Patents by Inventor Tze-Chiang Chen

Tze-Chiang Chen 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: 20240120315
    Abstract: A semiconductor package includes a first semiconductor die and a second semiconductor die disposed laterally adjacent one another. The semiconductor package includes a semiconductor bridge overlapping a first corner of the first semiconductor die and a second corner of the second semiconductor die. The semiconductor bridge electrically couples the first semiconductor to the second semiconductor die. The semiconductor package includes a third semiconductor die and a fourth semiconductor die electrically coupled to the first semiconductor die and the second semiconductor die, respectively. The semiconductor bridge is interposed between the third semiconductor die and the fourth semiconductor die.
    Type: Application
    Filed: February 15, 2023
    Publication date: April 11, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Fa Chen, Tze-Chiang Huang, Yun-Han Lee, Lee-Chung Lu
  • Publication number: 20230147329
    Abstract: Double gate/gate-all-around and variable threshold voltage MOSFET devices and techniques for fabrication thereof in a single backside process are provided. In one aspect, a MOSFET device includes: a channel in between source/drain regions; at least one first gate disposed on a first side of the channel at a frontside of the MOSFET device; gate spacers offsetting the source/drain regions from the at least one first gate; and at least one second gate disposed on a second side of the channel directly opposite the at least one first gate at a backside of the MOSFET device. At least one gate contact can be present in direct contact with the at least one first gate and the at least one second gate. A method of forming a MOSFET device is also provided.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 11, 2023
    Inventors: Sung Dae Suk, Devendra K. Sadana, Tze-Chiang Chen
  • Publication number: 20230090017
    Abstract: A semiconductor structure comprises a semiconductor substrate including a first silicon substrate component having a first crystalline orientation and a second silicon substrate component over the first silicon substrate and having a second crystalline orientation different from the first crystalline orientation. The semiconductor substrate defines a trench extending through the second silicon substrate component and at least partially within the first silicon substrate component. A gallium nitride structure is disposed within the trench of the semiconductor substrate.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 23, 2023
    Inventors: Effendi Leobandung, Tze-Chiang Chen
  • Patent number: 11585871
    Abstract: A system for and methods of semiconductor testing and characterization are disclosed. The system includes a parallel dipole line (PDL) system for applying a magnetic field to a sample in a measurement chamber and electrical equipment for testing the sample. The testing includes applying a first light exposure to the sample with the PDL system set to zero magnetic field and monitoring longitudinal resistance (Rxx) of the sample as intensity of the first light exposure varies. A second light exposure is applied with the PDL system set to maximum magnetic field, and transverse magnetoresistance (RB+) is monitored as light intensity varies. A third light exposure is applied with the PDL system set to minimum magnetic field, and transverse magnetoresistance (RB?) is monitored as light intensity varies. The characterization includes carrying out a photo-Hall analysis based on data from the testing.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Oki Gunawan, Devendra K. Sadana, Douglas Bishop, Tze-Chiang Chen
  • Publication number: 20210184113
    Abstract: A cross-point memory semiconductor structure and a method of creating the same are provided. There is a first electrode layer on top of the substrate. A conductive oxide diffusion barrier layer is on top of the first electrode. A polycrystalline silicon diode is on top of the conductive oxide diffusion barrier. A phase change material (PCM) layer is on top of the polycrystalline silicon diode. A second electrode is on top of the PCM layer.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 17, 2021
    Inventors: Ning Li, Fabio Carta, Devendra K. Sadana, Tze-Chiang Chen
  • Patent number: 10756230
    Abstract: A photovoltaic device includes a crystalline substrate having a first dopant conductivity, an interdigitated back contact and a front surface field structure. The front surface field structure includes a crystalline layer formed on the substrate and a noncrystalline layer formed on the crystalline layer. The crystalline layer and the noncrystalline layer are doped with dopants having an opposite dopant conductivity from that of the substrate. Methods are also disclosed.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 25, 2020
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
  • Patent number: 10727367
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: July 28, 2020
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Augustin J. Hong, Jeehwan Kim, Devendra K. Sadana
  • Patent number: 10672932
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 2, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tze-Chiang Chen, Augustin J. Hong, Jeehwan Kim, Devendra K. Sadana
  • Patent number: 10600891
    Abstract: A method of forming a III-V semiconductor vertical fin is provided. The method includes forming a fin mandrel on a substrate, forming a spacer layer on the substrate surrounding the fin mandrel, forming a wetting layer on each of the sidewalls of the fin mandrel, forming a fin layer on each of the wetting layers, removing the fin mandrel, removing the wetting layer on each of the fin layers, and forming a fin layer regrowth on each of the sidewalls of the fin layers exposed by removing the wetting layer from each of the fin layers.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 24, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tze-Chiang Chen, Cheng-Wei Cheng, Sanghoon Lee, Effendi Leobandung
  • Patent number: 10476016
