Patents by Inventor Chi-I Lang

Chi-I Lang 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).

  • Publication number: 20130167773
    Abstract: Apparatuses and methods for high-deposition-rate sputtering for depositing layers onto a substrate are disclosed. The apparatuses generally comprise a process chamber; one or more sputtering sources disposed within the process chamber, wherein each sputtering source comprises a sputtering target; a substrate support disposed within the process chamber; a shield positioned between the sputtering sources and the substrate, the shield comprising an aperture positioned under each sputtering source; and a transport system connected to the substrate support capable of positioning the substrate such that one of a plurality of site-isolated regions on the substrate can be exposed to sputtered material through the aperture positioned under each of the sputtering sources; wherein the spacing between the sputtering target and the substrate is less than 100 mm. The apparatus enables high deposition rate sputtering onto site-isolated regions on the substrate.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: Intermolecular Inc.
    Inventors: Hong Sheng Yang, Zhendong Hong, Chi-I Lang
  • Publication number: 20130171350
    Abstract: A metal-organic chemical vapor deposition (MOCVD) system is provided for high throughput processing. The system comprises a chamber containing a substrate support system comprising a plurality of substrate support planets operable to support one or more substrates, and a gas emission system operable to provide a plurality of isolated environments suitable for depositing uniform layers on the substrates. The MOCVD system is operable to independently vary one or more process parameters in each isolated environment, and to provide common process parameters to all substrates for depositing one or more layers on all substrates. Methods of forming uniform layers on a substrate are provided wherein at least one of the layers is deposited in an isolated environment.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: Intermolecular Inc.
    Inventors: Philip A. Kraus, Tony P. Chiang, Timothy Joseph Franklin, Chi-I Lang, Sandeep Nijhawan
  • Patent number: 8476107
    Abstract: Resistive switching memory elements are provided that may contain electroless metal electrodes and metal oxides formed from electroless metal. The resistive switching memory elements may exhibit bistability and may be used in high-density multi-layer memory integrated circuits. Electroless conductive materials such as nickel-based materials may be selectively deposited on a conductor on a silicon wafer or other suitable substrate. The electroless conductive materials can be oxidized to form a metal oxide for a resistive switching memory element. Multiple layers of conductive materials can be deposited each of which has a different oxidation rate. The differential oxidization rates of the conductive layers can be exploited to ensure that metal oxide layers of desired thicknesses are formed during fabrication.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 2, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Nitin Kumar, Chi-I Lang, Tony Chiang, Zhi-Wen Sun, Jinhong Tong
  • Publication number: 20130162995
    Abstract: A method of measuring the thickness of a one or more layers using ellipsometry is presented which overcomes problems with fitting a model to data collected in the presence of a top surface having a surface roughness (peak-to-trough) greater than about 100 ?. Prior to measurement, the top layer is pretreated to form an oxide layer of thickness between about 15 ? and about 30 ?. Ellipsometry data as a function of wavelength is then collected, and the ellipsometry data is fitted to a model including the oxide layer. For layers of doped polycrystalline silicon layers with a rough surface, the model comprises a layer consisting of a mixture of polycrystalline silicon and amorphous silicon and a top layer consisting of a mixture of polycrystalline silicon and silicon dioxide, and the pretreatment can be performed for about 10 minutes at 600 C in an oxygen atmosphere.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Shuogang Huang, Chi-I Lang, Jeffrey Chih-Hou Lowe, Wen-Guang Yu
  • Publication number: 20130146442
    Abstract: In one aspect of the invention, a sputter source is provided. The sputter source includes a target source affixed to a bottom plate of the sputter source. A plurality of magnets spaced apart from each other is included. The plurality of magnets is disposed above a surface of the bottom plate, wherein a surface of the target source is profiled such that the target source has a minimum thickness aligned with an axis of each of the plurality of magnets and a maximum thickness aligned with an axis of a gap defined between each of the plurality of magnets. A method of processing a substrate is also included.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: INTERMOLECULAR, INC.
    Inventors: HONG SHENG YANG, CHI-I LANG
  • Publication number: 20130140511
    Abstract: A resistive-switching memory element is described. The memory element includes a first electrode, a porous layer over the first electrode including a point defect embedded in a plurality of pores of the porous layer, and a second electrode over the porous layer, wherein the nonvolatile memory element is configured to switch between a high resistive state and a low resistive state.
