Patents by Inventor Chung-Hsiang CHANG
Chung-Hsiang 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).
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Publication number: 20240128364Abstract: A semiconductor device includes a fin structure, a metal gate stack, a barrier structure and an epitaxial source/drain region. The fin structure is over a substrate. The metal gate stack is across the fin structure. The barrier structure is on opposite sides of the metal gate stack. The barrier structure comprises one or more passivation layers and one or more barrier layers, and the one or more passivation layers have a material different from a material of the one or more barrier layers. The epitaxial source/drain region is over the barrier structure.Type: ApplicationFiled: March 27, 2023Publication date: April 18, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chun-Ming LUNG, Chung-Ting KO, Ting-Hsiang CHANG, Sung-En LIN, Chi On CHUI
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Publication number: 20240103377Abstract: A composition and method for removing a metal-containing layer or portion of a layer of a pellicle of an EUV mask are provided. The composition includes water; one or more oxidizing agents; and one or more acids. The method includes forming one or more layers over a silicon substrate with at least one of those layers includes a metal containing layer and removing the metal containing layer by contacting the metal containing layer with the composition of the disclosed and claimed subject matter.Type: ApplicationFiled: October 15, 2020Publication date: March 28, 2024Applicant: Versum Materials US, LLCInventors: CHAO-HSIANG CHEN, CHUNG-YI CHANG, YI-CHIA LEE, WEN DAR LIU
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Publication number: 20240096986Abstract: A method includes forming a first gate spacer and a second gate spacer on a sidewall of a first gate structure. The first gate spacer is between the second gate spacer and the first gate structure. A first interlayer dielectric (ILD) layer is formed to surround the first gate spacer, the second gate spacer, and the first gate structure. A portion of the second gate spacer and a portion of the first ILD layer are removed simultaneously. A top surface of the second gate spacer is lower than a top surface of the first ILD layer.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chung-Ting LI, Jen-Hsiang LU, Chih-Hao CHANG
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Patent number: 11832360Abstract: A lamp device includes a controller, a plurality of light-emitting elements, a plurality of current conversion modules and an interpretation module. The controller is configured to output a dimming signal. The current conversion modules are coupled to the light-emitting elements and configured to control the light-emitting elements to emit light. The interpretation module is coupled to the current conversion modules and configured to output, according to a comparison table, a plurality of control signals corresponding to the dimming signal to the current conversion modules respectively. The light-emitting elements are different in a luminous property, and one of the current conversion modules is configured to output a feedback signal to the controller.Type: GrantFiled: October 19, 2022Date of Patent: November 28, 2023Assignee: LEOTEK CORPORATIONInventors: Wei-Ting Wu, Jhao-Tian Pan, Yao-Chi Peng, Chung-Hsiang Chang
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Patent number: 11639727Abstract: A tail gas exhausting pressure stabilization control system is provided. The system can control the pressure and the flow rate of a gas and a driving gas inputted therein, such that when the gas and the driving gas are mixed and outputted to a tail gas exhausting outlet, the pressure thereof can be controlled under a predetermined pressure. Besides, when the back pressure is generated because of the exhausted gases from the outlet, an energy-saving module can adjust the pressure of the driving gas outputted to an eductor in accordance with the detecting result of the back pressure in order to resist the back pressure. Thus, the exhausted gases from the outlet can be still under the predetermined pressure between the gas and a gas distribution component so as to stabilize the pressure and flow rate of the exhausted gases from the outlet and save the driving gas.Type: GrantFiled: January 25, 2022Date of Patent: May 2, 2023Assignee: KINETICS TECHNOLOGY CORPORATIONInventor: Chung-Hsiang Chang
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Publication number: 20230120094Abstract: A tail gas exhausting pressure stabilization control system is provided. The system can control the pressure and the flow rate of a gas and a driving gas inputted therein, such that when the gas and the driving gas are mixed and outputted to a tail gas exhausting outlet, the pressure thereof can be controlled under a predetermined pressure. Besides, when the back pressure is generated because of the exhausted gases from the outlet, an energy-saving pressure regulator can adjust the pressure of the driving gas outputted to an eductor in accordance with the detecting result of the back pressure in order to resist the back pressure. Thus, the exhausted gases from the outlet can be still under the predetermined pressure between the gas and a gas distribution tube so as to stabilize the pressure and flow rate of the exhausted gases from the outlet and save the driving gas.Type: ApplicationFiled: December 15, 2022Publication date: April 20, 2023Inventor: Chung-Hsiang Chang