    Abstract: Device architectures based on trapping and de-trapping holes or electrons and/or recombination of both types of carriers are obtained by carrier trapping either in near-interface deep ambipolar states or in quantum wells/dots, either serving as ambipolar traps in semiconductor layers or in gate dielectric/barrier layers. In either case, the potential barrier for trapping is small and retention is provided by carrier confinement in the deep trap states and/or quantum wells/dots. The device architectures are usable as three terminal or two terminal devices.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 12, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Tze-Chiang Chen, Kailash Gopalakrishnan, Bahman Hekmatshoartabari
  • Publication number: 20190326463
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: TZE-CHIANG CHEN, AUGUSTIN J. HONG, JEEHWAN KIM, DEVENDRA K. SADANA
  • Patent number: 10403779
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 3, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Augustin J. Hong, Jeehwan Kim, Devendra K. Sadana
  • Patent number: 10388815
    Abstract: A photovoltaic device and method include a crystalline substrate and an emitter contact portion formed in contact with the substrate. A back-surface-field junction includes a homogeneous junction layer formed in contact with the crystalline substrate and having a same conductivity type and a higher active doping density than that of the substrate. The homogeneous junction layer includes a thickness less than a diffusion length of minority carriers in the homogeneous junction layer. A passivation layer is formed in contact with the homogeneous junction layer opposite the substrate, which is either undoped or has the same conductivity type as that of the substrate.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: August 20, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
  • Publication number: 20190237565
    Abstract: A method of forming a III-V semiconductor vertical fin is provided. The method includes forming a fin mandrel on a substrate, forming a spacer layer on the substrate surrounding the fin mandrel, forming a wetting layer on each of the sidewalls of the fin mandrel, forming a fin layer on each of the wetting layers, removing the fin mandrel, removing the wetting layer on each of the fin layers, and forming a fin layer regrowth on each of the sidewalls of the fin layers exposed by removing the wetting layer from each of the fin layers.
    Type: Application
    Filed: March 28, 2019
    Publication date: August 1, 2019
    Inventors: Tze-Chiang Chen, Cheng-Wei Cheng, Sanghoon Lee, Effendi Leobandung
  • Publication number: 20190214519
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: TZE-CHIANG CHEN, AUGUSTIN J. HONG, JEEHWAN KIM, DEVENDRA K. SADANA
  • Patent number: 10319872
    Abstract: A method for forming a photovoltaic device includes providing a substrate. A layer is deposited to form one or more layers of a photovoltaic stack on the substrate. The depositing of the amorphous layer includes performing a high power flash deposition for depositing a first portion of the layer. A low power deposition is performed for depositing a second portion of the layer.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: June 11, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tze-Chiang Chen, Augustin J. Hong, Jeehwan Kim, Devendra K. Sadana
  • Publication number: 20190165144
    Abstract: A method of forming a III-V semiconductor vertical fin is provided. The method includes forming a fin mandrel on a substrate, forming a spacer layer on the substrate surrounding the fin mandrel, forming a wetting layer on each of the sidewalls of the fin mandrel, forming a fin layer on each of the wetting layers, removing the fin mandrel, removing the wetting layer on each of the fin layers, and forming a fin layer regrowth on each of the sidewalls of the fin layers exposed by removing the wetting layer from each of the fin layers.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Inventors: Tze-Chiang Chen, Cheng-Wei Cheng, Sanghoon Lee, Effendi Leobandung
  • Patent number: 10304947
    Abstract: A method of forming a III-V semiconductor vertical fin is provided. The method includes forming a fin mandrel on a substrate, forming a spacer layer on the substrate surrounding the fin mandrel, forming a wetting layer on each of the sidewalls of the fin mandrel, forming a fin layer on each of the wetting layers, removing the fin mandrel, removing the wetting layer on each of the fin layers, and forming a fin layer regrowth on each of the sidewalls of the fin layers exposed by removing the wetting layer from each of the fin layers.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 28, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Cheng-Wei Cheng, Sanghoon Lee, Effendi Leobandung
  • Publication number: 20190036053
    Abstract: Device architectures based on trapping and de-trapping holes or electrons and/or recombination of both types of carriers are obtained by carrier trapping either in near-interface deep ambipolar states or in quantum wells/dots, either serving as ambipolar traps in semiconductor layers or in gate dielectric/barrier layers. In either case, the potential barrier for trapping is small and retention is provided by carrier confinement in the deep trap states and/or quantum wells/dots. The device architectures are usable as three terminal or two terminal devices.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 31, 2019
    Inventors: Ali Afzali-Ardakani, Tze-Chiang Chen, Kailash Gopalakrishnan, Bahman Hekmatshoartabari
  • Patent number: 10128452
    Abstract: Junction field-effect transistors including inorganic channels and organic gate junctions are used in some applications for forming high resolution active matrix displays. Arrays of such junction field-effect transistors are electrically connected to thin film switching transistors and provide high drive currents for passive devices such as organic light emitting diodes.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: November 13, 2018
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Tze-Chiang Chen, Bahman Hekmatshoartabari, Ghavam G. Shahidi