Patents by Inventor Xuena Zhang

Xuena 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).

  • Publication number: 20240044821
    Abstract: Disclosed is a combined X-ray fluorescence (XRF) analysis device. According to embodiments, the combined X-ray fluorescence analysis device includes: a ray emission channel including a ray source; an energy dispersive XRF (EDXRF) detection channel including an EDXRF detector, and the EDXRF detector is configured to detect fluorescence at different energies within a certain energy range in fluorescence emitted by an object irradiated by a ray from the ray emission channel; and a wavelength dispersive XRF (WDXRF) detection channel including a WDXRF detector, and the WDXRF detector is configured to detect fluorescence at one or more specific wavelengths in the fluorescence emitted by the object irradiated by the ray from the ray emission channel.
    Type: Application
    Filed: May 4, 2023
    Publication date: February 8, 2024
    Inventors: Xuena ZHANG, Feng HONG, Cuihuan WANG
  • Publication number: 20230236143
    Abstract: An X-ray analysis system is provided with multi-source design and an X-ray analysis method is provided with multi-source design. According to the embodiments, the X-ray analysis system includes a ray source including a plurality of ray generating devices that generate a ray; a detector that detects a signal generated due to an analyzed object being irradiated by the ray from the ray source; and a controller that controls the ray source, so that two or more ray generating devices in the ray source simultaneously generate corresponding rays to irradiate the analyzed object.
    Type: Application
    Filed: January 23, 2023
    Publication date: July 27, 2023
    Inventors: Xuena ZHANG, Feng HONG, Cuihuan WANG
  • Patent number: 10381454
    Abstract: Embodiments of the disclosure generally provide methods of forming a capacitor with high capacitance and low leakage as well as a good interface control for thin film transistor (TFT) applications. In one embodiment, a thin film transistor structure includes a capacitor formed in a thin film transistor device. The capacitor further includes a common electrode disposed on a substrate, a dielectric layer formed on the common electrode and a pixel electrode formed on the dielectric layer. An interface protection layer formed between the common electrode and the dielectric layer, or between the dielectric layer and the pixel electrode. A gate insulating layer fabricated by a high-k material may also be utilized in the thin film transistor structure.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: August 13, 2019
    Assignee: PATTERSON + SHERIDAN LLP
    Inventors: Xuena Zhang, Dong-Kil Yim, Wenqing Dai, Harvey You, Tae Kyung Won, Hsiao-Lin Yang, Wan-Yu Lin, Yun-chu Tsai
  • Patent number: 10134878
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a TFT having a metal oxide layer. The method may include forming a metal oxide layer and treating the metal oxide layer with a fluorine containing gas or plasma. The fluorine treatment of the metal oxide layer helps fill the oxygen vacancies in the metal oxide channel layer, leading to a more stable TFT and preventing a negative threshold voltage in the TFT.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 20, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Hao-Chien Hsu, Dong-Kil Yim, Tae Kyung Won, Xuena Zhang, Won Ho Sung, Rodney Shunleong Lim
  • Patent number: 10012606
    Abstract: Methods and systems for performing relatively high energy X-ray Fluorescence (XRF) measurements and relatively low energy X-ray photoelectron spectroscopy (XPS) measurements over a desired inspection area of a specimen are presented. Combined XPS and XRF measurements of a specimen are achieved with illumination tailored to each respective metrology technique. A high brightness, high energy x-ray illumination source is employed in combination with one or more secondary fluorescence targets. The high energy x-ray illumination source supplies high energy x-ray illumination to a specimen to perform high energy XRF measurements. In addition, the high energy x-ray illumination source supplies high energy x-ray illumination to one or more secondary fluorescence targets. The one or more secondary fluorescence targets absorb some of the high energy x-ray photons and emit x-ray emission lines at a lower energy.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: July 3, 2018
    Assignee: KLA-Tencor Corporation
    Inventors: Michael S. Bakeman, Xuena Zhang
  • Patent number: 9773921
    Abstract: The present disclosure generally relates to an improved large area substrate thin film transistor device, and method of fabrication thereof. More specifically, amorphous and LTPS transistors are formed by first forming an amorphous silicon layer, annealing the amorphous silicon layer to form polycrystalline silicon, depositing a masking layer over a first portion of the polycrystalline silicon layer, implanting a second portion of the polycrystalline silicon layer with an amorphizing species, and removing the masking layer.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 26, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Peter Nunan, Xuena Zhang
  • Publication number: 20170229490
    Abstract: Embodiments of the disclosure generally provide methods of forming a capacitor with high capacitance and low leakage as well as a good interface control for thin film transistor (TFT) applications. In one embodiment, a thin film transistor structure includes a capacitor formed in a thin film transistor device. The capacitor further includes a common electrode disposed on a substrate, a dielectric layer formed on the common electrode and a pixel electrode formed on the dielectric layer. An interface protection layer formed between the common electrode and the dielectric layer, or between the dielectric layer and the pixel electrode. A gate insulating layer fabricated by a high-k material may also be utilized in the thin film transistor structure.
