Patents by Inventor Zhi-Wen Sun

Zhi-Wen Sun 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: 8580090
    Abstract: Combinatorial electrochemical deposition is described, including dividing a wafer into a plurality of substrates for combinatorial processing, immersing the plurality of substrates at least partially into a plurality of cells, within one integrated tool, including electrolytes, the cells also including electrodes immersed in the electrolytes, depositing layers on the substrates by applying potentials across the substrates and the electrodes, and varying characteristics of the depositing to perform the combinatorial processing.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 12, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Alexander Gorer, Zhi-Wen Sun
  • Patent number: 8557615
    Abstract: A method for forming a transparent conductive oxide (TCO) film for use in a TFPV solar device comprises the formation of a tin oxide film doped with between about 5 volume % and about 40 volume % antimony (ATO). Advantageously, the Sb concentration generally ranges from about 15 volume % to about 20 volume % and more advantageously, the Sb concentration is about 19 volume %. The ATO films exhibited almost no change in transmission characteristics between about 300 nm and about 1100 nm or resistivity after either a 15 hour exposure to water or an anneal in air for 8 minutes at 650 C, which indicated the excellent durability. Control sample of Al doped zinc oxide (AZO) exhibited degradation of resistivity for both a 15 hour exposure to water and an anneal in air for 8 minutes at 650 C.
    Type: Grant
    Filed: December 3, 2011
    Date of Patent: October 15, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Guowen Ding, Mohd Fadzli Anwar Hassan, Hien Minh Huu Le, Zhi-Wen Sun
  • Patent number: 8551802
    Abstract: A method for forming copper indium gallium (sulfide) selenide (CIGS) solar cells, cadmium telluride (CdTe) solar cells, and copper zinc tin (sulfide) selenide (CZTS) solar cells using laser annealing techniques to anneal the absorber and/or the buffer layers. Laser annealing may result in better crystallinity, lower surface roughness, larger grain size, better compositional homogeneity, a decrease in recombination centers, and increased densification. Additionally, laser annealing may result in the formation of non-equilibrium phases with beneficial results.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: October 8, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Haifan Liang, Jeroen Van Duren, Zhi-Wen Sun
  • Patent number: 8551560
    Abstract: Methods for improving selective deposition of a capping layer on a patterned substrate are presented, the method including: receiving the patterned substrate, the patterned substrate including a conductive region and a dielectric region; forming a molecular masking layer (MML) on the dielectric region; preparing an electroless (ELESS) plating bath, where the ELESS plating bath includes: a cobalt (Co) ion source: a complexing agent: a buffer: a tungsten (W) ion source: and a reducing agent; and reacting the patterned substrate with the ELESS plating bath for an ELESS period at an ELESS temperature and an ELESS pH so that the capping layer is selectively formed on the conductive region. In some embodiments, methods further include a pH adjuster for adjusting the ELESS pH to a range of approximately 9.0 pH to 9.2 pH. In some embodiments, the pH adjuster is tetramethylammonium hydroxide (TMAH). In some embodiments, the MML is hydrophilic.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: October 8, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Jinhong Tong, Zhi-Wen Sun, Chi-I Lang, Nitin Kumar, Bob Kong, Zachary Fresco
  • Patent number: 8545998
    Abstract: Embodiments of the current invention describe a method of plating platinum selectively on a copper film using a self-initiated electroless process. In particular, platinum films are plated onto very thin copper films having a thickness of less than 300 angstroms. The electroless plating solution and the resulting structure are also described. This process has applications in the semiconductor processing of logic devices, memory devices, and photovoltaic devices.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 1, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Bob Kong, Igor Ivanov, Zhi-Wen Sun, Jinhong Tong
  • Publication number: 20130230962
    Abstract: Methods for forming a NiO film on a substrate for use with a resistive switching memory device are presenting including: preparing a nickel ion solution; receiving the substrate, where the substrate includes a bottom electrode, the bottom electrode utilized as a cathode; forming a Ni(OH)2 film on the substrate, where the forming the Ni(OH)2 occurs at the cathode; and annealing the Ni(OH)2 film to form the NiO film, where the NiO film forms a portion of a resistive switching memory element. In some embodiments, methods further include forming a top electrode on the NiO film and before the forming the Ni(OH)2 film, pretreating the substrate. In some embodiments, methods are presented where the bottom electrode and the top electrode are a conductive material.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 5, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Jinhong Tong, Chi-I Lang, Tony Chiang
