Patents by Inventor Jonathan Weiguo Zhang

Jonathan Weiguo Zhang 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: 8906446
    Abstract: An apparatus is provided having a closable chamber that can be sealed and is capable of withstanding an increased pressure and high temperature. The chamber has several inlet ports for the supply of various process liquids, such as deposition solutions, DI water for rinsing, etc., and a port for the supply of a gas under pressure. The apparatus also includes a solution heater and a control system for controlling temperature and pressure in the chamber. Uniform deposition is achieved by carrying out the deposition process under pressure and under temperature slightly below the boiling point of the solution. The solution can be supplied from above via a shower head formed in the cover, or through the bottom of the chamber. Rinsing or other auxiliary solutions are supplied via a radially moveable chemical dispensing arm that can be arranged above the substrate parallel thereto.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: December 9, 2014
    Assignee: Lam Research Corporation
    Inventors: Igor C. Ivanov, Jonathan Weiguo Zhang, Artur Kolics
  • Publication number: 20120213914
    Abstract: An apparatus is provided having a closable chamber that can be sealed and is capable of withstanding an increased pressure and high temperature. The chamber has several inlet ports for the supply of various process liquids, such as deposition solutions, water for rinsing, etc., and a port for the supply of a gas under pressure. The apparatus also includes a solution heater and a control system for controlling temperature and pressure in the chamber. Uniform deposition is achieved by carrying out the deposition process under pressure and under temperature slightly below the boiling point of the solution. The solution can be supplied from above via a shower head formed in the cover, or through the bottom of the chamber. Rinsing or other auxiliary solutions are supplied via a radially moveable chemical dispensing arm that can be arranged above the substrate parallel thereto.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 23, 2012
    Applicant: LAM RESEARCH CORPORATION
    Inventors: Igor C. Ivanov, Jonathan Weiguo Zhang, Artur Kolics
  • Patent number: 8128987
    Abstract: A method for electroless deposition from a deposition solution in a working chamber, where the process can include heating the deposition solution to its boiling point and subsequently reducing the temperature of the deposition solution to a working temperature range that is between approximately 1% and approximately 25% below the boiling point of said solution under a predetermined pressure; and the process also can include heating the deposition solution while filling an enclosed area of the chamber such that the deposition solution reaches its boiling point immediately after the enclosed area is filled.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: March 6, 2012
    Assignee: Lam Research Corp.
    Inventors: Igor C. Ivanov, Jonathan Weiguo Zhang, Artur Kolics
  • Patent number: 6939403
    Abstract: The present invention discloses a station, e.g., for IC fabrication with a flexible configuration. It consists of an array of processing chambers, which are grouped into processing modules and arranged in a two-dimensional fashion, in vertical levels and horizontal rows, and is capable of operating independent of each other. Each processing chamber can perform electroless deposition and other related processing steps sequentially on a wafer with more than one processing fluid without having to remove it from the chamber. The system is served by a single common industrial robot, which may have random access to all the working chambers and cells of the storage unit for transporting wafers between the wafer cassettes and inlet/outlets ports of any of the chemical processing chambers. The station occupies a service-room floor space and a clean-room floor space.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: September 6, 2005
    Assignee: Blue29, LLC
    Inventors: Igor Ivanov, Chiu Ting, Jonathan Weiguo Zhang, Arthur Kolics
  • Patent number: 6935638
    Abstract: A universal substrate holder of the invention for treating wafer substrates in liquids is provided with a shaft and a rod slidingly inserted into the central opening of the shaft. The end of the shaft that protrudes into the bowl supports a base platform for the substrate, while the end of the rod that protrudes into the bowl has radial arms that rigidly support an annular plate with pins that can pass through the opening of the base platform so that they can support the substrate above the surface of the platform. The annular plate supports clamping jaws made in the form of two-arm levers with shorter arms and longer arms. The longer arms are heavier and therefore in the stationary state of the holder keep the jaws turned into an open position. When the shaft begins to rotate, the jaws are turned under the effect of centrifugal forces into positions of clamping the substrate with the shorter arms.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: August 30, 2005
    Assignee: Blue29, LLC
    Inventors: Igor C. Ivanov, Jonathan Weiguo Zhang
  • Patent number: 6913651
    Abstract: An apparatus of the invention has a closable chamber that can be sealed and is capable of withstanding an increased pressure and high temperature. The chamber contains a substrate holder that can be rotated around a vertical axis, and an edge-grip mechanism inside the substrate holder. The deposition chamber has several inlet ports for the supply of various process liquids, such as deposition solutions, DI water for rinsing, etc., and a port for the supply of a gas under pressure. The apparatus is also provided with reservoirs and tanks for processing liquids and gases, as well as with a solution heater and a control system for controlling temperature and pressure in the chamber. The heater can be located outside the working chamber or built into the substrate holder, or both heaters can be used simultaneously. Uniform deposition is achieved by carrying out the deposition process under pressure and under temperature slightly below the boiling point of the solution.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 5, 2005
