Patents by Inventor Chih-Hao Chung
Chih-Hao Chung 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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Patent number: 11951587Abstract: The present disclosure is directed to techniques of zone-based target control in chemical mechanical polishing of wafers. Multiple zones are identified on a surface of a wafer. The CMP target is achieved on each zone in a sequence of CMP processes. Each CMP process in the sequence achieves the CMP target for only one zone, using a CMP process selective to other zones.Type: GrantFiled: August 12, 2019Date of Patent: April 9, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Che-Liang Chung, Che-Hao Tu, Kei-Wei Chen, Chih-Wen Liu
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Publication number: 20240089607Abstract: An image sensing device and a control device of an illumination device thereof are provided. The control device includes a control circuit, an operation circuit, and multiple driving signal generators. The control circuit generates multiple control signals. The operation circuit performs a logical operation on the control signals and an image capturing signal to generate multiple operation results. The driving signal generator respectively provides multiple driving signals to the illumination device according to the operation results, and the driving signals respectively have multiple different output powers.Type: ApplicationFiled: May 29, 2023Publication date: March 14, 2024Applicant: HTC CorporationInventors: Chao Shuan Huang, Sheng-Long Wu, Yu-Jui Hsu, Shih-Yao Tsai, Tun-Hao Chao, Sen-Lin Chung, Chih Pin Chung, Chih-Yuan Chien, Shih Hong Sun
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Patent number: 9022751Abstract: An impeller includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion, a peripheral portion, and first and second surfaces. The first surface faces away from the second surface in a first direction, and the second surface faces away from the first surface in a second direction. The metal base plate is flat between the shaft-coupling portion and the peripheral portion. The first surface has a permanent magnet. The shaft has a fixing end coupled with the shaft-coupling portion, as well as a free end extending axially in the first direction. Each plastic blade has a coupling portion coupled with the peripheral portion, as well as an air-driving portion axially extending in the second direction. The impeller may be rotatably coupled with a driving module. The driving module is installed in a fan frame to form an advection fan.Type: GrantFiled: September 14, 2012Date of Patent: May 5, 2015Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Yuan-Jie Zheng, Chih-Hao Chung, Tso-Kuo Yin
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Patent number: 8974194Abstract: An impeller of an advection-type fan includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion and a peripheral portion, with a first plane facing in a first direction and a second plane facing in a second direction opposite to the first direction arranged between the shaft-coupling portion and the peripheral portion. The metal base plate is in a plane form between the shaft-coupling portion and the peripheral portion. The shaft has a fixing end and a free end. The fixing end is coupled with the shaft-coupling portion, and the free end extends in the first direction. Each plastic blade has a coupling portion and an air-driving portion. The coupling portion is coupled with the peripheral portion, and the air-driving portion extends in the second direction.Type: GrantFiled: March 13, 2012Date of Patent: March 10, 2015Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Tso-Kuo Yin, Chih-Hao Chung, Yuan-Jie Zheng
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Publication number: 20130243628Abstract: An impeller includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion, a peripheral portion, and first and second surfaces. The first surface faces away from the second surface in a first direction, the second surface faces away from the first surface in a second direction. The metal base plate is flat between the shaft-coupling portion and the peripheral portion. The first surface has a permanent magnet. The shaft has a fixing end coupled with the shaft-coupling portion, as well as a free end extending axially in the first direction. Each plastic blade has a coupling portion coupled with the peripheral portion, as well as an air-driving portion axially extending in the second direction. The impeller may be rotatably coupled with a driving module. The driving module is installed in a fan frame to form an advection fan.Type: ApplicationFiled: September 14, 2012Publication date: September 19, 2013Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Yuan-Jie Zheng, Chih-Hao Chung, Tso-Kuo Yin