    Type: Application
    Filed: January 20, 2017
    Publication date: August 10, 2017
    Inventors: Xuena ZHANG, Dong-Kil YIM, Wenqing DAI, Harvey YOU, Tae Kyung WON, Hsiao-Lin YANG, Wan-Yu LIN, Yun-chu TSAI
  • Publication number: 20170207327
    Abstract: Embodiments of the present disclosure generally relate to methods for forming a TFT having a metal oxide layer. The method may include forming a metal oxide layer and treating the metal oxide layer with a fluorine containing gas or plasma. The fluorine treatment of the metal oxide layer helps fill the oxygen vacancies in the metal oxide channel layer, leading to a more stable TFT and preventing a negative threshold voltage in the TFT.
    Type: Application
    Filed: November 22, 2016
    Publication date: July 20, 2017
    Inventors: Hao-Chien HSU, Dong-kil YIM, Tae Kyung WON, Xuena ZHANG, Won Ho SUNG, Rodney Shunleong LIM
  • Publication number: 20170125606
    Abstract: The present disclosure generally relates to an improved large area substrate thin film transistor device, and method of fabrication thereof. More specifically, amorphous and LTPS transistors are formed by first forming an amorphous silicon layer, annealing the amorphous silicon layer to form polycrystalline silicon, depositing a masking layer over a first portion of the polycrystalline silicon layer, implanting a second portion of the polycrystalline silicon layer with an amorphizing species, and removing the masking layer.
    Type: Application
    Filed: September 28, 2016
    Publication date: May 4, 2017
    Inventors: Peter NUNAN, Xuena ZHANG
  • Patent number: 9634039
    Abstract: Embodiments of the present disclosure generally relate to methods and devices for use of low temperature polysilicon (LTPS) thin film transistors in liquid crystal display (LCD) and organic light-emitting diode (OLED) displays.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: April 25, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Soo Young Choi, Tae Kyung Won, Dong-Kil Yim, Yi Cui, Xuena Zhang
  • Publication number: 20170012064
    Abstract: Embodiments of the present disclosure generally relate to methods and devices for use of low temperature polysilicon (LTPS) thin film transistors in liquid crystal display (LCD) and organic light-emitting diode (OLED) displays.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 12, 2017
    Inventors: Soo Young CHOI, Tae Kyung WON, Dong-Kil YIM, Yi CUI, Xuena ZHANG
  • Patent number: 8975134
    Abstract: A doped fullerene-based conductive material can be used as an electrode, which can contact a dielectric such as a high k dielectric. By aligning the dielectric with the band gap of the doped fullerene-based electrode, e.g., the conduction band minimum of the dielectric falls into one of the band gaps of the doped fullerene-based material, thermionic leakage through the dielectric can be reduced, since the excited electrons or holes in the electrode would need higher thermal excitation energy to overcome the band gap before passing through the dielectric layer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Intermolecular, Inc.