    Assignee: Blue29, LLC
    Inventors: Igor Ivanov, Jonathan Weiguo Zhang, Artur Kolics
  • Patent number: 6908512
    Abstract: A substrate holder has a disk-like body with a central recess having diameter smaller than the diameter of the substrate placed onto the upper surface of the holder. The substrate can be clamped in place by the clamps of the edge-grip mechanism or placed into a seat without the use of clamps. In both cases, the substrate forms a partial wall that confines the heating/cooling recess or chamber. The aforementioned recess is filled with a cooling or heating liquid (depending on the mode of metal deposition) selectively supplied from a liquid heating or cooling system. In order to ensure in the working chamber above the substrate a pressure slightly higher than the pressure in the cooling/heating recess, the working chamber is first filled with the working solution under the atmospheric pressure, and then the recess is filled with a heating or cooling liquid with simultaneous increase of pressure in the working chamber to a level slightly exceeding the pressure in the recess.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: June 21, 2005
    Assignee: Blue29, LLC
    Inventors: Igor C. Ivanov, Jonathan Weiguo Zhang, Artur Kolics
  • Publication number: 20040094087
    Abstract: The present invention discloses a station, e.g., for IC fabrication with a flexible configuration. It consists of an array of processing chambers, which are grouped into processing modules and arranged in a two-dimensional fashion, in vertical levels and horizontal rows, and is capable of operating independent of each other. Each processing chamber can perform electroless deposition and other related processing steps sequentially on a wafer with more than one processing fluid without having to remove it from the chamber. The system is served by a single common industrial robot, which may have a random to access to all the working chambers and cells of the storage unit for transporting wafers between the wafer cassettes and inlet/outlets ports of any of the chemical processing chambers. The station occupies a service-room floor space and a clean-room floor space.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventors: Igor Ivanov, Chiu Ting, Jonathan Weiguo Zhang, Arthur Kolics
  • Publication number: 20040084143
    Abstract: A substrate holder has a disk-like body with a central recess having diameter smaller than the diameter of the substrate placed onto the upper surface of the holder. The substrate can be clamped in place by the clamps of the edge-grip mechanism or placed into a seat without the use of clamps. In both cases, the substrate forms a partial wall that confines the heating/cooling recess or chamber. The aforementioned recess is filled with a cooling or heating liquid (depending on the mode of metal deposition) selectively supplied from a liquid heating or cooling system. In order to ensure in the working chamber above the substrate a pressure slightly higher than the pressure in the cooling/heating recess, the working chamber is first filled with the working solution under the atmospheric pressure, and then the recess is filled with a heating or cooling liquid with simultaneous increase of pressure in the working chamber to a level slightly exceeding the pressure in the recess.
    Type: Application
    Filed: September 20, 2002
    Publication date: May 6, 2004
    Inventors: Igor Ivanov, Jonathan Weiguo Zhang, Arthur Kolics
  • Publication number: 20040052963
    Abstract: The method for electroless deposition of a coating material, which may be a metal, semiconductor, or dielectric, that is carried out at a relatively low temperature of the working solution compensated by an increased temperature on the substrate which is controlled by a heater built into the substrate chuck. A decrease in the temperature of the working solution prevents thermal decomposition of the solution and reduces formation of gas bubbles, normally generated at increased temperatures. Accumulation of bubbles on the surface of the substrate is further prevented due to upwardly-facing orientation of the treated surface of the substrate. The substrate holder is equipped with a substrate heater and a substrate cooler, that can be used alternatingly for quick heating or cooling of the substrate surface.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 18, 2004
    Inventors: Igor Ivanov, Jonathan (Weiguo) Zhang, Arthur Kolics
  • Publication number: 20030181040
    Abstract: An apparatus of the invention has a closable chamber that can be sealed and is capable of withstanding an increased pressure and high temperature. The chamber contains a substrate holder that can be rotated around a vertical axis, and an edge-grip mechanism inside the substrate holder. The deposition chamber has several inlet ports for the supply of various process liquids, such as deposition solutions, DI water for rinsing, etc., and a port for the supply of a gas under pressure. The apparatus is also provided with reservoirs and tanks for processing liquids and gases, as well as with a solution heater and a control system for controlling temperature and pressure in the chamber. The heater can be located outside the working chamber or built into the substrate holder, or both heaters can be used simultaneously. Uniform deposition is achieved by carrying out the deposition process under pressure and under temperature slightly below the boiling point of the solution.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Inventors: Igor Ivanov, Jonathan Weiguo Zhang, Artur Kolics