Patents by Inventor Hung-Chun Chang
Hung-Chun 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: 20240120325Abstract: A stacked package structure and a manufacturing method thereof are provided. The stacked package structure includes an upper redistribution layer, a first chip, and an upper molding layer. The first chip is disposed on the upper redistribution layer and is electrically connected to the upper redistribution layer. The upper molding layer is disposed on the first chip and the upper redistribution layer, and is configured to package the first chip. The upper molding layer includes a recess, the recess is recessed relative to a surface of the upper molding layer away from the upper redistribution layer, and the recess is circumferentially formed around a periphery of the upper molding layer.Type: ApplicationFiled: May 31, 2023Publication date: April 11, 2024Applicant: POWERTECH TECHNOLOGY INC.Inventors: Pei-chun TSAI, Hung-hsin HSU, Shang-yu CHANG CHIEN, Chia-ling LEE
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Patent number: 11916035Abstract: A packaging structure including first, second, and third dies, an encapsulant, a circuit structure, and a filler is provided. The encapsulant covers the first die. The circuit structure is disposed on the encapsulant. The second die is disposed on the circuit structure and is electrically connected to the circuit structure. The third die is disposed on the circuit structure and is electrically connected to the circuit structure. The third die has an optical signal transmission area. The filler is disposed between the second die and the circuit structure and between the third die and the circuit structure. A groove is present on an upper surface of the circuit structure. The upper surface includes first and second areas located on opposite sides of the groove. The filler directly contacts the first area. The filler is away from the second area. A manufacturing method of a packaging structure is also provided.Type: GrantFiled: August 3, 2021Date of Patent: February 27, 2024Assignee: Powertech Technology Inc.Inventors: Shang-Yu Chang Chien, Nan-Chun Lin, Hung-Hsin Hsu
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Patent number: 9946247Abstract: A system for managing real-time work information of a motor fitting provides a sensor set at the motor fitting to transmit the real-time work information to a processing module. A processing unit of the processing module sends type information and a real-time work parameter according to the real-time work information. When a detection unit determines the real-time work parameter is fallen outside a normal work parameter according to a lookup table stored in a database and the type information, the detection unit generates an abnormal-notification signal for transmission. When an application procedure of the application-processing unit is triggered, the application-processing unit activates a play unit to play the normal work parameter, and further the activated play unit plays notification information upon receiving the abnormal-notification signal.Type: GrantFiled: August 27, 2015Date of Patent: April 17, 2018Assignee: Teco Electric & Machinery Co., Ltd.Inventors: Chao-Kai Liu, Ji-Hung Kang, Hung-Chun Chang, Chen-Shun Hung, Chun-Hung Chen, Chien-Hung Chen
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Publication number: 20160378095Abstract: A system for managing real-time work information of a motor fitting provides a sensor set at the motor fitting to transmit the real-time work information to a processing module. A processing unit of the processing module sends type information and a real-time work parameter according to the real-time work information. When a detection unit determines the real-time work parameter is fallen outside a normal work parameter according to a lookup table stored in a database and the type information, the detection unit generates an abnormal-notification signal for transmission. When an application procedure of the application-processing unit is triggered, the application-processing unit activates a play unit to play the normal work parameter, and further the activated play unit plays notification information upon receiving the abnormal-notification signal.Type: ApplicationFiled: August 27, 2015Publication date: December 29, 2016Inventors: CHAO-KAI LIU, JI-HUNG KANG, HUNG-CHUN CHANG, CHEN-SHUN HUNG, CHUN-HUNG CHEN, CHIEN-HUNG CHEN
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Publication number: 20140359937Abstract: A bedstead with adjustable height has a base, a passive frame and a connecting frame. The base connects with the passive frame through the lifting element, so that the height of the passive frame can be adjusted through the lifting element. Also, the passive frame moves linearly through the restriction rod along the rail rod to increase the preciseness and stableness of the movement of the lifting element. The connecting frame is disposed between the base and the passive frame, wherein the connecting frame has two corresponding connecting rods and driving rods to form a supporting frame, so the passive frame and the base are balanced with each other through the connecting frame to increase the strength between the passive frame and the base and evenly distribute the pressure on the surface of the passive frame to prevent unsmooth adjustment of the passive frame due to single-sided pressure.Type: ApplicationFiled: June 10, 2013Publication date: December 11, 2014Inventor: HUNG-CHUN CHANG