    Type: Application
    Filed: September 21, 2012
    Publication date: June 6, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Tony Chiang, Chi-I Lang, Prashant Phatak
  • Publication number: 20130125818
    Abstract: In some embodiments of the present invention, one or more small spot showerhead apparatus are used to deposit materials using CVD, PECVD, ALD, or PEALD on small spots in a site isolated, combinatorial manner. The small spot showerheads may be configured within a larger combinatorial showerhead to allow multi-layer film stacks to be deposited in a combinatorial manner.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Jason Wright, Tony Chiang, Chi-I Lang
  • Publication number: 20130130464
    Abstract: In some embodiments, the present invention discloses plasma processing at interfaces of an ALD metal oxide film with top and bottom electrodes to improve the ReRAM device characteristics. The interface processing can comprise an oxygen inhibitor step with a bottom polysilicon electrode to prevent oxidation of the polysilicon layer, enhancing the electrical contact of the metal oxide film with the polysilicon electrode. The interface processing can comprise an oxygen enrichment step with a top metal electrode to increase the resistivity of the metal oxide layer, providing an integrated current limiter layer.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Albert Lee, Chi-I Lang
  • Patent number: 8440259
    Abstract: A combinatorial processing chamber and method are provided. In the method a fluid volume flows over a surface of a substrate with differing portions of the fluid volume having different constituent components to concurrently expose segregated regions of the substrate to a mixture of the constituent components that differ from constituent components to which adjacent regions are exposed. Differently processed segregated regions are generated through the multiple flowings.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: May 14, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Tony P. Chiang, Sunil Shanker, Chi-I Lang
  • Patent number: 8432177
    Abstract: Measuring current-voltage (I-V) characteristics of a solar cell using a lamp that emits light, a substrate that includes a plurality of solar cells, a positive electrode attached to the solar cells, and a negative electrode peripherally deposited around each of the solar cells and connected to a common ground, an articulation platform coupled to the substrate, a multi-probe switching matrix or a Z-stage device, a programmable switch box coupled to the multi-probe switching matrix or Z-stage device and selectively articulating the probes by raising the probes until in contact with at least one of the positive electrode and the negative electrode and lowering the probes until contact is lost with at least one of the positive electrode and the negative electrode, a source meter coupled to the programmable switch box and measuring the I-V characteristics of the substrate.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: April 30, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Yun Wang, Tony P. Chiang, Chi-I Lang
  • Publication number: 20130101749
    Abstract: In one aspect of the invention, a process chamber is provided. The process chamber includes a plurality of sputter guns with a target and a main magnet affixed to one end of each of the sputter guns. A substrate support is disposed at a distance from the plurality of sputter guns. An auxiliary magnet is disposed near the substrate. The auxiliary magnet surrounds an outer peripheral surface of the substrate support. In alternative embodiments the magnet may be disposed in a plate or holder disposed below or above the substrate support. In additional embodiments, the auxiliary magnet may be embedded within the substrate support. Furthermore, the auxiliary magnet can either be permanent magnets or electromagnets. A method of performing a deposition process is also included.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Applicant: INTERMOLECULAR, INC.
    Inventors: Hong Sheng Yang, Chi-I Lang
  • Publication number: 20130101750
    Abstract: In one aspect of the invention, a process chamber is provided. The chamber includes a plurality of sputter guns with a target affixed to one end of each of the sputter guns. Each of the plurality of sputter guns is coupled to a first power source. The first power source is operable to provide a pulsed power supply to each of the plurality of sputter guns. The pulsed power supply has a duty cycle that is less than 30%. A substrate support disposed at a distance from the plurality of sputter guns is included. The substrate support is coupled to a second power source. The second power source is operable to bias a substrate disposed on the substrate support, wherein the duty cycle of the second power source is synchronized with a duty cycle of the first power source. A method of performing a deposition process is also included.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Applicant: INTERMOLECULAR, INC.
