene GEORGE
  • Patent number: 9831091
    Abstract: Embodiments described herein generally relate to a method and apparatus for plasma treating a process chamber. A substrate having a gate stack formed thereon may be placed in a process chamber, and hydrogen containing plasma may be used to treat the gate stack in order to cure the defects in the gate stack. As the result of hydrogen containing plasma treatment, the gate stack has lower leakage and improved reliability. To protect the process chamber from Hx+ ions and H* radicals generated by the hydrogen containing plasma, the process chamber may be treated with a plasma without the substrate placed therein and prior to the hydrogen containing plasma treatment. In addition, components of the process chamber that are made of a dielectric material may be coated with a ceramic coating including an yttrium containing oxide in order to protect the components from the plasma.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: November 28, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Wei Liu, Theresa Kramer Guarini, Huy Q. Nguyen, Malcolm Bevan, Houda Graoui, Philip A. Bottini, Bernard L. Hwang, Lara Hawrylchak, Rene George
  • Publication number: 20170314124
    Abstract: Implementations of the present disclosure include methods and apparatuses utilized to reduce particle generation within a processing chamber. In one implementation, a lid for a substrate processing chamber is provided. The lid includes a cover member having a first surface and a second surface opposite the first surface, a central opening through the cover member, wherein an inner profile of the central opening includes a first section having a first diameter, a second section having a second diameter, and a third section having a third diameter, wherein the second diameter is between the first diameter and the third diameter, and the first diameter increases from the second section toward the first surface of the cover member, and a trench formed along a closed path in the first surface and having a recess formed in an inner surface of the trench.
    Type: Application
    Filed: March 16, 2017
    Publication date: November 2, 2017
    Inventor: Bernard L. HWANG
  • Publication number: 20170103296
    Abstract: A wireless input device comprises a plurality of RFID tag units and keys. Each RFID tag unit is coupled with two conductive wires. Only when the two conductive wires are in a closed-loop status, the RFID tag unit can generate a responsive RF signal corresponding to a scanning signal generated by a host device. Each key is formed with a switching mechanism connectable to the conductive wires of at least one of the RFID tag units. When any one of the keys is pressed, the conductive wires connectable to the pressed key will be switched to the closed-loop status from an open-loop status, and when that pressed key is released, the conductive wires connectable to the released key will be switched back to said open-loop status. Therefore, the wireless input device can be operated without the need of internal electric power.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 13, 2017
    Inventors: Richard Hwang, Memiee L. Hwang
  • Patent number: 9600756
    Abstract: A wireless input device comprises a plurality of RFID tag units and keys. Each RFID tag unit is coupled with two conductive wires. Only when the two conductive wires are in a closed-loop status, the RFID tag unit can generate a responsive RF signal corresponding to a scanning signal generated by a host device. Each key is formed with a switching mechanism connectable to the conductive wires of at least one of the RFID tag units. When any one of the keys is pressed, the conductive wires connectable to the pressed key will be switched to the closed-loop status from an open-loop status, and when that pressed key is released, the conductive wires connectable to the released key will be switched back to said open-loop status. Therefore, the wireless input device can be operated without the need of internal electric power.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: March 21, 2017
    Inventors: Richard Hwang, Memiee L. Hwang
  • Publication number: 20160358781
    Abstract: Embodiments described herein generally relate to a method and apparatus for plasma treating a process chamber. A substrate having a gate stack formed thereon may be placed in a process chamber, and hydrogen containing plasma may be used to treat the gate stack in order to cure the defects in the gate stack. As the result of hydrogen containing plasma treatment, the gate stack has lower leakage and improved reliability. To protect the process chamber from Hx+ ions and H* radicals generated by the hydrogen containing plasma, the process chamber may be treated with a plasma without the substrate placed therein and prior to the hydrogen containing plasma treatment. In addition, components of the process chamber that are made of a dielectric material may be coated with a ceramic coating including an yttrium containing oxide in order to protect the components from the plasma.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Inventors: Wei LIU, Theresa Kramer GUARINI, Huy Q. NGUYEN, Malcolm BEVAN, Houda GRAOUI, Philip A. BOTTINI, Bernard L. HWANG, Lara HAWRYLCHAK, Rene GEORGE
  • Patent number: 9340023
