Patents by Inventor Po-Chung CHANG
Po-Chung 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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Patent number: 11997778Abstract: A method includes following steps. A photoresist-coated substrate is received to an extreme ultraviolet (EUV) tool. An EUV radiation is directed from a radiation source onto the photoresist-coated substrate, wherein the EUV radiation is generated by an excitation laser hitting a plurality of target droplets ejected from a first droplet generator. The first droplet generator is replaced with a second droplet generator at a temperature not lower than about 150° C.Type: GrantFiled: December 9, 2022Date of Patent: May 28, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shih-Yu Tu, Han-Lung Chang, Hsiao-Lun Chang, Li-Jui Chen, Po-Chung Cheng
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Patent number: 11982944Abstract: A method of lithography process is provided. The method includes forming a conductive layer over a reticle. The method includes applying ionized particles to the reticle by a discharging device. The method includes forming a photoresist layer over a semiconductor substrate. The method includes securing the semiconductor substrate by a wafer electrostatic-clamp. The method also includes patterning the photoresist layer by emitting radiation from a radiation source via the reticle.Type: GrantFiled: May 31, 2023Date of Patent: May 14, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hsiao-Lun Chang, Chueh-Chi Kuo, Tsung-Yen Lee, Tzung-Chi Fu, Li-Jui Chen, Po-Chung Cheng, Che-Chang Hsu
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Patent number: 11983475Abstract: A semiconductor device includes: M*1st conductors in a first layer of metallization (M*1st layer) and being aligned correspondingly along different corresponding ones of alpha tracks and representing corresponding inputs of a cell region in the semiconductor device; and M*2nd conductors in a second layer of metallization (M*2nd layer) aligned correspondingly along beta tracks, and the M*2nd conductors including at least one power grid (PG) segment and one or more of an output pin or a routing segment; and each of first and second ones of the input pins having a length sufficient to accommodate at most two access points; each of the access points of the first and second input pins being aligned to a corresponding different one of first to fourth beta tracks; and the PG segment being aligned with one of the first to fourth beta tracks.Type: GrantFiled: February 7, 2023Date of Patent: May 14, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Pin-Dai Sue, Po-Hsiang Huang, Fong-Yuan Chang, Chi-Yu Lu, Sheng-Hsiung Chen, Chin-Chou Liu, Lee-Chung Lu, Yen-Hung Lin, Li-Chun Tien, Yi-Kan Cheng
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Patent number: 11979971Abstract: An extreme ultra violet (EUV) radiation source apparatus includes a collector mirror, a target droplet generator for generating a tin (Sn) droplet, a rotatable debris collection device, one or more coils for generating an inductively coupled plasma (ICP), a gas inlet for providing a source gas for the ICP, and a chamber enclosing at least the collector mirror and the rotatable debris collection device. The gas inlet and the one or more coils are configured such that the ICP is spaced apart from the collector mirror.Type: GrantFiled: April 10, 2019Date of Patent: May 7, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yen-Shuo Su, Chun-Lin Chang, Han-Lung Chang, Li-Jui Chen, Po-Chung Cheng
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Patent number: 11935894Abstract: An integrated circuit device includes a device layer having devices spaced in accordance with a predetermined device pitch, a first metal interconnection layer disposed above the device layer and coupled to the device layer, and a second metal interconnection layer disposed above the first metal interconnection layer and coupled to the first metal interconnection layer through a first via layer. The second metal interconnection layer has metal lines spaced in accordance with a predetermined metal line pitch, and a ratio of the predetermined metal line pitch to predetermined device pitch is less than 1.Type: GrantFiled: November 4, 2022Date of Patent: March 19, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Fong-yuan Chang, Chun-Chen Chen, Po-Hsiang Huang, Lee-Chung Lu, Chung-Te Lin, Jerry Chang Jui Kao, Sheng-Hsiung Chen, Chin-Chou Liu
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Publication number: 20240071865Abstract: Packaged semiconductor devices including high-thermal conductivity molding compounds and methods of forming the same are disclosed. In an embodiment, a semiconductor device includes a first redistribution structure; a first die over and electrically coupled to the first redistribution structure; a first through via over and electrically coupled to the first redistribution structure; an insulation layer extending along the first redistribution structure, the first die, and the first through via; and an encapsulant over the insulation layer, the encapsulant surrounding portions of the first through via and the first die, the encapsulant including conductive fillers at a concentration ranging from 70% to about 95% by volume.Type: ApplicationFiled: November 1, 2023Publication date: February 29, 2024Inventors: Xinyu Bao, Lee-Chung Lu, Jyh Chwen Frank Lee, Fong-Yuan Chang, Sam Vaziri, Po-Hsiang Huang
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Patent number: 10289593Abstract: A hot swap management device includes a bus buffer, a hot swap switch, and a controller. The bus buffer is selectively coupled to a host system management bus of a server. The hot swap switch is coupled to the bus buffer and a hardware expansion device. The controller is coupled to the bus buffer and the hot swap switch. When the hot swap management device is coupled to a board system management bus of the server, the controller assigns a hardware address to the bus buffer. A computational unit of the server controls the hardware expansion device through the host system management bus according to the hardware address.Type: GrantFiled: January 7, 2018Date of Patent: May 14, 2019Assignees: Inventec (Pudong) Technology Corp., Inventec CorporationInventor: Po-Chung Chang
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Publication number: 20190121770Abstract: A hot swap management device includes a bus buffer, a hot swap switch, and a controller. The bus buffer is selectively coupled to a host system management bus of a server. The hot swap switch is coupled to the bus buffer and a hardware expansion device. The controller is coupled to the bus buffer and the hot swap switch. When the hot swap management device is coupled to a board system management bus of the server, the controller assigns a hardware address to the bus buffer. A computational unit of the server controls the hardware expansion device through the host system management bus according to the hardware address.Type: ApplicationFiled: January 7, 2018Publication date: April 25, 2019Inventor: Po-Chung Chang
