Patents by Inventor Wen-Qing Xu

Wen-Qing Xu 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: 20220263489
    Abstract: A bulk acoustic resonator operable in a bulk acoustic mode includes a resonator body mounted to a separate carrier that is not part of the resonator body. The resonator body includes a piezoelectric layer, a device layer, and a top conductive layer on the piezoelectric layer opposite the device layer. The piezoelectric layer is a single crystal of LiNbO3 cut at an angle of 130°±30°. A surface of the device layer opposite the piezoelectric layer is for mounting the resonator body to the carrier.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 18, 2022
    Inventors: Wen-Qing XU, Di Lan, Christopher S. Koeppen
  • Publication number: 20220205084
    Abstract: A method of making a multilayer substrate, which can include a silicon layer having an optically finished surface and a chemical vapor deposition (CVD) grown diamond layer on the optically finished surface of the silicon layer. At the interface of the silicon layer and the diamond layer, the optically finished surface of the silicon layer can have a surface roughness (Ra)?100 nm. A surface of the grown diamond layer opposite the silicon layer can be polished to an optical finish and a light management coating can be applied to the polished surface of the grown diamond layer opposite the silicon layer. A method of forming the multilayer substrate is also disclosed.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 30, 2022
    Inventors: Wen-Qing Xu, Chao Liu, Giovanni Barbarossa, Thomas E. Anderson, Elgin E. Eissler
  • Publication number: 20220205127
    Abstract: A method for forming holes to form holes in a surface of a metal part includes: putting the metal part into a first solution as an anode; applying a first voltage on the metal part to form the first holes in a surface of the metal part; and cleaning and drying the metal part with the first holes. The first solution comprises a first organic solvent, chloride, and a phosphoric acid compound. The disclosure also provides a metal product and a metal composite.
    Type: Application
    Filed: November 17, 2021
    Publication date: June 30, 2022
    Inventors: WEN-CHENG ZHU, BO-LING XU, XIAO-QING FU, XIAO-JIAN WANG, JIAN-HUI PENG
  • Patent number: 11362640
    Abstract: A bulk acoustic resonator operable in a bulk acoustic mode includes a resonator body mounted to a separate carrier that is not part of the resonator body. The resonator body includes a piezoelectric layer, a device layer, and a top conductive layer on the piezoelectric layer opposite the device layer. The piezoelectric layer is a single crystal of LiNbO3 cut at an angle of 130°±30°. A surface of the device layer opposite the piezoelectric layer is for mounting the resonator body to the carrier.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: June 14, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventors: Wen-Qing Xu, Di Lan, Christopher S. Koeppen
  • Patent number: 11313037
    Abstract: A method of making a multilayer substrate, which can include a silicon layer having an optically finished surface and a chemical vapor deposition (CVD) grown diamond layer on the optically finished surface of the silicon layer. At the interface of the silicon layer and the diamond layer, the optically finished surface of the silicon layer can have a surface roughness (Ra)?100 nm. A surface of the grown diamond layer opposite the silicon layer can be polished to an optical finish and a light management coating can be applied to the polished surface of the grown diamond layer opposite the silicon layer. A method of forming the multilayer substrate is also disclosed.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: April 26, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventors: Wen-Qing Xu, Chao Liu, Giovanni Barbarossa, Thomas E. Anderson, Elgin E. Eissler
  • Publication number: 20220085790
    Abstract: An acoustic resonator includes a piezoelectric stack including a piezoelectric layer having a top surface and a bottom surface, a top electrode layer disposed above the top surface, and a bottom electrode layer disposed below the bottom surface. A number of acoustic wave reflectors are disposed on a side of the bottom electrode layer opposite the piezoelectric layer. Each acoustic wave reflector includes a high acoustic impedance layer and may include a low acoustic impedance layer. The acoustic resonator may include a tether that extends laterally to a stacking direction of the layers of the piezoelectric stack. A supporting structure may be coupled to the tether opposite the acoustic resonator for anchoring the acoustic resonator. A mirror, one or more phononic crystals, or both may be positioned on proximate the tether opposite the acoustic resonator to avoid resonant waves from exiting the acoustic resonator in use.