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Publication number: 20130149128Abstract: An impeller of an advection-type fan includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion and a peripheral portion, with a first plane facing in a first direction and a second plane facing in a second direction opposite to the first direction arranged between the shaft-coupling portion and the peripheral portion. The metal base plate is in a plane form between the shaft-coupling portion and the peripheral portion. The shaft has a fixing end and a free end. The fixing end is coupled with the shaft-coupling portion and the free end extends in the first direction. Each plastic blade has a coupling portion and an air-driving portion. The coupling portion is coupled with the peripheral portion and the air-driving portion extends in the second direction.Type: ApplicationFiled: March 13, 2012Publication date: June 13, 2013Inventors: Tso-Kuo Yin, Chih-Hao Chung, Yuan-Jie Zheng
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Patent number: 8391009Abstract: A heat dissipating assembly includes a circuit board having opposite first and second faces. The circuit board further includes a through-hole extending from the first face through the second face. A heat generating element is mounted on the first face of the circuit board and electrically coupled to the circuit board. The heat generating element includes a heat conducting portion aligned with the through-hole. A heat dissipating unit includes a base having an engaging face in contact with the second face of the circuit board. A heat conducting adhesive is filled in the through-hole. The heat conducting adhesive is engaged with the engaging face of the base and the heat conducting portion of the heat generating element. The heat generating element is directly engaged with the heat dissipating unit by the heat conducting adhesive to effectively enhance the overall heat dissipating efficiency while reducing the number of members to lower the manufacturing costs.Type: GrantFiled: October 1, 2010Date of Patent: March 5, 2013Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Chi-Hung Kuo, Chih-Hao Chung
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Patent number: 8292465Abstract: A lamp includes a housing, a heat sink, a light emitter, a fan and a blocking ring. The housing includes first and second shells, with the first shell forming a light-transparent portion and a first engaging portion. An air outlet portion is formed in a wall of the first shell, with the second shell forming a second engaging portion and a base. An air inlet portion is formed in a wall of the second shell. The heat sink includes a base plate and a plurality of fins defining a compartment. Each of the fins has first and second ends. The light emitter is electrically connected to the base. The blocking ring is mounted inside the housing. The blocking ring has two sides forming first and second flanges. The blocking ring further includes a side forming a protrusion ring and partially covering an outer periphery of the heat sink.Type: GrantFiled: December 9, 2011Date of Patent: October 23, 2012Assignee: Sunonwealth Electronic Machine Industry Co., Ltd.Inventors: Alex Horng, Chih-Hao Chung, Heng-Yu Hu, Ming-Tsung Li
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Patent number: 8279607Abstract: A cooling module assembly method includes forming at least one through-hole on a circuit board; coupling the circuit board to a heat dissipating unit so that a face of the circuit board is coupled to a coupling face of the heat dissipating unit; filling the at least one through-hole with metal solders; fixing at least one heat-generating element to another face of the circuit board, with the at least one heat-generating element aligned with and covering the at least one through-hole; and soldering the at least one heat-generating element and the heat dissipating unit together by melting the metal solders in the at least one through-hole.Type: GrantFiled: June 30, 2010Date of Patent: October 2, 2012Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Chi-Hung Kuo, Chih-Hao Chung, Chung-Ken Cheng, Jui-Feng Wang
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Patent number: 8277345Abstract: A stepless transmitting and speed-varying structure contains a power mechanism to drive a first transmission shaft by using power. The first transmission shaft is connected with a set of disk members including fixed and movable discs. A transmitting mechanism includes a belt disposed on the disk members, with one end of the belt connected with an intermediate speed-varying stem coaxial with a transmitting member to actuate a second transmission shaft. The second transmission shaft includes a resilient member, with one end of the resilient member coupled with the intermediate speed-varying stem and with another end thereof connected with a fixed member. A speed varying mechanism includes the second transmission shaft connected with a variable speed member, an actuated member, and plural eccentric blocks. The variable speed member couples with a connecting rod, with one end of the connecting rod joined with the movable disc.Type: GrantFiled: July 15, 2010Date of Patent: October 2, 2012Inventor: Chih-Hao Chung