    Abstract: A method of making inkjet print heads may include forming a first wafer including a sacrificial substrate layer, and a first dielectric layer thereon having first openings therein defining inkjet orifices. The method may also include forming a second wafer having inkjet chambers defined thereon, and joining the first and second wafers together so that each inkjet orifice is aligned with a respective inkjet chamber. The method may further include removing the sacrificial substrate layer thereby defining the inkjet print heads.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: May 17, 2016
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Paul I. Mikulan, Kenneth J. Stewart, Virgina L. Hwang
  • Patent number: 9312154
    Abstract: Embodiments of the invention provide improved apparatus for depositing layers on substrates, such as by chemical vapor deposition (CVD). The inventive apparatus disclosed herein may advantageously facilitate one or more of depositing films having reduced film thickness non-uniformity within a given process chamber, improved particle performance (e.g., reduced particles on films formed in the process chamber), chamber-to-chamber performance matching amongst a plurality of process chambers, and improved process chamber serviceability.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: April 12, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Binh Tran, Anqing Cui, Bernard L. Hwang, Son T. Nguyen, Anh N. Nguyen, Sean M. Seutter, Xianzhi Tao
  • Publication number: 20150332941
    Abstract: Methods and apparatus for processing a substrate are provided. In some embodiments, a method of processing a substrate having a first layer may include disposing a substrate atop a substrate support in a lower processing volume of a process chamber beneath an ion shield having a bias power applied thereto, the ion shield comprising a substantially flat member supported parallel to the substrate support, and a plurality of apertures formed through the flat member, wherein the ratio of the aperture diameter to the thickness flat member ranges from about 10:1-1:10; flowing a process gas into an upper processing volume above the ion shield; forming a plasma from the process gas within the upper processing volume; treating the first layer with neutral radicals that pass through the ion shield; and heating the substrate to a temperature of up to about 550 degrees Celsius while treating the first layer.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 19, 2015
    Inventors: JEFFREY TOBIN, BERNARD L. HWANG, CANFENG LAI, LARA HAWRYLCHAK, WEI LIU, JOHANES SWENBERG
  • Patent number: 9117867
    Abstract: Embodiments of electrostatic chucks for substrate processing are provided herein. In some embodiments, an electrostatic chuck may include a puck for supporting a substrate, the puck formed from a dielectric material and having a chucking electrode disposed within the puck proximate a support surface of the puck to electrostatically retain the substrate when disposed on the puck; a base having a ring extending from the base to support the puck; and a spacer disposed between the base and the puck to support the puck above the base such that a gap is formed between the puck and the base, wherein the spacer supports the puck proximate a peripheral edge of the puck.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 25, 2015
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Bernard L. Hwang, Jose Antonio Marin, Son T. Nguyen
  • Patent number: 9048190
    Abstract: Methods and apparatus for processing a substrate are provided. In some embodiments, a method of processing a substrate having a first layer may include disposing a substrate atop a substrate support in a lower processing volume of a process chamber beneath an ion shield having a bias power applied thereto, the ion shield comprising a substantially flat member supported parallel to the substrate support, and a plurality of apertures formed through the flat member, wherein the ratio of the aperture diameter to the thickness flat member ranges from about 10:1-1:10; flowing a process gas into an upper processing volume above the ion shield; forming a plasma from the process gas within the upper processing volume; treating the first layer with neutral radicals that pass through the ion shield; and heating the substrate to a temperature of up to about 550 degrees Celsius while treating the first layer.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 2, 2015
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jeffrey Tobin, Bernard L. Hwang, Canfeng Lai, Lara Hawrylchak, Wei Liu, Johanes Swenberg
  • Publication number: 20140356990
    Abstract: A method of making inkjet print heads may include forming a first wafer including a sacrificial substrate layer, and a first dielectric layer thereon having first openings therein defining inkjet orifices. The method may also include forming a second wafer having inkjet chambers defined thereon, and joining the first and second wafers together so that each inkjet orifice is aligned with a respective inkjet chamber. The method may further include removing the sacrificial substrate layer thereby defining the inkjet print heads.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Applicant: STMICROELECTRONICS, INC.