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Publication number: 20220145908Abstract: A tail gas exhausting pressure stabilization control system is provided. The system can control the pressure and the flow rate of a gas and a driving gas inputted therein, such that when the gas and the driving gas are mixed and outputted to a tail gas exhausting outlet, the pressure thereof can be controlled under a predetermined pressure. Besides, when the back pressure is generated because of the exhausted gases from the outlet, an energy-saving module can adjust the pressure of the driving gas outputted to an eductor in accordance with the detecting result of the back pressure in order to resist the back pressure. Thus, the exhausted gases from the outlet can be still under the predetermined pressure between the gas and a gas distribution component so as to stabilize the pressure and flow rate of the exhausted gases from the outlet and save the driving gas.Type: ApplicationFiled: January 25, 2022Publication date: May 12, 2022Inventor: Chung-Hsiang Chang
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Patent number: 11327564Abstract: An eye-tracking apparatus includes a first lens group, a light splitting device, a display, an image sensor, a second lens group, and a plurality of light sources. The light splitting device receives a first beam, generates a second beam, and transmits the second beam to a second surface of the first lens group. The display projects a reference mark to a target area through the light splitting device and the first lens group. The image sensor captures a detection image on the target area through the first lens group, the light splitting device, and the second lens group. The second lens group is disposed between the light splitting device and the image sensor. The light sources are disposed around the image sensor and project a plurality of beams to the target area through the first lens group, the light splitting device, and the second lens group.Type: GrantFiled: August 19, 2020Date of Patent: May 10, 2022Assignee: HTC CorporationInventors: Meng-Che Tsai, Kuei-Chun Liu, Ching-Chia Chou, Sheng-Le Wang, Chung-Hsiang Chang
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Publication number: 20220057860Abstract: An eye-tracking apparatus includes a first lens group, a light splitting device, a display, an image sensor, a second lens group, and a plurality of light sources. The light splitting device receives a first beam, generates a second beam, and transmits the second beam to a second surface of the first lens group. The display projects a reference mark to a target area through the light splitting device and the first lens group. The image sensor captures a detection image on the target area through the first lens group, the light splitting device, and the second lens group. The second lens group is disposed between the light splitting device and the image sensor. The light sources are disposed around the image sensor and project a plurality of beams to the target area through the first lens group, the light splitting device, and the second lens group.Type: ApplicationFiled: August 19, 2020Publication date: February 24, 2022Applicant: HTC CorporationInventors: Meng-Che Tsai, Kuei-Chun Liu, Ching-Chia Chou, Sheng-Le Wang, Chung-Hsiang Chang
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Publication number: 20210404485Abstract: A tail gas exhausting pressure stabilization control system can control the pressure and the flow rate of a gas and a driving gas inputted therein, such that when the gas and the driving gas are mixed and outputted to a tail gas exhausting outlet, the pressure thereof can be controlled under a predetermined pressure. Besides, when the back pressure is generated because of the exhausted gases from the outlet, an energy-saving module can adjust the pressure of the driving gas outputted to an eductor in accordance with the detecting result of the back pressure in order to resist the back pressure. Thus, the exhausted gases from the outlet can be still under the predetermined pressure between the gas and a gas distribution component so as to stabilize the pressure and flow rate of the exhausted gases from the outlet and save the driving gas.Type: ApplicationFiled: June 30, 2020Publication date: December 30, 2021Inventor: Chung-Hsiang Chang
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Patent number: 11039117Abstract: A dual lens imaging module suitable for an electronic device is provided. The dual lens imaging module includes a first lens, a second lens, and a moving module. The moving module is connected to the second lens and is adapted to move or tilt the second lens, wherein the first lens is a lens having an autofocus function, and a working distance of the dual lens imaging module is adapted to be changed according to a spacing of the first lens and the second lens.Type: GrantFiled: August 27, 2019Date of Patent: June 15, 2021Assignee: HTC CorporationInventors: Yu-Han Chen, Chung-Hsiang Chang, Hong-Kai Huang
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Publication number: 20210067761Abstract: A dual lens imaging module suitable for an electronic device is provided. The dual lens imaging module includes a first lens, a second lens, and a moving module. The moving module is connected to the second lens and is adapted to move or tilt the second lens, wherein the first lens is a lens having an autofocus function, and a working distance of the dual lens imaging module is adapted to be changed according to a spacing of the first lens and the second lens.Type: ApplicationFiled: August 27, 2019Publication date: March 4, 2021Applicant: HTC CorporationInventors: Yu-Han Chen, Chung-Hsiang Chang, Hong-Kai Huang