    Type: Application
    Filed: November 26, 2021
    Publication date: March 17, 2022
    Inventors: WEN-QING XU, DI LAN, JING WANG, WEIQI LI, XU HAN, CHAO LIU, ELGIN EISSLER, GIOVANNI BARBAROSSA
  • Publication number: 20220075214
    Abstract: A high-power electro-optic modulator (EOM) is formed to use specialized electrodes of a material selected to have a CTE that matches the CTE of the modulator's crystal. Providing CTE matching reduces the presence of stress-induced birefringence, which is known to cause unwanted modulation of the propagating optical signal. The specialized electrodes are preferably formed of a CuW metal matrix composite having a W/Cu ratio selected to create the matching CTE value. Advantageously, the CuW-based electrodes also exhibit a thermal conductivity about an order of magnitude greater than conventional electrode material (brass, Kovar) and thus provide additional thermal stability to the EOM's performance.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 10, 2022
    Applicant: II-VI Delaware, Inc.
    Inventors: Ryan Davis, Wen-Qing Xu, Elgin Eissler, Fred Kropf
  • Publication number: 20220029602
    Abstract: A bulk acoustic resonator operable in a bulk acoustic mode includes a resonator body mounted to a separate carrier that is not part of the resonator body. The resonator body includes a piezoelectric layer, a device layer, and a top conductive layer on the piezoelectric layer opposite the device layer. A surface of the device layer opposite the piezoelectric layer is for mounting the resonator body to the carrier.
    Type: Application
    Filed: August 9, 2021
    Publication date: January 27, 2022
    Inventors: Di Lan, Wen-Qing Xu, Giovanni Barbarossa
  • Patent number: 11218132
    Abstract: An acoustic resonator includes a piezoelectric stack including a piezoelectric layer having a top surface and a bottom surface, a top electrode layer disposed above the top surface, and a bottom electrode layer disposed below the bottom surface. A number of acoustic wave reflectors are disposed on a side of the bottom electrode layer opposite the piezoelectric layer. Each acoustic wave reflector includes a high acoustic impedance layer and may include a low acoustic impedance layer. The acoustic resonator may include a tether that extends laterally to a stacking direction of the layers of the piezoelectric stack. A supporting structure may be coupled to the tether opposite the acoustic resonator for anchoring the acoustic resonator. A mirror, one or more phononic crystals, or both may be positioned on proximate the tether opposite the acoustic resonator to avoid resonant waves from exiting the acoustic resonator in use.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 4, 2022
    Assignees: II-VI DELAWARE, INC., UNIVERSITY OF SOUTH FLORIDA
    Inventors: Wen-Qing Xu, Di Lan, Jing Wang, Weiqi Li, Xu Han, Chao Liu, Elgin Eissler, Giovanni Barbarossa
  • Publication number: 20210359290
    Abstract: An immobilized chalcogen system or body includes an element of chalcogen, an electrically conductive material, and a hydrophilic membrane gate. The hydrophilic membrane gate may be used to isolate hydrophobic regions, one related to polychalcogenide ion(s) and another related to a hydrophobic electrolyte system. The hydrophilic membrane gate may prevent polychalcogenide from forming, and may provide control of undesirable parasitic mass transport and undesirable electron transport inside a chalcogen-based battery, and thereby allow the battery to cycle at a high specific capacity with a long cycling life. If desired, the immobilized chalcogen system or body may be employed in a cathode of a rechargeable battery.
    Type: Application
    Filed: April 27, 2021
    Publication date: November 18, 2021
    Inventors: Wen-Qing Xu, Christopher Koeppen, Chengkun Xu, Charan Masarupu, Colin Moore, Xiaoming Li
  • Publication number: 20210283881
    Abstract: A wafer has a layer containing silicon, a layer of polycrystalline diamond deposited on the silicon-containing layer, and a bow-compensation layer on the other side of the silicon-containing layer for reducing wafer-bow. A method of making a bonded structure includes an activation process for creating dangling bonds on the surface of one substrate, followed by contact-bonding the surface to a second substrate at low temperature. A bonded structure may include two substrates contact bonded to each other, one substrate including a layer containing silicon, a layer of polycrystalline diamond, a bow-compensation layer for reducing wafer-bow of the first substrate, and the other substrate including gallium nitride, silicon carbide, lithium niobate, lithium tantalate, gallium arsenide, indium phosphide, or another suitable material other than diamond.
    Type: Application
    Filed: April 23, 2021
    Publication date: September 16, 2021
    Inventors: Wen-Qing Xu, Di Lan, Christopher Koeppen
  • Patent number: 11121696
    Abstract: A bulk acoustic resonator operable in a bulk acoustic mode includes a resonator body mounted to a separate carrier that is not part of the resonator body. The resonator body includes a piezoelectric layer, a device layer, and a top conductive layer on the piezoelectric layer opposite the device layer. A surface of the device layer opposite the piezoelectric layer is for mounting the resonator body to the carrier.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 14, 2021
    Assignee: II-VI DELAWARE, INC.