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Publication number: 20120081911Abstract: A lamp includes a housing, a heat sink, a light emitter, a fan and a blocking ring. The housing includes first and second shells, with the first shell forming a light-transparent portion and a first engaging portion. An air outlet portion is formed in a wall of the first shell, with the second shell forming a second engaging portion and a base. An air inlet portion is formed in a wall of the second shell. The heat sink includes a base plate and a plurality of fins defining a compartment. Each of the fins has first and second ends. The light emitter is electrically connected to the base. The blocking ring is mounted inside the housing. The blocking ring has two sides forming first and second flanges. The blocking ring further includes a side forming a protrusion ring and partially covering an outer periphery of the heat sink.Type: ApplicationFiled: December 9, 2011Publication date: April 5, 2012Inventors: Alex HORNG, Chih-Hao CHUNG, Heng-Yu HU, Ming-Tsung LI
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Publication number: 20120049698Abstract: A BLDC motor with dual rotation directions includes a rotor and a stator. The rotor has a rotating portion and a magnet portion, wherein the magnet portion has a plurality of magnetic poles each having a magnetic pole face. The stator has an excitation assembly and a control assembly. The rotating portion of the rotor is rotatably coupled with the stator. The excitation assembly has at least one excitation face and at least one coil. The control assembly is coupled to the at least one coil and has two sensors adjacent to the magnet portion. A distance exists between the two sensors on a rotational path of the magnet portion.Type: ApplicationFiled: November 4, 2010Publication date: March 1, 2012Inventors: Alex Horng, Kuan-Yin Hou, Chung-Ken Cheng, Chi-Hung Kuo, Chih-Hao Chung
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Publication number: 20120015767Abstract: A stepless transmitting and speed-varying structure contains a power mechanism to drive a first transmission shaft by using a power, the first transmission shaft being connected with a set of disk member including a fixed and a movable discs; a transmitting mechanism including a belt disposed on the disk member, one end of the belt being connected with an intermediate speed-varying stem being coaxial with a transmitting member to actuate a second transmission shaft, the second transmission shaft including a resilient member, one end of the resilient member being coupled with the intermediate speed-varying stem, another end thereof being connected with a fixed member; a speed varying mechanism including the second transmission shaft connected with a variable speed member and an actuated member, plural eccentric blocks, the variable speed member coupling with a connecting rod, one end of the connecting rod being joined with the movable disc.Type: ApplicationFiled: July 15, 2010Publication date: January 19, 2012Inventor: CHIH-HAO CHUNG
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Publication number: 20110310559Abstract: A heat dissipating assembly includes a circuit board having opposite first and second faces. The circuit board further includes a through-hole extending from the first face through the second face. A heat generating element is mounted on the first face of the circuit board and electrically coupled to the circuit board. The heat generating element includes a heat conducting portion aligned with the through-hole. A heat dissipating unit includes a base having an engaging face in contact with the second face of the circuit board. A heat conducting adhesive is filled in the through-hole. The heat conducting adhesive is engaged with the engaging face of the base and the heat conducting portion of the heat generating element. The heat generating element is directly engaged with the heat dissipating unit by the heat conducting adhesive to effectively enhance the overall heat dissipating efficiency while reducing the number of members to lower the manufacturing costs.Type: ApplicationFiled: October 1, 2010Publication date: December 22, 2011Inventors: Alex HORNG, Chi-Hung KUO, Chih-Hao CHUNG
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Publication number: 20110292614Abstract: A cooling module assembly method comprises forming at least one through-hole on a circuit board; coupling the circuit board to a heat dissipating unit so that a face of the circuit board is coupled to a coupling face of the heat dissipating unit; filling the at least one through-hole with metal solders; fixing at least one heat-generating element to another face of the circuit board, wherein the at least one heat-generating element aligns with and covers the at least one through-hole; and soldering the at least one heat-generating element and the heat dissipating unit together by melting the metal solders in the at least one through-hole.Type: ApplicationFiled: June 30, 2010Publication date: December 1, 2011Inventors: Alex Horng, Chi-Hung Kuo, Chih-Hao Chung, Chung-Ken Cheng, Jui-Feng Wang
