Patents by Inventor Kai-Chieh Chang
Kai-Chieh 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: 20240121547Abstract: A venting device includes a first flap, which is configured to be actuated to swing upward during a rising time, and a second flap, which is disposed opposite to the first flap and configured to be actuated to swing downward during a falling time, a first actuating portion disposed on the first flap, and a second actuating portion disposed on the second flap. The venting device configured to form a vent is disposed within a wearable sound device or to be disposed within the wearable sound device. The vent is formed via applying a first voltage to the first actuating portion and applying a second voltage on the second actuating portion, such that the venting device gradually forms the vent.Type: ApplicationFiled: December 6, 2023Publication date: April 11, 2024Applicant: xMEMS Labs, Inc.Inventors: Wen-Chien Chen, Kai-Chieh Chang, Chiung C. Lo, Yuan-Shuang Liu
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Publication number: 20240108133Abstract: A locker system capable of dynamically generating a storage space based on an object volume and an operation method thereof are disclosed. In the locker system, at least one group of support members is disposed on a cabinet body to allow a user to select whether to dispose a detachable carrier; in order to place an stored object into the cabinet body, an object volume of the stored object is detected, the user is prompted to dispose the detachable carrier at a specified location inside the cabinet body based on the object volume, so that the interior space of the cabinet door can be dynamically partitioned to generate an appropriate storage space for placing the stored object, thereby achieving the technical effect of improving a space usage rate.Type: ApplicationFiled: September 21, 2023Publication date: April 4, 2024Inventor: Kai-Chieh CHANG
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Patent number: 11927799Abstract: A data transmission system is disclosed. The data transmission system includes at least one signal processing device, at least one conversion device, at least one antenna device, and at least one flexible printed circuit board. The at least one signal processing device is configured to generate or receive at least one data. The at least one conversion device is configured to transform between the at least one data and an optical signal. The at least one antenna device is configured to obtain the at least one data according to the optical signal, and configured to receive or transmit the at least one data wirelessly. The at least one flexible printed circuit board includes at least one conductive layer and at least one optical waveguide layer. The at least one optical waveguide layer is configured to transmit the optical signal.Type: GrantFiled: December 31, 2020Date of Patent: March 12, 2024Inventors: Po-Kuan Shen, Chun-Chiang Yen, Chiu-Lin Yu, Kai-Lun Han, Jenq-Yang Chang, Mao-Jen Wu, Chao-Chieh Hsu
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Publication number: 20240019789Abstract: A reticle is pre-heated prior to an exposure operation of a semiconductor substrate lot to reduce substrate to substrate temperature variations of the reticle in the exposure operation. The reticle may be pre-heated while being stored in a reticle storage slot, while being transferred from the reticle storage slot to a reticle stage of an exposure tool, and/or in another location prior to being secured to the reticle stage for the exposure operation. In this way, the reduction in temperature variation of the reticle in the exposure operation provided by pre-heating the reticle may reduce overlay deltas and misalignment for the semiconductor substrates that are processed in the exposure operation. This increases overlay performance, increases yield of the exposure tool, and increases semiconductor device quality.Type: ApplicationFiled: August 9, 2023Publication date: January 18, 2024Inventors: Kai-Chieh CHANG, Kai-Fa HO, Li-Jui CHEN, Heng-Hsin LIU
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Publication number: 20230384688Abstract: Some implementations described herein provide an exposure tool and associated methods of operation in which a scanner control system generates a scanner route for an exposure recipe such that the distance traveled by a substrate stage of the exposure tool along the scanner route is reduced and/or optimized for non-exposure fields on a semiconductor substrate. In this way, the scanner control system increases the productivity of the exposure tool, reduces processing times of the exposure tool, and increases yield in a semiconductor fabrication facility in which the exposure tool is included.Type: ApplicationFiled: August 9, 2023Publication date: November 30, 2023Inventors: Kai-Chieh CHANG, Kai-Fa HO, Li-Jui CHEN, Heng-Hsin LIU
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Patent number: 11822256Abstract: A reticle is pre-heated prior to an exposure operation of a semiconductor substrate lot to reduce substrate to substrate temperature variations of the reticle in the exposure operation. The reticle may be pre-heated while being stored in a reticle storage slot, while being transferred from the reticle storage slot to a reticle stage of an exposure tool, and/or in another location prior to being secured to the reticle stage for the exposure operation. In this way, the reduction in temperature variation of the reticle in the exposure operation provided by pre-heating the reticle may reduce overlay deltas and misalignment for the semiconductor substrates that are processed in the exposure operation. This increases overlay performance, increases yield of the exposure tool, and increases semiconductor device quality.Type: GrantFiled: August 27, 2021Date of Patent: November 21, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kai-Chieh Chang, Kai-Fa Ho, Li-Jui Chen, Heng-Hsin Liu