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Patent number: 10122685Abstract: A method for automatically establishing a wireless connection, a gateway device and a client device for internet of things (IoT) using the same are provided. According to the provided method, SSID of the gateway device can be composed of an encrypted access password and an index, so that the client device may identify the gateway device to be connected according to the index within the SSID string and acquire the encrypted access password from the SSID string. Therefore, the client device can decrypt the encrypted access password. Accordingly, the wireless connection between the client device and the gateway device can be automatically established since the client device acquires the access password from the SSID of the gateway device.Type: GrantFiled: December 3, 2015Date of Patent: November 6, 2018Assignees: Tatung Company, TATUNG UNIVERSITYInventors: Fu-Chiung Cheng, Po-Chung Chang, Tai-Jee Pan
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Patent number: 10069793Abstract: An identity verification method, an IoT gateway device, and a verification gateway device using the same are provided. According to the provided method, the IoT gateway device firstly establishes a look-up table including a valid MAC address list and a valid RSSI range of at least one valid client device. When the IoT gateway device receives the connection request sent from the client device, the IoT gateway device may obtain the MAC address and a RSSI value of the client device according to the connection request and compare the received MAC address and the received RSSI value with the valid MAC address list and the valid RSSI range, so as to determine whether the client device is the valid client device.Type: GrantFiled: December 3, 2015Date of Patent: September 4, 2018Assignees: Tatung Company, TATUNG UNIVERSITYInventors: Fu-Chiung Cheng, Po-Chung Chang, Tai-Jee Pan
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Publication number: 20170063823Abstract: An identity verification method, an IoT gateway device, and a verification gateway device using the same are provided. According to the provided method, the IoT gateway device firstly establishes a look-up table including a valid MAC address list and a valid RSSI range of at least one valid client device. When the IoT gateway device receives the connection request sent from the client device, the IoT gateway device may obtain the MAC address and a RSSI value of the client device according to the connection request and compare the received MAC address and the received RSSI value with the valid MAC address list and the valid RSSI range, so as to determine whether the client device is the valid client device.Type: ApplicationFiled: December 3, 2015Publication date: March 2, 2017Inventors: Fu-Chiung Cheng, Po-Chung Chang, Tai-Jee Pan
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Publication number: 20170063807Abstract: A method for automatically establishing a wireless connection, a gateway device and a client device for internet of things (IoT) using the same are provided. According to the provided method, SSID of the gateway device can be composed of an encrypted access password and an index, so that the client device may identify the gateway device to be connected according to the index within the SSID string and acquire the encrypted access password from the SSID string. Therefore, the client device can decrypt the encrypted access password. Accordingly, the wireless connection between the client device and the gateway device can be automatically established since the client device acquires the access password from the SSID of the gateway device.Type: ApplicationFiled: December 3, 2015Publication date: March 2, 2017Inventors: Fu-Chiung Cheng, Po-Chung Chang, Tai-Jee Pan
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Patent number: 8832347Abstract: An automatic serial signal detecting and transceiving device and related system and method are provided for detecting whether a connected initiator unit is using an inter-integrated circuit (I2C) interface protocol or a serial general purpose input/output (SGPIO) interface protocol. The device includes an input interface, connected to the initiator unit, and a control unit. A load pin of the input interface services either the SLoad signal line of an SGPIO bus, or the Reset signal line of an I2C bus. As the device is connected to different initiators, the control unit monitors the load pin for a trigger signal, thereby automatically detecting the interface protocol in use, and processes and transceives data in accordance with the detected interface protocol. The control unit also controls a light-emitting diode (LED) based on the detected interface protocol and data transmitted in accordance with the detected interface protocol.Type: GrantFiled: January 4, 2012Date of Patent: September 9, 2014Assignee: inventec CorporationInventor: Po-Chung Chang
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Publication number: 20120324131Abstract: An automatic serial signal detecting and transceiving device and related system and method are provided for detecting whether a connected initiator unit is using an inter-integrated circuit (I2C) interface protocol or a serial general purpose input/output (SGPIO) interface protocol. The device includes an input interface, connected to the initiator unit, and a control unit. A load pin of the input interface services either the SLoad signal line of an SGPIO bus, or the Reset signal line of an I2C bus. As the device is connected to different initiators, the control unit monitors the load pin for a trigger signal, thereby automatically detecting the interface protocol in use, and processes and transceives data in accordance with the detected interface protocol. The control unit also controls a light-emitting diode (LED) based on the detected interface protocol and data transmitted in accordance with the detected interface protocol.Type: ApplicationFiled: January 4, 2012Publication date: December 20, 2012Applicant: INVENTEC CORPORATIONInventor: Po-Chung Chang
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Publication number: 20120133520Abstract: A computer system displays and controls the hard disk condition. The computer system includes a host bus adapter which detects the status of the hard disk, and the status light gives light to display the hard disk status. The baseboard management controller and the host bus adapters are set on the motherboards, in which the baseboard management controller monitors and records the status of the hard disk. The microcontroller is set on the hard disk backplane for decoding the message from the host bus adapter in order to control the displaying of the status light.Type: ApplicationFiled: December 29, 2010Publication date: May 31, 2012Applicant: INVENTEC CORPORATIONInventors: Po-Chung CHANG, Chen-Pin LEE, Huang-Ching WANG