    Inventors: Sergey Barabash, Dipankar Pramanik, Xuena Zhang
  • Patent number: 8871601
    Abstract: Embodiments of the present invention include diffusion barriers, methods for forming the barriers, and semiconductor devices utilizing the barriers. The diffusion barrier comprises a self-assembled monolayer (SAM) on a semiconductor substrate, where one surface of the SAM is disposed in contact with and covalently bonded to the semiconductor substrate, and one surface of the monolayer is disposed in contact with and covalently bonded to a metal layer. In some embodiments, the barrier comprises an assembly of one or more monomeric subunits of the following structure: Si—(CnHy)-(LM)m where n is from 1 to 20, y is from 2n?2 to 2n, m is 1 to 3, L is a Group VI element, and M is a metal, such as copper. In some embodiments, (CnHy) can be branched, crosslinked, or cyclic.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Xuena Zhang, Mankoo Lee, Dipankar Pramanik
  • Patent number: 8859093
    Abstract: Embodiments of the present invention include low emissivity (low-E) coatings and methods for forming the coatings. The low-E coating comprises a self-assembled monolayer (SAM) on a glass substrate, where one surface of the SAM is disposed in contact with and covalently bonded to the glass substrate, and one surface of the monolayer is disposed in contact with and covalently bonded to a metal layer. In some embodiments, the low-E coating comprises an assembly of one or more monomeric subunits of the following structure: Si—(CnHy)-(LM)m where n is from 1 to 20, y is from 2n?2 to 2n, m is 1 to 3, L is a Group VI element, and M is a metal, such as silver. In some embodiments, (CnHy) can be branched, crosslinked, or cyclic. The coating can further comprise an antireflection coating on the metal layer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 14, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Xuena Zhang, Dipankar Pramanik
  • Publication number: 20140262749
    Abstract: Combinatorial processing of a substrate comprising site-isolated sputter deposition and site-isolated plasma processing can be performed in a same process chamber. The process chamber, configured to perform sputter deposition and plasma processing, comprises a grounded shield having at least an aperture disposed above the substrate to form a small, dark space gap to reduce or eliminate any plasma formation within the gap. The plasma processing may include plasma etching or plasma surface treatment.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Ashish Bodke, Olov Karlsson, Kevin Kashefi, Chi-I Lang, Dipankar Pramanik, Hong Sheng Yang, Xuena Zhang
  • Publication number: 20140268377
    Abstract: Systems and methods for improving the performance of one way mirror applications are disclosed. Methods consistent with the present disclosure include introducing a glass substrate into a processing chamber. The processing chamber comprises a sputter target assembly disposed over the substrate. Next, depositing metal silicide material within a plurality of site-isolated regions on the substrate to form a metal silicide coating within each region. Notably, each metal silicide coating has a thickness between 0.001 and 0.5 microns. Finally, evaluating results of the metal silicide coating formed within the plurality of site-isolated regions.
    Type: Application
    Filed: December 12, 2013
    Publication date: September 18, 2014
    Applicant: Intermolecular, Inc.
    Inventors: Xuena Zhang, Dipankar Pramanik
  • Publication number: 20140264224
    Abstract: Resistive random access memory (ReRAM) cells can include an embedded metal nanoparticle switching layer and electrodes. The metal nanoparticles can be formed using a micelle solution. The generation of the nanoparticles can be controlled in multiple dimensions to achieve desirable performance characteristics, such as low power consumption as well as low and consistent switching currents.
    Type: Application
    Filed: August 16, 2013
    Publication date: September 18, 2014
    Applicant: Intermolecular, Inc.
    Inventors: Xuena Zhang, Sergey Barabash, Charlene Chen, Dipankar Pramanik
  • Patent number: 8835310
    Abstract: Electrodes, which contain molybdenum dioxide (MoO2) can be used in electronic components, such as memory or logic devices. The molybdenum-dioxide containing electrodes can also have little or no molybdenum element, together with a portion of molybdenum oxide, e.g., MoOx with x between 2 and 3. The molybdenum oxide can be present as molybdenum trioxide MoO3, or in Magneli phases, such as Mo4O11, MO8O23, or Mo9O26. The molybdenum-dioxide containing electrodes can be formed by annealing a multilayer including a layer of molybdenum and a layer of molybdenum oxide. The oxygen content of the multilayer can be configured to completely, or substantially completely, react with molybdenum to form molybdenum dioxide, together with leaving a small excess amount of molybdenum oxide MoOx with x>2.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 16, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Sergey Barabash, Dipankar Pramanik, Xuena Zhang
  • Publication number: 20140183737
    Abstract: Embodiments of the present invention include diffusion barriers, methods for forming the barriers, and semiconductor devices utilizing the barriers. The diffusion barrier comprises a self-assembled monolayer (SAM) on a semiconductor substrate, where one surface of the SAM is disposed in contact with and covalently bonded to the semiconductor substrate, and one surface of the monolayer is disposed in contact with and covalently bonded to a metal layer. In some embodiments, the barrier comprises an assembly of one or more monomeric subunits of the following structure: Si—(CnHy) (LM), where n is from 1 to 20, y is from 2n?2 to 2n, m is 1 to 3, L is a Group VI element, and M is a metal, such as copper. In some embodiments, (CnHy) can be branched, crosslinked, or cyclic.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Xuena Zhang, Mankoo Lee, Dipankar Pramanik
  • Publication number: 20140183664
    Abstract: A doped fullerene-based conductive material can be used as an electrode, which can contact a dielectric such as a high k dielectric. By aligning the dielectric with the band gap of the doped fullerene-based electrode, e.g., the conduction band minimum of the dielectric falls into one of the band gaps of the doped fullerene-based material, thermionic leakage through the dielectric can be reduced, since the excited electrons or holes in the electrode would need higher thermal excitation energy to overcome the band gap before passing through the dielectric layer.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Sergey Barabash, Dipankar Pramanik, Xuena Zhang