  • Patent number: 8492189
    Abstract: Embodiments of the current invention include methods of improving a process of forming a textured TCO film by combinatorial methods. The combinatorial method may include depositing a TCO by physical vapor deposition or sputtering, annealing the TCO, and etching the TCO where at least one of the depositing, the annealing, or the etching is performed combinatorially. Embodiments of the current invention also include improved methods of forming the TCO based on the results of combinatorial testing.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: July 23, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Nitin Kumar, Guizhen Zhang, Nikhil Kalyankar, Minh Anh Nguyen
  • Patent number: 8486282
    Abstract: Surface texturing of the transparent conductive oxide (TCO) front contact of a thin film photovoltaic (TFPV) solar cell is needed to enhance the light-trapping capability of the TFPV solar cells and thus improving the solar cell efficiency. Embodiments of the current invention describe chemical formulations and methods for the wet etching of the TCO. The formulations and methods may be optimized to tune the surface texturing of the TCO as desired.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: July 16, 2013
    Assignee: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Nitin Kumar, Guizhen Zhang, Minh Anh Nguyen, Nikhil Kalyankar
  • 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: 20130164561
    Abstract: Embodiments provided herein describe a low-e panel and a method for forming a low-e panel. A transparent substrate is provided. A metal oxide layer is formed over the transparent substrate. The metal oxide layer includes a first element, a second element, and a third element. A reflective layer is formed over the transparent substrate. The first element may include tin or zinc. The second element and the third element may each include tin, zinc, antimony, silicon, strontium, titanium, niobium, zirconium, magnesium, aluminum, yttrium, lanthanum, hafnium, or bismuth. The metal oxide layer may also include nitrogen.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Inventors: Mohd Fadzli Anwar Hassan, Richard Blacker, Guowen Ding, Jingyu Lao, Hien Minh Huu Le, Yiwei Lu, Minh Anh Nguyen, Zhi-Wen Sun
  • Publication number: 20130164560
    Abstract: Embodiments provided herein describe a low-e panel and a method for forming a low-e panel. A transparent substrate is provided. A metal oxynitride layer is formed over the transparent substrate. The metal oxynitride layer includes a first metal and a second metal. A reflective layer is formed over the transparent substrate.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Inventors: Mohd Fadzli Anwar Hassan, Richard Blacker, Yiwei Lu, Minh Anh Nguyen, Zhi-Wen Sun, Guowen Ding, Jingyu Lao, Hien Minh Huu Le
  • Publication number: 20130143354
    Abstract: A method for forming a transparent conductive oxide (TCO) film for use in a TFPV solar device comprises the formation of a tin oxide film doped with between about 5 volume % and about 40 volume % antimony (ATO). Advantageously, the Sb concentration generally ranges from about 15 volume % to about 20 volume % and more advantageously, the Sb concentration is about 19 volume %. The ATO films exhibited almost no change in transmission characteristics between about 300 nm and about 1100 nm or resistivity after either a 15 hour exposure to water or an anneal in air for 8 minutes at 650 C, which indicated the excellent duarability. Control sample of Al doped zinc oxide (AZO) exhibited degradation of resistivity for both a 15 hour exposure to water and an anneal in air for 8 minutes at 650 C.
    Type: Application
    Filed: December 3, 2011
    Publication date: June 6, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Guowen Ding, Mohd Fadzli Anwar Hassan, Hien Minh Huu Le, Zhi-Wen Sun
  • Publication number: 20130136919
    Abstract: A method for forming and protecting high quality bismuth oxide films comprises depositing a transparent thin film on a substrate comprising one of Si, alkali metals, or alkaline earth metals. The transparent thin film is stable at room temperature and at higher temperatures and serves as a diffusion barrier for the diffusion of impurities from the substrate into the bismuth oxide. Reactive sputtering, sputtering from a compound target, or reactive evaporation are used to deposit a bismuth oxide film above the diffusion barrier.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: Intermolecular, Inc.