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Patent number: 11809087Abstract: Some implementations described herein provide an exposure tool and associated methods of operation in which a scanner control system generates a scanner route for an exposure recipe such that the distance traveled by a substrate stage of the exposure tool along the scanner route is reduced and/or optimized for non-exposure fields on a semiconductor substrate. In this way, the scanner control system increases the productivity of the exposure tool, reduces processing times of the exposure tool, and increases yield in a semiconductor fabrication facility in which the exposure tool is included.Type: GrantFiled: August 27, 2021Date of Patent: November 7, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kai-Chieh Chang, Kai-Fa Ho, Li-Jui Chen, Heng-Hsin Liu
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Patent number: 11778165Abstract: A floating three-dimensional image display system is provided. The floating three-dimensional image display system includes a controller and a first floating image display device. The controller converts a plurality of image information of an electronic device into a plurality of first floating image information according to the plurality of image information and a plurality of depth information of the electronic device, and displays the plurality of first floating image information in a space above a first side of the first floating image display device through the first floating image display device.Type: GrantFiled: April 28, 2021Date of Patent: October 3, 2023Assignee: Lixel Inc.Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang
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Patent number: 11763845Abstract: A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.Type: GrantFiled: December 17, 2021Date of Patent: September 19, 2023Assignee: SEAGATE TECHNOLOGY LLCInventors: Florin Zavaliche, Kai Chieh Chang, Pin-Wei Huang, Ganping Ju, Jan-Ulrich Thiele
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Patent number: 11687166Abstract: An image processing system and an image processing device are provided. The image processing system includes an electronic device and the image processing device. The image processing device is connected to the electronic device. The image processing device displays a floating three-dimensional input device image information. The image processing device interacts with an object through the three-dimensional input device image information to generate a plurality of control signals, and transmits the plurality of control signals to the electronic device.Type: GrantFiled: March 17, 2021Date of Patent: June 27, 2023Assignee: LIXEL INC.Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang, Ta-Kai Lin, Yu-Hsien Li
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Patent number: 11683469Abstract: A stereoscopic image display device is provided and includes a flat panel display unit, a lens array unit, and a spacer unit. The flat panel display unit has a display surface. The lens array unit includes at least one condenser lens, which is disposed on a side of the display surface. The spacer unit is disposed between the display surface and the condenser lens, such that the lens array unit and the flat panel display unit are spaced apart from each other. In a light field system of the stereoscopic image display device, an object distance between the display surface of the flat panel display unit and the condenser lens of the lens array unit is configured to enable an absolute value of a central depth plane (CDP) of the stereoscopic image display device in the light field system to be between 1 mm and 200 mm.Type: GrantFiled: July 8, 2021Date of Patent: June 20, 2023Assignee: Lixel Inc.Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang, Hsin-You Hou, Kuan-Yu Chen
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Publication number: 20230178106Abstract: A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.Type: ApplicationFiled: December 17, 2021Publication date: June 8, 2023Applicant: Seagate Technology LLCInventors: Florin Zavaliche, Kai Chieh Chang, Pin-Wei Huang, Ganping Ju, Jan-Ulrich Thiele
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Publication number: 20230056353Abstract: A micro scanning mirror, including a fixed substrate, a lens, and multiple cantilevers, are provided. Each cantilever includes a piezoelectric material structure, multiple first drive electrodes, and multiple second drive electrodes. The piezoelectric material structure includes a connecting part, a folding part, and a fixed part. The connecting part connects the lens along a direction parallel to a central axis of the lens. The folding part has a bending region and multiple drive electrode regions. The fixed part is connected to the fixed substrate, and the folding part is connected to the connecting part and the fixed part. The first drive electrodes and the second drive electrodes are respectively located in the corresponding drive electrode regions in the folding part. The micro scanning mirror of the disclosure can drive a large-sized micro mirror to rotate at an appropriate rotation angle.Type: ApplicationFiled: August 3, 2022Publication date: February 23, 2023Applicant: Coretronic MEMS CorporationInventors: Shih-Chi Liu, Wei-Leun Fang, Kai-Chih Liang, Kai-Chieh Chang, Ming-Ching Wu