    Inventors: Paul MIKULAN, Kenneth J. STEWART, Virginia L. HWANG
  • Publication number: 20140099795
    Abstract: Methods and apparatus for processing a substrate are provided. In some embodiments, a method of processing a substrate having a first layer may include disposing a substrate atop a substrate support in a lower processing volume of a process chamber beneath an ion shield having a bias power applied thereto, the ion shield comprising a substantially flat member supported parallel to the substrate support, and a plurality of apertures formed through the flat member, wherein the ratio of the aperture diameter to the thickness flat member ranges from about 10:1-1:10; flowing a process gas into an upper processing volume above the ion shield; forming a plasma from the process gas within the upper processing volume; treating the first layer with neutral radicals that pass through the ion shield; and heating the substrate to a temperature of up to about 550 degrees Celsius while treating the first layer.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 10, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: JEFFREY TOBIN, BERNARD L. HWANG, CANFENG LAI, LARA HAWRYLCHAK, WEI LIU, JOHANES SWENBERG
  • Patent number: 8614305
    Abstract: Embodiments are related to nonviral gene delivery vectors using only FDA-approved components: iopamidol, protamine, and ethiodized oil.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: December 24, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Lawrence V. Hofmann, Gloria L. Hwang, Luke J Higgins
  • Publication number: 20130131154
    Abstract: Embodiments are related to nonviral gene delivery vectors using only FDA-approved components: iopamidol, protamine, and ethiodized oil.
    Type: Application
    Filed: March 11, 2011
    Publication date: May 23, 2013
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Lawrence V. Hofmann, Gloria L. Hwang, Luke J. Higgins
  • Publication number: 20130040444
    Abstract: Embodiments of the invention provide an improved apparatus and methods for nitridation of stacks of materials. In one embodiment, a remote plasma system includes a remote plasma chamber defining a first region for generating a plasma comprising ions and radicals, a process chamber defining a second region for processing a semiconductor device, the process chamber comprising an inlet port formed in a sidewall of the process chamber, the inlet port being in fluid communication with the second region, and a delivery member disposed between the remote plasma chamber and the process chamber and having a passageway in fluid communication with the first region and the inlet port, wherein the delivery member is configured such that a longitudinal axis of the passageway intersects at an angle of about 20 degrees to about 80 degrees with respect to a longitudinal axis of the inlet port.
    Type: Application
    Filed: June 28, 2012
    Publication date: February 14, 2013
    Applicant: Applied Materials, Inc.
    Inventors: MATTHEW S. ROGERS, Roger Curtis, Lara Hawrylchak, Ken Kaung Lai, Bernard L. Hwang, Jeffrey Tobin, Christopher Olsen, Malcom J. Bevan
  • Publication number: 20130001899
    Abstract: Embodiments of electrostatic chucks for substrate processing are provided herein. In some embodiments, an electrostatic chuck may include a puck for supporting a substrate, the puck formed from a dielectric material and having a chucking electrode disposed within the puck proximate a support surface of the puck to electrostatically retain the substrate when disposed on the puck; a base having a ring extending from the base to support the puck; and a spacer disposed between the base and the puck to support the puck above the base such that a gap is formed between the puck and the base, wherein the spacer supports the puck proximate a peripheral edge of the puck.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: APPLIED MATERIALS, INC.
    Inventors: BERNARD L. HWANG, JOSE ANTONIO MARIN, SON T. NGUYEN