Patents by Inventor Hung-Chih Chang

Hung-Chih 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).

  • Patent number: 10879404
    Abstract: A device includes a semiconductor substrate, a buried oxide over the substrate, a first transition metal dichalcogenide layer over the buried oxide, an insulator over the first transition metal dichalcogenide layer, and a second transition metal dichalcogenide layer over the insulator. A gate dielectric is over the second transition metal dichalcogenide layer, and a gate is over the gate dielectric.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: December 29, 2020
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., National Taiwan University
    Inventors: Pin-Shiang Chen, Hung-Chih Chang, Chee-Wee Liu, Samuel C. Pan
  • Publication number: 20200145403
    Abstract: An authentication system includes a storage device, an authentication server, a work server, and a user device. The authentication server communicates with the storage device. The work server communicates with the authentication server. The user device communicates with the authentication server and the work server. The user device logins in the authentication server and obtains an authentication token from the authentication server. The authentication server obtains an information from the storage device and transmits the information to the work server. The user device transmits the authentication token to the authentication server through the work server to perform authentication. The work server obtains an authentication result from the authentication server. When the authentication result is correct, the work server performs an operation request of the user device for the information.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Inventors: Hung-Chih Chang, Mu-Jen Ting, Po-Shen Chiu
  • Patent number: 10593046
    Abstract: An object counting method having route distribution property is applied to an image processing device. The object counting method includes steps of recording an initial position datum and a final position datum of any object moving within an image frame, setting at least one detection line inside the image frame, determining whether a connection line between the initial position datum and the final position datum moves across the detection line, and drawing an object distribution diagram by relation between an amount of the object moving across the detection line and its detective period.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: March 17, 2020
    Assignee: VIVOTEK INC.
    Inventors: Hung-Chih Chang, Shin-Jei Tsung, Chinn-Rong Chern
  • Publication number: 20190319508
    Abstract: The present disclosure provides an electrical connection cap of a stator. The electrical connection cap includes a housing and at least one connection sheet. The housing has a first opening and a second opening. The at least one connection sheet is embedded within the housing and has a first receiving part positioned in the first opening, and a second receiving part positioned in the second opening.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 17, 2019
    Inventors: Hung-Chih CHANG, Chang-Si Yang
  • Publication number: 20190252554
    Abstract: A device includes a semiconductor substrate, a buried oxide over the substrate, a first transition metal dichalcogenide layer over the buried oxide, an insulator over the first transition metal dichalcogenide layer, and a second transition metal dichalcogenide layer over the insulator. A gate dielectric is over the second transition metal dichalcogenide layer, and a gate is over the gate dielectric.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 15, 2019
    Inventors: Pin-Shiang Chen, Hung-Chih Chang, Chee Wee Liu, Samuel C. Pan
  • Patent number: 10269981
    Abstract: A device includes a semiconductor substrate, a buried oxide over the substrate, a first transition metal dichalcogenide layer over the buried oxide, an insulator over the first transition metal dichalcogenide layer, and a second transition metal dichalcogenide layer over the insulator. A gate dielectric is over the second transition metal dichalcogenide layer, and a gate is over the gate dielectric.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: April 23, 2019
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., National Taiwan University
    Inventors: Pin-Shiang Chen, Hung-Chih Chang, Chee-Wee Liu, Samuel C. Pan
  • Publication number: 20180276829
    Abstract: An object counting method having route distribution property is applied to an image processing device. The object counting method includes steps of recording an initial position datum and a final position datum of any object moving within an image frame, setting at least one detection line inside the image frame, determining whether a connection line between the initial position datum and the final position datum moves across the detection line, and drawing an object distribution diagram by relation between an amount of the object moving across the detection line and its detective period.
    Type: Application
    Filed: March 26, 2018
    Publication date: September 27, 2018
    Inventors: Hung-Chih Chang, Shin-Jei Tsung, Chinn-Rong Chern
  • Patent number: 9865944
    Abstract: An output terminal for a vehicle AC generator is provided. The output terminal comprises: a bolt and a cylinder nut. The bolt has outer threads and is inserted through a through hole of a rectifier unit. The cylinder nut has inner threads, which engage with the outer threads of the bolt so that the cylinder nut surrounds the outer circumference of the bolt and fixes the bolt to the rectifier unit. The cylinder nut has a recess in its outer circumference. An insulating sleeve may be provided on the output terminal. The insulating sleeve has at least an internal protrusion for being received in and engaged with the recess of the cylinder nut.
    Type: Grant
    Filed: March 12, 2017
    Date of Patent: January 9, 2018
    Assignee: Victory Industrial Corporation
    Inventors: Charles Jack Chen, Hung-Chih Chang, Chun-Yuan Wang, Ping-Feng Tsai
  • Publication number: 20170271961
    Abstract: The present invention relates to a rectifier unit of an AC generator for a vehicle. The rectifier unit comprises: a connection unit, a positive cooling fin and a negative cooling fin. The positive cooling fin is coupled to a first portion of the connection unit. The negative cooling fin comprises two separate negative cooling members. Each of the two negative cooling members is coupled to a second portion of the connection unit. The first portion of the connection unit and the second portion of the connection unit are of a different height. The connection unit is disposed above the positive cooling fin, and the positive cooling fin is disposed above the negative cooling fin.