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Publication number: 20100135626Abstract: A waveguide for guiding terahertz waves with wavelength ranging 0.1 mm-3 mm, includes a cladding tube made of a metal-free dielectric material, and a core filling a transmission space defined by the cladding tube. The core has a minimum width or diameter larger than the wavelength of the terahertz wave guided by the waveguide. The thickness of the cladding tube is smaller than the radius or one half of the width of the core. The core has an attenuation constant for the terahertz waves lower than that of the cladding tube. The waveguide guides terahertz waves mainly inside the core, and has a simple construction.Type: ApplicationFiled: August 5, 2009Publication date: June 3, 2010Applicant: National Taiwan UniversityInventors: Chi-Kuang Sun, Hung-Chun Chang, Chih-Hsien Lai, Yu-Chun Hsueh
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Patent number: 7577144Abstract: The present invention provides a dynamic network address translation system and method of transparent private network device. With the NAT approach, the first device in a public network can be connected to a second device in a private network. The first packet for the connection is sent from the first device in the public network to the second device in the private network. Before establishing the connection, the first device exchanges information between the NAPT router of the private network. The NAPT router maintains its translation table according to the information. Then, the first device sends a connection request to a specific port of the NAPT router, and the packet will be transformed and routed properly to the second device.Type: GrantFiled: May 21, 2003Date of Patent: August 18, 2009Assignee: Industrial Technology Research InstituteInventors: Hung-chun Chang, Ming-Deng Hsieh, Chien-Chao Tseng, Hung-Ming Tsai
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Patent number: 7537884Abstract: The present invention discloses a method by utilizing chemical reaction or specific attractive forces (complexation or hydrogen bonding) for forming self-synthesizing conductive or conjugated polymer film and its application. First of all, at least one photoresist layer with a first functional group and a specific pattern is formed, so that the first functional group can bond a second functional group of a conductive or conjugated polymer unit, whereby a conductive or conjugated polymer film with specific pattern is formed. Furthermore, this invention can be applied for forming emitting films, especially for forming emitting layers of OLED/PLED elements.Type: GrantFiled: October 20, 2004Date of Patent: May 26, 2009Assignee: National Taiwan UniversityInventors: Kuo-Huang Hsieh, Man-Kit Leung, King-Fu Lin, Wen-Yen Chiu, Wen-Chang Chen, Lee-Yih Wang, Wen-Bin Liau, Chi-An Dai, Wei-Fang Su, Hung-Chun Chang, Hung-Ren Wang, Chao-Hui Kuo, Chi-Shin Lee, Jun-Ming Huang, Cheng-Yuan Shih
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Publication number: 20060132645Abstract: An electronic communication device is provided, which includes a scene shooting portion, a communication portion and a hinge portion. The scene shooting portion includes a lens. The communication portion includes a display unit. The hinge portion is for connecting the scene shooting portion and the communication portion, so that the scene shooting portion can rotate with respect to the communication portion.Type: ApplicationFiled: December 5, 2005Publication date: June 22, 2006Inventors: Yu-Chuan Chang, Mei-Lin Chan, Chung-Jen Chung, Hung-Chun Chang
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Publication number: 20060084009Abstract: The present invention discloses a method by utilizing chemical reaction or specific attractive forces (complexation or hydrogen bonding) for forming self-synthesizing conductive or conjugated polymer film and its application. First of all, at least one photoresist layer with a first functional group and a specific pattern is formed, so that the first functional group can bond a second functional group of a conductive or conjugated polymer unit, whereby a conductive or conjugated polymer film with specific pattern is formed. Furthermore, this invention can be applied for forming emitting films, especially for forming emitting layers of OLED/PLED elements.Type: ApplicationFiled: October 20, 2004Publication date: April 20, 2006Inventors: Kuo-Huang Hsieh, Man-Kit Leung, King-Fu Lin, Wen-Yen Chiu, Wen-Chang Chen, Lee-Yih Wang, Wen-Bin Liau, Chi-An Dai, Wei-Fang Su, Hung-Chun Chang, Hung-Ren Wang, Chao-Hui Kuo, Chi-Shin Lee, Jun-Ming Huang, Cheng-Yuan Shih
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Patent number: 6754079Abstract: A knock down heat sink, and more particularly, to one that comprised of multiple fins overlapped among one another into a stack and a specific spacing is defined between any two abutted fins to provide good heat dispersion and form a reliable heat sink allowing extension as desired for production cost reduction, increased production capability and easier assembly.Type: GrantFiled: April 18, 2003Date of Patent: June 22, 2004Inventor: Hung-Chun Chang
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Publication number: 20040100976Abstract: The present invention provides a dynamic network address translation system and method of transparent private network device. With the NAT approach, the first device in a public network can be connected to a second device in a private network. The first packet for the connection is sent from the first device in the public network to the second device in the private network. Before establishing the connection, the first device exchanges information between the NAPT router of the private network. The NAPT router maintains its translation table according to the information. Then, the first device sends a connection request to a specific port of the NAPT router, and the packet will be transformed and routed properly to the second device.Type: ApplicationFiled: May 21, 2003Publication date: May 27, 2004Applicant: Industrial Technology Research InstituteInventors: Hung-Chun Chang, Ming-Deng Hsieh, Chien-Chao Tseng, Hung-Ming Tsai