Patents by Inventor An-Hwa Chang

An-Hwa Chang 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: 20240170953
    Abstract: An electrostatic discharge protection circuit is provided. The electrostatic discharge protection circuit includes first, second, and third transistors and a discharge circuit. The first transistor has a first gate, a first drain coupled to the bonding pad, and a first source coupled to a first node. The second transistor has a second gate coupled to a power terminal, a second drain coupled to the first gate, and a second source coupled to a ground. The third transistor has a third gate coupled to the power terminal, a third drain coupled to the first node, and a third source coupled to the ground. The discharge circuit is controlled by a driving voltage at the first node. In response to an electrostatic discharge event occurring on the bonding pad, the discharge circuit provides a discharge path between the bonding pad and the ground according to the driving voltage.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Chih-Hsuan LIN, Shao-Chang HUANG, Wen-Hsin LIN, Yeh-Ning JOU, Hwa-Chyi CHIOU, Chun-Chih CHEN
  • Patent number: 11988907
    Abstract: An electric field-controlled refractive index tunable device includes a phase change correlated transition metal oxide layer, and E-field responsive charge dopants. The E-field responsive charge dopants either accumulate in the phase change correlated transition metal oxide layer or are depleted from the phase change correlated transition metal oxide layer in response to an E-field applied to the phase change correlated transition metal oxide layer.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: May 21, 2024
    Assignee: HRL LABORATORIES, LLC
    Inventors: Kyung-Ah Son, Jeong-Sun Moon, Hwa Chang Seo, Richard M. Kremer, Ryan G. Quarfoth
  • Publication number: 20240136316
    Abstract: A semiconductor package includes a conductive pillar and a solder. The conductive pillar has a first sidewall and a second sidewall opposite to the first sidewall, wherein a height of the first sidewall is greater than a height of the second sidewall. The solder is disposed on and in direct contact with the conductive pillar, wherein the solder is hanging over the first sidewall and the second sidewall of conductive pillar.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chiang-Jui Chu, Ching-Wen Hsiao, Hao-Chun Liu, Ming-Da Cheng, Young-Hwa Wu, Tao-Sheng Chang
  • Publication number: 20240136429
    Abstract: A transition metal dichalcogenide (TMD) transistor includes a substrate, an n-type two-dimensional (2D) TMD layer, a metal source electrode, a metal drain electrode, and a gate dielectric. The substrate has a top portion that is an insulating layer, and the n-type 2D TMD layer is on the insulating layer. The metal source electrode, the metal drain electrode, and the gate dielectric are on the n-type 2D TMD layer. The metal gate electrode is on top of the gate dielectric and is between the metal source electrode and the metal drain electrode.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 25, 2024
    Applicant: HRL Laboratories, LLC
    Inventors: Kyung-Ah SON, Jeong-Sun MOON, Hwa Chang SEO
  • Patent number: 11961775
    Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: April 16, 2024
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
  • Publication number: 20240099354
    Abstract: A system for manufacturing edible food products according to the present disclosure includes a first food ingredient supply apparatus configured to separate a single sheet of a first food ingredient from a first food ingredient stack including a plurality of stacked first food ingredients and supply the single sheet of first food ingredient, a second food ingredient supply apparatus configured to separate a single sheet of a second food ingredient from a second food ingredient stack including a plurality of stacked second food ingredients and supply the single sheet of second food ingredient, and a pressing device configured to form an edible food product by pressing a semi-finished product formed by seating the supplied single sheet of the first food ingredient on the supplied single sheet of the second food ingredient.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 28, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Duk Jin CHANG, Min Soo LIM, Seung Yong KIM, Yong Ho JEON, Sang Oh KIM, Myoung Il KWAK, Jong Hwa LEE
  • Publication number: 20240101369
    Abstract: An apparatus for supplying food ingredients according to the present disclosure includes a food ingredient lifting part configured to separate and move upward a food ingredient stack from a food ingredient cassette on which food ingredients including a plurality of stacked food ingredients are seated, a food ingredient separation part configured to suck and move upward a single sheet of a food ingredient from the food ingredient stack moved upward by the food ingredient lifting part, and a horizontal movement part configured to transfer forward the single sheet of the food ingredient moved upward by the food ingredient separation part.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 28, 2024
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Duk Jin CHANG, Min Soo LIM, Seung Yong KIM, Yong Ho JEON, Sang Oh KIM, Myoung Il KWAK, Jong Hwa LEE
  • Publication number: 20240083059
    Abstract: A cutting apparatus according to the present disclosure includes a cutting roller including a cutting body having a cylindrical shape and configured to rotate about an axis defined in a leftward/rightward direction, and cutting blades protruding outward in a radial direction of the cutting body further than a surface of the cutting body to cut an edible food product provided in a forward/rearward direction, and a cutting base part disposed at a position facing the cutting roller based on the edible food product to support the edible food product to be cut by the cutting roller.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 14, 2024
    Applicants: CJ CHEILJEDANG CORPORATION, CJ SEAFOOD CORPORATION, GREEN TECHNOLOGY CO., LTD.