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Publication number: 20210021743Abstract: A handheld electronic device includes an optical imaging module, a case and a display device. The optical imaging module is adapted to receive a light beam. The optical imaging module includes a lens group, a linear polarization element, a beam splitting element, two reflection groups and a photosensitive element along an optical axis from an object side to an image side. The optical axis includes a first optical axis and a second optical axis that is not parallel to the first optical axis. The lens group, the linear polarization element, the beam splitting element and the photosensitive element are located on the first optical axis, the two reflection groups and the beam splitting element are located on the second optical axis, and the beam splitting element is disposed between the two reflection groups.Type: ApplicationFiled: July 19, 2019Publication date: January 21, 2021Applicant: HTC CorporationInventors: Chung-Hsiang Chang, Meng-Che Tsai, Kuei-Chun Liu
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Patent number: 9268416Abstract: A stylus includes a body, a conductive control structure, a charge transporting structure, and a signal transmission module. The body has a first end and a second end opposite to each other. The conductive control structure is configured at the first end and equipped with a control surface. The charge transporting structure is disposed at a side of the body and covers at least one portion of a hand-held region on the side of the body. Besides, the charge transporting structure is electrically coupled to the conductive control structure. The signal transmission module is disposed in the body and transmits a radio frequency signal to the second end according to a trigger signal.Type: GrantFiled: February 9, 2012Date of Patent: February 23, 2016Assignee: HTC CorporationInventors: Ming-Shian Lee, Chung-Hsiang Chang, Hsing-Chiang Huang
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Publication number: 20130033437Abstract: A stylus includes a body, a conductive control structure, a charge transporting structure, and a signal transmission module. The body has a first end and a second end opposite to each other. The conductive control structure is configured at the first end and equipped with a control surface. The charge transporting structure is disposed at a side of the body and covers at least one portion of a hand-held region on the side of the body. Besides, the charge transporting structure is electrically coupled to the conductive control structure. The signal transmission module is disposed in the body and transmits a radio frequency signal to the second end according to a trigger signal.Type: ApplicationFiled: February 9, 2012Publication date: February 7, 2013Applicant: HTC CORPORATIONInventors: Ming-Shian Lee, Chung-Hsiang Chang, Hsing-Chiang Huang
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Publication number: 20110000983Abstract: A shower head comprises an upper body including a tubular portion having a passage formed therein, a connection including an arcuately-curved wall extending radially and having multiple spaced impellers extending downward, each impeller including an arc-shaped biasing end mounted on an inner side thereof and extending downward to define a fixing space, a disc portion including an upper surface fixed on a bottom end thereof; a lower body including a concave lower wall having a conical guiding member extending upward and having an arcuate peripheral side extending downward, wherein the peripheral side is received in the fixing space to abut against the biasing ends so that the peripheral side defines an arc-shaped offset passage extending downward between the arcuately-curved wall and any two abutting impellers; the lower wall engaging with the upper body to define multiple radially extending channels and including multiple outlets to spray water arranged along the channels.Type: ApplicationFiled: July 1, 2009Publication date: January 6, 2011Inventor: Chung-Hsiang Chang
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Publication number: 20100126612Abstract: A water flow temperature control system is described. A hot and cold water flow respectively flow through a first and a second inlet passage of a valve and reach a temperature control sheet through a pressure equalization valve and two water seals. The quantities of the water flows are controlled by changing positions of two large or two small tapered adjusting holes on the temperature control sheet relative to the two water seals before flowing towards a water mixer of a mixing device. The water flows enter from a large opening portion of the water mixer, and are mixed in a helical direction. After that, the water flows pass through a number of outlet holes on a small opening portion of the water mixer towards an outlet passage of the valve. The center of the temperature control sheet is connected to a first end of a transmission shaft.Type: ApplicationFiled: November 25, 2008Publication date: May 27, 2010Applicant: GLOBE UNION INDUSTRIAL CORP.Inventors: Chung-Yi HUANG, Ming-Chia WU, Tsung-Yi LO, Chung-Hsiang CHANG