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Publication number: 20110284199Abstract: A cooling module comprises a heat sink, a cooling fan, a control assembly, a temperature sensor and a resilient heat conductor. The cooling fan facilitates cooling efficiency of the heat sink. The control assembly has a circuit board controlling rotation of the cooling fan. The temperature sensor is coupled to the circuit board of the control assembly and has a sensing face. The resilient heat conductor is disposed between the heat sink and the temperature sensor and has a first contact face and a second contact face, wherein the first contact face contacts the sensing face of the temperature sensor and the second contact face contacts a face of the heat sink.Type: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Inventors: Alex Horng, Chih-Hao Chung, Yu-Yuan Lu
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Publication number: 20110279981Abstract: A heat dissipating assembly includes a circuit board having opposite first and second faces. The circuit board further includes a through-hole extending from the first face through the second face. A heat generating element is mounted on the first face of the circuit board and electrically coupled to the circuit board. The heat generating element includes a heat conducting portion aligned with the through-hole. A heat dissipating unit includes a base having an engaging face in contact with the second face of the circuit board. A metal solder is filled in the through-hole. The metal solder is engaged with the engaging face of the base and the heat conducting portion of the heat generating element. The heat generating element is directly engaged with the heat dissipating unit by the metal solder to effectively enhance the overall heat dissipating efficiency while reducing the number of members to lower the manufacturing costs.Type: ApplicationFiled: June 18, 2010Publication date: November 17, 2011Inventors: Alex Horng, Chi-Hung Kuo, Chih-Hao Chung
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Patent number: 7905633Abstract: A light emitter with heat-dissipating module includes a light unit, a first heat-dissipating member, a second heat-dissipating member and a fastening member. The light unit includes a light-emitting element and a supporting plate having a pair of opposite surfaces. The first heat-dissipating member includes a first combining surface and a heat-dissipating portion. The first combining surface contacts with one of said two opposite surfaces of the supporting plate. The second heat-dissipating member includes a second combining surface and a heat-dissipating portion. The second combining surface contacts with the other of said two opposite surfaces of the supporting plate. The fastening member couples to the supporting plate, the first heat-dissipating member and the second heat-dissipating member to fix the combination of the supporting plate and the first and second heat-dissipating members.Type: GrantFiled: April 10, 2009Date of Patent: March 15, 2011Assignee: Sunonwealth Electronic Machine Industry Co., Ltd.Inventors: Alex Horng, Masaharu Miyahara, Chih-Hao Chung
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Publication number: 20100295436Abstract: A lamp includes a housing, a heat sink, a light emitter, a fan and a blocking ring. The housing has an air inlet portion and an air outlet portion formed in a wall of the housing. The heat sink includes a base plate and a plurality of fins surrounding the base plate to define a compartment. Each of the fins have a first end facing the air inlet portion of the housing and a second end connecting with the base plate. The light emitter is fixed to the base plate of the heat sink. The fan is fixed inside the compartment of the heat sink. The blocking ring is mounted between the air inlet portion and the heat sink. Accordingly, the blocking ring blocks part of the heated airflow from flowing back to the air inlet portion and turbulence is avoided effectively. Therefore, the airflow inside the housing can flow smoothly through the air outlet to transfer heat to the environment and heat dissipating efficiency is enhanced.Type: ApplicationFiled: May 19, 2009Publication date: November 25, 2010Inventors: Alex Horng, Chih-Hao Chung, Heng-Yu Hu, Ming-Tsung Li
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Publication number: 20100259932Abstract: A light emitter with heat-dissipating module includes a light unit, a first heat-dissipating member, a second heat-dissipating member and a fastening member. The light unit includes a light-emitting element and a supporting plate having a pair of opposite surfaces. The first heat-dissipating member includes a first combining surface and a heat-dissipating portion. The first combining surface contacts with one of said two opposite surfaces of the supporting plate. The second heat-dissipating member includes a second combining surface and a heat-dissipating portion. The second combining surface contacts with the other of said two opposite surfaces of the supporting plate. The fastening member couples to the supporting plate, the first heat-dissipating member and the second heat-dissipating member to fix the combination of the supporting plate and the first and second heat-dissipating members.Type: ApplicationFiled: April 10, 2009Publication date: October 14, 2010Inventors: Alex HORNG, Masaharu Miyahara, Chih-Hao Chung