    Inventors: Duk Jin CHANG, Min Soo LIM, Seung Yong KIM, Yong Ho JEON, Sang Oh KIM, Myoung Il KWAK, Jong Hwa LEE
  • Patent number: 11921089
    Abstract: According to the embodiments disclosed herein, in a press-fitting test for measuring physical properties of a test object by pressing an indenter against the test object and measuring the load and displacement, the measured displacement value is corrected in real time in consideration of the amount of deformation according to the load of the load cell, and thus an accurate load-displacement curve can be derived, even when the amount of deformation of the load cell is included in a measured value of a displacement sensor.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: March 5, 2024
    Assignee: FRONTICS, INC.
    Inventors: Hee Kwang Chang, Kwang Ho Kim, Jeong Hwa Hong
  • Patent number: 11808937
    Abstract: A method of providing a spatial light modulator comprising: providing a substrate; providing a first phase change material cell on the substrate, the first phase change material cell comprising: a first electrical heater on the substrate; a first optical reflector layer on the electrical heater; and a first phase change material layer on the optical reflector layer; and providing at least a second phase change material cell on the substrate, the second phase change material cell comprising: a second electrical heater on the substrate; a second optical reflector layer on the second electrical heater; a second phase change material layer on the second optical reflector layer; and providing a light absorber layer between the first phase change material cell and the second phase change material cell.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: November 7, 2023
    Assignee: HRL LABORATORIES, LLC
    Inventors: Jeong-Sun Moon, Hwa Chang Seo, Kyung-Ah Son, Kangmu Lee
  • Patent number: 11788183
    Abstract: A process enables growing thick stoichiometric crystalline and preferably IR-transparent optical PCMO material on Si and other substrates. Sputter deposition is carried out in oxygen-free inert gas (e.g., Ar) environment, which helps to prevent decomposition of the PCMO material over the substrate. In the disclosed process, there is no need to add a seed layer prior to PCMO deposition. Moreover, no post-deposition annealing is needed in a high-temperature and high-pressure oxygen furnace, but an anneal provides certain additional benefits in terms of improved transparency at IR wavelengths. Over a long deposition time for a thick PCMO film on the high temperature (?450° C.) substrates, the PCMO deposition is made repeated cycles of deposition of the PCMO material at the high temperature, each deposition cycle being followed by cooling the PCMO-deposited substrate to a substantially lower temperature (<50° C.).
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: October 17, 2023
    Assignee: HRL LABORATORIES, LLC
    Inventors: Kyung-Ah Son, Jeong-Sun Moon, Hwa Chang Seo, Richard M. Kremer, Ryan G. Quarfoth, Jack A. Crowell, Mariano J. Taboada, Joshua M. Doria, Terry B. Welch
  • Publication number: 20230070922
    Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 9, 2023
    Applicant: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
  • Patent number: 11569367
    Abstract: A field effect transistor includes a substrate, a passivation layer on the substrate forming a passivated substrate, wherein the passivation layer is inert to XeF2, and a graphene lateral heterostructure field effect transistor (LHFET) on the passivated substrate.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: January 31, 2023
    Assignee: HRL LABORATORIES, LLC
    Inventors: Kyung-Ah Son, Jeong-Sun Moon, Hwa Chang Seo
  • Patent number: 11549072
    Abstract: The invention relates to an improved system and method for relief of hot, high pressure, fouling fluid from the 1st Stage Reactor and the ISS in case of an unintended overpressure situation while allowing the quick establishing of normal fluid flow path once the overpressure situation has been corrected. This allows for rapid cooling of all subsequent reactor stages while minimizing VGO slop generation that needs reprocessing.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: January 10, 2023
    Assignee: Axens
    Inventors: Trushit Oza, Yu-Hwa Chang
  • Publication number: 20220389561
    Abstract: A process enables growing thick stoichiometric crystalline and preferably IR-transparent optical PCMO material on Si and other substrates. Sputter deposition is carried out in oxygen-free inert gas (e.g., Ar) environment, which helps to prevent decomposition of the PCMO material over the substrate. In the disclosed process, there is no need to add a seed layer prior to PCMO deposition. Moreover, no post-deposition annealing is needed in a high-temperature and high-pressure oxygen furnace, but an anneal provides certain additional benefits in terms of improved transparency at IR wavelengths. Over a long deposition time for a thick PCMO film on the high temperature (?450° C.) substrates, the PCMO deposition is made repeated cycles of deposition of the PCMO material at the high temperature, each deposition cycle being followed by cooling the PCMO-deposited substrate to a substantially lower temperature (<50° C.).