    Inventors: Hong Sheng Yang, Tony P. Chiang, Kent Riley Child, Chi-I Lang, ShouQian Shao
  • Patent number: 8426970
    Abstract: Methods for substrate processing are described. The methods include forming a material layer on a substrate. The methods include selecting constituents of a molecular masking layer (MML) to remove an effect of variations in the material layer as a result of substrate processing. The methods include normalizing the surface characteristics of the material layer by selectively depositing the MML on the material layer.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: April 23, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Zachary Fresco, Chi-I Lang, Sandra G. Malhotra, Tony P. Chiang, Thomas R. Boussie, Nitin Kumar, Jinhong Tong, Anh Duong
  • Patent number: 8370096
    Abstract: A method and system includes a first substrate and a second substrate, each substrate comprising a predetermined baseline transmittance value at a predetermine wavelength of light, processing regions on the first substrate by combinatorially varying at least one of materials, process conditions, unit processes, and process sequences associated with the graphene production, performing a first characterization test on the processed regions on the first substrate to generate first results, processing regions on a second substrate in a combinatorial manner by varying at least one of materials, process conditions, unit processes, and process sequences associated with the graphene production based on the first results of the first characterization test, performing a second characterization test on the processed regions on the second substrate to generate second results, and determining whether at least one of the first substrate and the second substrate meet a predetermined quality threshold based on the second res
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 5, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Charlene Chen, Tony P. Chiang, Chi-I Lang, Yun Wang
  • Publication number: 20130023066
    Abstract: A system and method of increasing productivity of OLED material screening includes providing a substrate that includes an organic semiconductor, processing regions on the substrate by combinatorially varying parameters associated with the OLED device production on the substrate, performing a first characterization test on the processed regions on the substrate to generate first results, processing regions on the substrate in a combinatorial manner by varying parameters associated with the OLED device production on the substrate based on the first results of the first characterization test, performing a second characterization test on the processed regions on the substrate to generate second results, and determining whether the substrate meets a predetermined quality threshold based on the second results.
    Type: Application
    Filed: September 21, 2012
    Publication date: January 24, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Yun Wang, Tony P. Chiang, Chi-I Lang
  • Patent number: 8344375
    Abstract: Nonvolatile memory elements are provided that have resistive switching metal oxides. The nonvolatile memory elements may be formed by depositing a metal-containing material on a silicon-containing material. The metal-containing material may be oxidized to form a resistive-switching metal oxide. The silicon in the silicon-containing material reacts with the metal in the metal-containing material when heat is applied. This forms a metal silicide lower electrode for the nonvolatile memory element. An upper electrode may be deposited on top of the metal oxide. Because the silicon in the silicon-containing layer reacts with some of the metal in the metal-containing layer, the resistive-switching metal oxide that is formed is metal deficient when compared to a stoichiometric metal oxide formed from the same metal.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: January 1, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Nitin Kumar, Tony Chiang, Chi-I Lang, Prashant B Phatak, Jinhong Tong
  • Publication number: 20120325109
    Abstract: Embodiments of the current invention describe methods of processing a semiconductor substrate that include applying a zincating solution to the semiconductor substrate to form a zinc passivation layer on the titanium-containing layer, the zincating solution comprising a zinc salt, FeCl3, and a pH adjuster.
    Type: Application
    Filed: December 22, 2011
    Publication date: December 27, 2012
    Applicant: Intermolecular, Inc.
    Inventors: Bob Kong, Zhi-Wen Sun, Chi-I Lang, Jinhong Tong, Tony Chiang
  • Patent number: 8334015
    Abstract: A combinatorial processing chamber and method are provided. In the method a fluid volume flows over a surface of a substrate with differing portions of the fluid volume having different constituent components to concurrently expose segregated regions of the substrate to a mixture of the constituent components that differ from constituent components to which adjacent regions are exposed. Differently processed segregated regions are generated through the multiple flowings.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: December 18, 2012
    Assignee: Intermolecular, Inc.
    Inventors: Tony P. Chiang, Sunil Shanker, Chi-I Lang
  • Publication number: 20120295436
    Abstract: Embodiments of the current invention describe methods of processing a semiconductor substrate that include applying a zincating solution to the semiconductor substrate to form a zinc passivation layer on the titanium-containing layer, the zincating solution comprising a zinc salt, FeCl3, and a pH adjuster.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 22, 2012
    Applicant: Intermolecular, Inc.
    Inventors: Bob Kong, Zhi-Wen Sun, Chi-I Lang, Jinhong Tong, Tony Chiang
  • Patent number: 8298891
    Abstract: A resistive-switching memory element is described. The memory element includes a first electrode, a porous layer over the first electrode including a point defect embedded in a plurality of pores of the porous layer, and a second electrode over the porous layer, wherein the nonvolatile memory element is configured to switch between a high resistive state and a low resistive state.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: October 30, 2012
    Assignee: Intermolecular, Inc.
    Inventors: Tony Chiang, Prashant Phatak, Chi-I Lang