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Patent number: 11575879Abstract: A stereoscopic image display device includes a flat panel display unit, a lens array unit, and a light guide structure unit. The light guide structure unit includes a light guide microstructure. The light guide microstructure is disposed on a side of the lens array unit. A bottom angle of the light guide microstructure is defined as B, and a bottom length of the light guide microstructure is defined as P. The bottom angle B and the bottom length P of the light guide microstructure satisfies following conditions: (i) 15.5 degrees?B?83.5 degrees; and (ii) 10 micrometers?P?2,000 micrometers, such that an oblique viewing angle of the stereoscopic image display device falls within a range from 10 degrees to 60 degrees.Type: GrantFiled: September 6, 2021Date of Patent: February 7, 2023Assignee: Lixel Inc.Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang, Hsin-You Hou
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Publication number: 20230005404Abstract: In some examples, an electronic device comprises a voltage supply circuit to provide a reference voltage usable to discharge pixels in a display device; and a scaler circuit coupled to the voltage supply circuit. The scaler circuit is to buffer first and second frames and dynamically control the voltage supply circuit to modify the reference voltage based on a frequency of the first frame differing from a frequency of the second frame.Type: ApplicationFiled: June 30, 2021Publication date: January 5, 2023Inventors: Yi-Fan LIN, Kai-Chieh CHANG, Chang-Chih YEH
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Patent number: 11545062Abstract: In some examples, an electronic device comprises a voltage supply circuit to provide a reference voltage usable to discharge pixels in a display device; and a scaler circuit coupled to the voltage supply circuit. The scaler circuit is to buffer first and second frames and dynamically control the voltage supply circuit to modify the reference voltage based on a frequency of the first frame differing from a frequency of the second frame.Type: GrantFiled: June 30, 2021Date of Patent: January 3, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yi-Fan Lin, Kai-Chieh Chang, Chang-Chih Yeh
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Publication number: 20220377310Abstract: A stereoscopic image display device includes a flat panel display unit, a lens array unit, and a light guide structure unit. The light guide structure unit includes a light guide microstructure. The light guide microstructure is disposed on a side of the lens array unit. A bottom angle of the light guide microstructure is defined as B, and a bottom length of the light guide microstructure is defined as P. The bottom angle B and the bottom length P of the light guide microstructure satisfies following conditions: (i) 15.5 degrees?B?83.5 degrees; and (ii) 10 micrometers?P?2,000 micrometers, such that an oblique viewing angle of the stereoscopic image display device falls within a range from 10 degrees to 60 degrees.Type: ApplicationFiled: September 6, 2021Publication date: November 24, 2022Inventors: CHUN-HSIANG YANG, CHIH-HUNG TING, KAI-CHIEH CHANG, HSIN-YOU HOU
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Publication number: 20220357676Abstract: A reticle is pre-heated prior to an exposure operation of a semiconductor substrate lot to reduce substrate to substrate temperature variations of the reticle in the exposure operation. The reticle may be pre-heated while being stored in a reticle storage slot, while being transferred from the reticle storage slot to a reticle stage of an exposure tool, and/or in another location prior to being secured to the reticle stage for the exposure operation. In this way, the reduction in temperature variation of the reticle in the exposure operation provided by pre-heating the reticle may reduce overlay deltas and misalignment for the semiconductor substrates that are processed in the exposure operation. This increases overlay performance, increases yield of the exposure tool, and increases semiconductor device quality.Type: ApplicationFiled: August 27, 2021Publication date: November 10, 2022Inventors: Kai-Chieh CHANG, Kai-Fa HO, Li-Jui CHEN, Heng-Hsin LIU
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Publication number: 20220360762Abstract: A stereoscopic image display device capable of reducing grid visual effect includes a flat display unit, a light source unit disposed on a side of the flat display unit, and a lens array unit disposed on another side of the flat display unit. A light source provided by the light source unit satisfies an optical characteristic as follows: an attenuation amplitude of a luminance of the light source before entering the lens array unit being not greater than 65% within a divergence angle of a light field system of the stereoscopic image display device, thereby reducing the grid visual effect of a stereo image generated by the stereoscopic image display device.Type: ApplicationFiled: August 17, 2021Publication date: November 10, 2022Inventors: CHUN-HSIANG YANG, CHIH-HUNG TING, KAI-CHIEH CHANG, HSIN-YOU HOU, WEI-AN CHEN, KUAN-YU CHEN, CHIH-WEI SHIH
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Publication number: 20220350259Abstract: Some implementations described herein provide an exposure tool and associated methods of operation in which a scanner control system generates a scanner route for an exposure recipe such that the distance traveled by a substrate stage of the exposure tool along the scanner route is reduced and/or optimized for non-exposure fields on a semiconductor substrate. In this way, the scanner control system increases the productivity of the exposure tool, reduces processing times of the exposure tool, and increases yield in a semiconductor fabrication facility in which the exposure tool is included.Type: ApplicationFiled: August 27, 2021Publication date: November 3, 2022Inventors: Kai-Chieh CHANG, Kai-Fa HO, Li-Jui CHEN, Heng-Hsin LIU