    Type: Application
    Filed: August 18, 2022
    Publication date: December 8, 2022
    Applicant: HRL Laboratories, LLC
    Inventors: Kyung-Ah SON, Jeong-Sun MOON, Hwa Chang SEO, Richard M. KREMER, Ryan G. QUARFOTH, Jack A. CROWELL, Mariano J. TABOADA, Joshua M. DORIA, Terry B. WELCH
  • Patent number: 11495505
    Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 8, 2022
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
  • Publication number: 20220352129
    Abstract: In one example, a semiconductor structure comprises a frontside substrate comprising a conductive structure, a backside substrate comprising a base substrate and a cavity substrate contacting the base substrate, wherein the backside substrate is over a top side of the frontside substrate and has a cavity and an internal interconnect contacting the frontside substrate, and a first electronic component over the top side of the frontside substrate and in the cavity. The first electronic component is coupled with the conductive structure, and an encapsulant is in the cavity and on the top side of the frontside substrate, contacting a lateral side of the first electronic component, a lateral side of the cavity, and a lateral side of the internal interconnect. Other examples and related methods are also disclosed herein.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 3, 2022
    Applicant: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gi Tae Lim, Jae Yun Kim, Myung Jae Choi, Min Hwa Chang, Mi Kyoung Choi
  • Patent number: 11398455
    Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The second internal interconnect can be coupled to the second electronic device and the first electronic device. The encapsulant can cover the substrate inner sidewall and the device stack, and can fill the cavity. Other examples and related methods are disclosed herein.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 26, 2022
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee
  • Publication number: 20220202277
    Abstract: A medical device, system, and methods of using the medical device and system are provided. Embodiments of the disclosure include a medical apparatus including a bendable body having a driving wire configured in the bendable body. A distal end of a break-out wire is attached to a proximal end of the driving wire where a distal guide tube guiding the driving wire, the distal tube ending before the break-out wire with a space. A resilient element abutting the driving wire along at least a portion of a longitudinal direction of the driving wire, and expands or contracts along the longitudinal direction of the driving wire. An actuator retracts and advances the driving wire via the break-out wire and maneuvers the bendable body, wherein the resilient element stays within the space between a proximal end of the distal guide tube and the distal end of the break-out wire.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 30, 2022
    Inventors: Showna Hsu-Hwa Chang, Takahisa Kato
  • Patent number: 11359518
    Abstract: A combined cycle power plant is capable of improving power output and power generation efficiency by cooling intake air supplied to a gas turbine. The plant includes a gas turbine power generation system, an operating fluid power generation system, and a cooling system. The gas turbine power generation system includes an air compressor for compressing air supplied through an air incoming path, a gas turbine for generating rotary power by burning a mixture of fuel and the air compressed by the air compressor, and a first generator for generating electricity by using the rotary power of the gas turbine. The operating fluid power generation system heats an operating fluid by using combustion gas discharged from the gas turbine and generates electricity using the heated operating fluid. The cooling system cools air supplied from the air compressor by supplying the operating fluid to an upstream side of the air compressor.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: June 14, 2022
    Inventors: Jun Tae Jang, Sang Hyeun Kim, Hwa Chang Sung, Gon Joo Lee, Song Hun Cha