    Type: Application
    Filed: March 12, 2017
    Publication date: September 21, 2017
    Inventors: Charles Jack CHEN, Hung-Chih CHANG, Chun-Yuan WANG, Ping-Feng TSAI
  • Publication number: 20170271790
    Abstract: An output terminal for a vehicle AC generator is provided. The output terminal comprises: a bolt and a cylinder nut. The bolt has outer threads and is inserted through a through hole of a rectifier unit. The cylinder nut has inner threads, which engage with the outer threads of the bolt so that the cylinder nut surrounds the outer circumference of the bolt and fixes the bolt to the rectifier unit. The cylinder nut has a recess in its outer circumference. An insulating sleeve may be provided on the output terminal. The insulating sleeve has at least an internal protrusion for being received in and engaged with the recess of the cylinder nut.
    Type: Application
    Filed: March 12, 2017
    Publication date: September 21, 2017
    Inventors: Charles Jack CHEN, Hung-Chih CHANG, Chun-Yuan WANG, Ping-Feng TSAI
  • Patent number: 9709153
    Abstract: The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: July 18, 2017
    Assignee: Victory Industrial Corporation
    Inventors: Hung-Chih Chang, Szu-En Liu
  • Patent number: 9691810
    Abstract: An image sensor includes a plurality of photodiodes arranged in an array and disposed in a semiconductor material with pinning wells disposed between individual photodiodes in the plurality of photodiodes. The image sensor also includes a microlens layer. The microlens layer is disposed proximate to the semiconductor material and is optically aligned with the plurality of photodiodes. A spacer layer disposed between the semiconductor material and the microlens layer. The spacer layer has a concave cross-sectional profile across the array, and the microlens layer is conformal with the concave cross-sectional profile of the spacer layer.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 27, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Yuanwei Zheng, Gang Chen, Duli Mao, Dyson Tai, Arvind Kumar, Hung Chih Chang, Chih-Wei Hsiung
  • Publication number: 20170179189
    Abstract: An image sensor includes a plurality of photodiodes arranged in an array and disposed in a semiconductor material with pinning wells disposed between individual photodiodes in the plurality of photodiodes. The image sensor also includes a microlens layer. The microlens layer is disposed proximate to the semiconductor material and is optically aligned with the plurality of photodiodes. A spacer layer disposed between the semiconductor material and the microlens layer. The spacer layer has a concave cross-sectional profile across the array, and the microlens layer is conformal with the concave cross-sectional profile of the spacer layer.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Yuanwei Zheng, Gang Chen, Duli Mao, Dyson Tai, Arvind Kumar, Hung Chih Chang, Chih-Wei Hsiung
  • Patent number: 9679961
    Abstract: A device includes a source region, a drain region, and a wurtzite semiconductor between the source region and the drain region. A source-drain direction is parallel to a [01-10] direction or a [?2110] direction of the wurtzite semiconductor. The device further includes a gate dielectric over the wurtzite semiconductor, and a gate electrode over the gate dielectric.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 13, 2017
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., National Taiwan University
    Inventors: Hung-Chih Chang, Pin-Shiang Chen, Chee-Wee Liu, Samuel C. Pan
  • Patent number: 9660056
    Abstract: A semiconductor device and a method of manufacture are provided. A substrate has a dielectric layer formed thereon. A three-dimensional feature, such as a trench or a fin, is formed in the dielectric layer. A two-dimensional layer, such as a layer (or multilayer) of graphene, transition metal dichalcogenides (TMDs), or boron nitride (BN), is formed over sidewalls of the feature. The two-dimensional layer may also extend along horizontal surfaces, such as along a bottom of the trench or along horizontal surfaces of the dielectric layer extending away from the three-dimensional feature. A gate dielectric layer is formed over the two-dimensional layer and a gate electrode is formed over the gate dielectric layer. Source/drain contacts are electrically coupled to the two-dimensional layer on opposing sides of the gate electrode.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: May 23, 2017
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., National Taiwan University
    Inventors: Hung-Chih Chang, Pin-Shiang Chen, Chee-Wee Liu
  • Patent number: 9646994
    Abstract: Semiconductor devices and methods of manufacture thereof are disclosed. In some embodiments, a semiconductor device includes a first fin field effect transistor (FinFET) disposed over a substrate, and a second FinFET device disposed over the first FinFET. A junction isolation material is disposed between a source of the first FinFET and a source of the second FinFET.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 9, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chee-Wee Liu, Hung-Chih Chang, Cheng-Yi Peng, Chih-Sheng Chang
  • Publication number: 20170074384
    Abstract: The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley.
    Type: Application
    Filed: August 21, 2016
    Publication date: March 16, 2017
    Inventors: Hung-Chih CHANG, Szu-En Liu
  • Patent number: 9559168
    Abstract: Semiconductor devices and methods of forming the same are provided. A first gate stack is formed over a substrate, wherein the first gate stack comprises a first ferroelectric layer. A source/channel/drain stack is formed over the first gate stack, wherein the source/channel/drain stack comprises one or more 2D material layers. A second gate stack is formed over the source/channel/drain stack, wherein the second gate stack comprises a second ferroelectric layer.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: January 31, 2017
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., National Taiwan University
    Inventors: Der-Chuan Lai, Pin-Shiang Chen, Hung-Chih Chang, Chee-Wee Liu, Samuel C. Pan
  • Patent number: 9528589
    Abstract: The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: December 27, 2016
    Assignee: Victory Industrial Corporation
    Inventors: Hung-Chih Chang, Szu-En Liu
  • Patent number: D908086
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 19, 2021
    Assignee: Victory Industrial Corporation
    Inventors: Hung-Chih Chang, Fu-Sheng Liang