    Inventors: Guowen Ding, Mohd Fadzli Anwar Hassan, Hien Minh Huu Le, Zhi-Wen Sun
  • Publication number: 20130136932
    Abstract: A transparent dielectric composition comprising tin, oxygen and one of aluminum or magnesium with preferably higher than 15% by weight of aluminum or magnesium offers improved thermal stability over tin oxide with respect to appearance and optical properties under high temperature processes. For example, upon a heat treatment at temperatures higher than 500 C, changes in color and index of refraction of the present transparent dielectric composition are noticeably less than those of tin oxide films of comparable thickness. The transparent dielectric composition can be used in high transmittance, low emissivity coated panels, providing thermal stability so that there are no significant changes in the coating optical and structural properties, such as visible transmission, IR reflectance, microscopic morphological properties, color appearance, and haze characteristics, of the as-coated and heated treated products.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Inventors: Mohd Fadzli Anwar Hassan, Richard Blacker, Guowen Ding, Muhammad Imran, Jingyu Lao, Hien Minh Huu Le, Yiwei Lu, Zhi-Wen Sun
  • Publication number: 20130095237
    Abstract: Methods and compositions for forming porous low refractive index coatings on substrates are provided. The method comprises coating a substrate with a sol-formulation comprising silica based nanoparticles and an alkyltrialkoxysilane based binder. Use of the alkyltrialkoxysilane based binder results in a porous low refractive index coating having bimodal pore distribution including mesopores formed from particle packing and micropores formed from the burning off of organics including the alkyl chain covalently bonded to the silicon. The mass ratio of binder to particles may vary from 0.1 to 20. Porous coatings formed according to the embodiments described herein demonstrate good optical properties (e.g. a low refractive index) while maintaining good mechanical durability due to the presence of a high amount of binder and a close pore structure.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 18, 2013
    Inventors: Nikhil D. Kalyankar, Zhi-Wen Sun, Jeroen Van Duren, Mark Lewis, Liang Liang
  • Publication number: 20130065355
    Abstract: A method for forming copper indium gallium (sulfide) selenide (CIGS) solar cells, cadmium telluride (CdTe) solar cells, and copper zinc tin (sulfide) selenide (CZTS) solar cells using laser annealing techniques to anneal the absorber and/or the buffer layers. Laser annealing may result in better crystallinity, lower surface roughness, larger grain size, better compositional homogeneity, a decrease in recombination centers, and increased densification. Additionally, laser annealing may result in the formation of non-equilibrium phases with beneficial results.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: INTERMOLECULAR, INC.
    Inventors: Haifan Liang, Jeroen Van Duren, Zhi-Wen Sun
  • Publication number: 20130034653
    Abstract: Methods and compositions for forming durable porous low refractive index coatings on substrates are provided. In one embodiment, a method of forming a porous coating on a substrate is provided. The method comprises coating a substrate with a sol-formulation comprising a silane-based binder, silica-based nanoparticles, and an inter-particle interaction modifier for regulating interactions between the silica-based nanoparticles and annealing the coated substrate. Porous coatings formed according to the embodiments described herein demonstrate good optical properties (e.g., a low refractive index) while maintaining good mechanical durability due to the presence of the inter-particle interaction modifier. The inter-particle interaction modifier increases the strength of the particle network countering capillary forces produced during drying to maintain the porosity structure.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Applicant: INTERMOLECULAR, INC.
    Inventors: Nitin Kumar, Nikhil D. Kalyankar, Zhi-Wen Sun
  • 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
  • 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: 8283214
    Abstract: Methods for forming a NiO film on a substrate for use with a resistive switching memory device are presenting including: preparing a nickel ion solution; receiving the substrate, where the substrate includes a bottom electrode, the bottom electrode utilized as a cathode; forming a Ni(OH)2 film on the substrate, where the forming the Ni(OH)2 occurs at the cathode; and annealing the Ni(OH)2 film to form the NiO film, where the NiO film forms a portion of a resistive switching memory element. In some embodiments, methods further include forming a top electrode on the NiO film and before the forming the Ni(OH)2 film, pre-treating the substrate. In some embodiments, methods are presented where the bottom electrode and the top electrode are a conductive material such as: Ni, Pt, Ir, Ti, Al, Cu, Co, Ru, Rh, a Ni alloy, a Pt alloy, an Ir alloy, a Ti alloy, an Al alloy, a Cu alloy, a Co alloy, an Ru alloy, and an Rh alloy.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 9, 2012
    Assignee: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Jinhong Tong, Chi-I Lang, Tony Chiang