    Inventors: Di Lan, Wen-Qing Xu, Giovanni Barbarossa
  • Publication number: 20210187492
    Abstract: A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, front an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of ran earth metals from acid-leaching slurries or solutions.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 24, 2021
    Inventors: Wen-Qing Xu, Vincent D. Mattera, JR., Marie Ysabel Abella, Gomer M. Abrenica, Shailesh Patkar
  • Publication number: 20210123120
    Abstract: An aluminum alloy wire, more specifically an aluminum-scandium wire, is adapted for an additive processing operation. A spool of material, containing an aluminum alloy wire, and a method of performing an additive processing operation, using an aluminum alloy wire, are also disclosed.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 29, 2021
    Inventors: Wen-Qing XU, Shailesh PATKAR, Xiaoming LI, Di LAN, Stephen P. RUMMEL
  • Patent number: 10933410
    Abstract: A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, from an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of rare earth metals from acid-leaching slurries or solutions.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 2, 2021
    Assignee: II-VI Delaware, Inc.
    Inventors: Wen-Qing Xu, Vincent D. Mattera, Jr., Marie Ysabel R. Abella, Gomer M. Abrenica, Shailesh Patkar
  • Patent number: 10910127
    Abstract: In a method of chemical vapor deposition (CVD) growth of a polycrystalline diamond film in a CVD reactor, a gas mixture of gaseous hydrogen and a gaseous hydrocarbon is introduced into the CVD reactor. A plasma formed from the gas mixture is maintained above a surface of a conductive substrate disposed in the CVD reactor and causes a polycrystalline diamond film to grow on the surface of the conductive substrate. A temperature T at the center of the polycrystalline diamond film is controlled during growth of the polycrystalline diamond film. The CVD grown polycrystalline diamond film includes diamond crystallites that can have a percentage of orientation along a [110] diamond lattice direction?70% of the total number of diamond crystallites forming the polycrystalline diamond film.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: February 2, 2021
    Assignee: II-VI Delaware, Inc.
    Inventors: Wen-Qing Xu, Chao Liu, Charles J. Kraisinger, Charles D. Tanner, Ian Currier, David Sabens, Elgin E. Eissler, Thomas E Anderson
  • Patent number: 10808296
    Abstract: A method for extracting rare earth metals from an acidic slurry or an acidic solution. The method includes providing an acidic slurry or acidic solution; adding a composite comprising an extractant and a polymer resin; mixing the composite with the acidic slurry or acidic solution to form a mixture slurry or solution; and separating the mixture slurry or solution into a rare-earth-metal-loaded composite and a raffinate slurry or solution. The acidic slurry or acidic solution comprises at least one rare earth metal and at least one early transition metal and/or at least one actinide metal.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: October 20, 2020
    Assignee: II-VI Delaware, Inc.
    Inventors: Wen-Qing Xu, Marie Ysabel R. Abella, Gomer M. Abrenica, Louie I. Bedes, Vincent D. Mattera, Shailesh Patkar
  • Publication number: 20200328405
    Abstract: In a method of preparing an immobilized selenium system or body, a selenium-carbon-oxygen mixture is formed. The mixture is then heated to a temperature above the melting temperature of selenium and the heated mixture is then cooled to ambient or room temperature, thereby forming the immobilized selenium system or body.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 15, 2020
    Inventors: Wen-Qing Xu, Xiaoming Li, Shailesh Patkar, Elgin E. Eissler, Marta Sevilla Solis, Antonio Benito Fuertes Arias
  • Publication number: 20200321608
    Abstract: An immobilized chalcogen system or body includes a mixture or combination of chalcogen and carbon. The carbon can be in the form of a carbon skeleton. The chalcogen can include oxygen, sulfur, selenium, or tellurium, or a combination of any two or more of oxygen, sulfur, selenium, and tellurium. The activation energy for chalcogen to escape the immobilized chalcogen system or body is ?96 kJ/mole.
    Type: Application
    Filed: June 5, 2020
    Publication date: October 8, 2020
    Inventors: Wen-Qing Xu, Elgin E. Eissler, Xiaoming Li, Chengkun Xu, Colin Moore, Shailesh Patkar, Christopher S. Koeppen
  • Publication number: 20200303725
    Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: Elgin E. Eissler, Wen-Qing Xu, Yancheng Zhang, Xiaoming Li, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin