Patents by Inventor Mao-Lin Wu

Mao-Lin Wu 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).

  • Patent number: 11942377
    Abstract: A semiconductor device includes a semiconductor substrate; a plurality of channel regions, including a p-type channel region and an n-type channel region, disposed over the semiconductor substrate; and a gate structure. The gate structure includes a gate dielectric layer disposed over the plurality of channel regions and a work function metal (WFM) structure disposed over the gate dielectric layer. The WFM structure includes an n-type WFM layer over the n-type channel region and not over the p-type channel region and further includes a p-type WFM layer over both the n-type WFM layer and the p-type channel region. The gate structure further includes a fill metal layer disposed over the WFM structure and in direct contact with the p-type WFM layer.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: March 26, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Lung-Kun Chu, Mao-Lin Huang, Wei-Hao Wu, Kuo-Cheng Chiang
  • Patent number: 11927799
    Abstract: 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: Grant
    Filed: December 31, 2020
    Date of Patent: March 12, 2024
    Inventors: Po-Kuan Shen, Chun-Chiang Yen, Chiu-Lin Yu, Kai-Lun Han, Jenq-Yang Chang, Mao-Jen Wu, Chao-Chieh Hsu
  • Patent number: 10003160
    Abstract: An interface module coupled between a host device and a wireless device is disclosed. The interface module includes a connector, having a first part covered in a first case with a first depth and a second part covered in a second case with a second depth; and a control circuit coupled to the first part of the connector, for controlling data transmission between the host device and the wireless device; wherein the second case is made of a conductive material and which can be further covered by an absorptive material.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: June 19, 2018
    Assignee: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Ho-Chung Chen, Chia-Yu Hsieh, Li-Chun Yang
  • Publication number: 20170133796
    Abstract: An interface module coupled between a host device and a wireless device is disclosed. The interface module includes a connector, having a first part covered in a first case with a first depth and a second part covered in a second case with a second depth; and a control circuit coupled to the first part of the connector, for controlling data transmission between the host device and the wireless device; wherein the second case is made of a conductive material and which can be further covered by an absorptive material.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 11, 2017
    Inventors: Mao-Lin Wu, Ho-Chung Chen, Chia-Yu Hsieh, Li-Chun Yang
  • Patent number: 9632971
    Abstract: A method of handling transmission for a host in a data transmission system includes establishing a connection with a device of the data transmission system via a first frequency; receiving a negotiating information from the device; and re-establishing the connection with the device via a second frequency when the negotiating information reveals that the second frequency is available for the host to communicate with the device; wherein the second frequency is different than the first frequency.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 25, 2017
    Assignee: MEDIATEK INC.
    Inventors: Cheok Yan Goh, Yu-Hsun Chen, Mao-Lin Wu, Chih-Chieh Chou, Ching-Hwa Yu
  • Patent number: 9515387
    Abstract: A MIMO (Multi-Input Multi-Output) antenna includes a system ground plane, an antenna ground plane, an EBG (Electromagnetic Band-Gap) structure, a first antenna element, and a second antenna element. The antenna ground plane overlaps a first portion of the system ground plane. The EBG structure is formed on a second portion of the system ground plane. The first antenna element and the second antenna element are both disposed in proximity to the EBG structure, but substantially extend in different directions.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: December 6, 2016
    Assignee: MEDIATEK INC.
    Inventors: Kuo-Fong Hung, Ho-Chung Chen, Mao-Lin Wu, Chien-Chih Lee
  • Publication number: 20140241406
    Abstract: A wireless communications system co-located with an interface apparatus includes a radio subsystem. The radio subsystem includes a transmission circuit arranged for performing a radio transmission, and a reception circuit arranged for performing a radio reception when the interface apparatus operates in a first operational state. The interface apparatus operates in one of a plurality of operational states including the first operational state and a second operational state, and a power consumption of the interface apparatus in the first operational state is lower than a power consumption of the interface apparatus in the second operational state.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 28, 2014
    Applicant: Mediatek Inc.
    Inventors: Ching-Hwa Yu, Cheok Yan Goh, Yu-Hsun Chen, Horng-Bin Wang, Mao-Lin Wu, Chih-Chieh Chou, Tsung-Yueh Hsieh, I-Lin Hsieh
  • Publication number: 20140244872
    Abstract: A method of handling transmission for a host in a data transmission system includes establishing a connection with a device of the data transmission system via a first frequency; receiving a negotiating information from the device; and re-establishing the connection with the device via a second frequency when the negotiating information reveals that the second frequency is available for the host to communicate with the device; wherein the second frequency is different than the first frequency.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: Ralink Technology Corp.
    Inventors: Cheok Yan Goh, Yu-Hsun Chen, Mao-Lin Wu, Chih-Chieh Chou, Ching-Hwa Yu
  • Patent number: 8742990
    Abstract: A circular polarization antenna includes a substrate, a ground plane, a tuning stub, a feeding element, and a cavity structure. The substrate has a first surface and a second surface. The feeding element is disposed on the first surface of the substrate. The ground plane is disposed on the second surface of the substrate and has a hole. The tuning stub is disposed on the second surface of the substrate and connected to the edge of the hole. The cavity structure is connected to the ground plane and configured to reflect an electromagnetic wave.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: June 3, 2014
    Assignee: Mediatek Inc.
    Inventors: Kuo-Fong Hung, Shih-Wei Hsieh, Ho-Chung Chen, Mao-Lin Wu
  • Publication number: 20140134889
    Abstract: A universal serial bus (USB) receptacle includes a core part and a conducting layer. The core part of the USB receptacle has a plurality of signal pads on a first side of the core part. The conducting layer is disposed on a second side of the core part of the USB receptacle. The second side of the core part of the USB receptacle is opposite to the first side of the core part. An associated USB plug is also provided. The USB plug includes a core part and a conducting layer. The core part of the USB plug has a plurality of signal pads on a first side of the core part of the USB plug. The conducting layer is disposed on a second side of the core part. The second side of the core part of the USB plug is opposite to the first side of the core part.
    Type: Application
    Filed: June 13, 2013
    Publication date: May 15, 2014
    Applicant: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Ho-Chung Chen, Po-Sheng Kang, Chieh-Chao Liu, Chien-Chih Lee
  • Publication number: 20140049437
    Abstract: A MIMO (Multi-Input Multi-Output) antenna includes a system ground plane, an antenna ground plane, an EBG (Electromagnetic Band-Gap) structure, a first antenna element, and a second antenna element. The antenna ground plane overlaps a first portion of the system ground plane. The EBG structure is formed on a second portion of the system ground plane. The first antenna element and the second antenna element are both disposed in proximity to the EBG structure, but substantially extend in different directions.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Applicant: MEDIATEK INC.
    Inventors: Kuo-Fong HUNG, Ho-Chung CHEN, Mao-Lin WU, Chien-Chih LEE
  • Publication number: 20140022719
    Abstract: An interface module coupled between a host device and a wireless device is disclosed. The interface module includes a connector, having a first part covered in a first case with a first depth and a second part covered in a second case with a second depth; and a control circuit coupled to the first part of the connector, for controlling data transmission between the host device and the wireless device; wherein the second case is made of a conductive material and which can be further covered by an absorptive material.
    Type: Application
    Filed: October 25, 2012
    Publication date: January 23, 2014
    Applicant: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Ho-Chung Chen, Chia-Yu Hsieh, Li-Chun Yang
  • Publication number: 20130169494
    Abstract: A circular polarization antenna includes a substrate, a ground plane, a tuning stub, a feeding element, and a cavity structure. The substrate has a first surface and a second surface. The feeding element is disposed on the first surface of the substrate. The ground plane is disposed on the second surface of the substrate and has a hole. The tuning stub is disposed on the second surface of the substrate and connected to the edge of the hole. The cavity structure is connected to the ground plane and configured to reflect an electromagnetic wave.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: MEDIATEK INC.
    Inventors: Kuo-Fong Hung, Shih-Wei Hsieh, Ho-Chung Chen, Mao-Lin Wu
  • Publication number: 20100327952
    Abstract: An electronic system includes an integrated circuit, powered by a first voltage, with a first device provided therein; a detection device coupled to the first device to detect an output deviation of the first device attributed to process, voltage and temperature (PVT) effects; and a compensation device coupled to the detection device, adjusting the first voltage in response to the output deviation and outputting the first voltage to the integrated circuit to compensate for the PVT effects. The electronic system further comprises a conversion device, coupled between the detection device and the compensation device, to generate an indication signal corresponding to the output deviation for the compensation device to adjust the first voltage. In addition, the compensation device may compare and amplify a difference between a voltage level of the indication signal and a reference to linearly adjust the first voltage for compensating for the PVT effects.
    Type: Application
    Filed: September 8, 2010
    Publication date: December 30, 2010
    Applicant: Media Tek Inc.
    Inventors: Mao-Lin Wu, Chih-Hung Shen, Yu-Ping Ho
  • Patent number: 7812661
    Abstract: An electronic system includes an integrated circuit, powered by a first voltage, with a first device provided therein; a detection device coupled to the first device to detect an output deviation of the first device attributed to process, voltage and temperature (PVT) effects; and a compensation device coupled to the detection device, adjusting the first voltage in response to the output deviation and outputting the first voltage to the integrated circuit to compensate for the PVT effects. The electronic system further comprises a conversion device, coupled between the detection device and the compensation device, to generate an indication signal corresponding to the output deviation for the compensation device to adjust the first voltage. In addition, the compensation device may compare and amplify a difference between a voltage level of the indication signal and a reference to linearly adjust the first voltage for compensating for the PVT effects.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: October 12, 2010
    Assignee: Mediatek Inc.
    Inventors: Mao-Lin Wu, Chih-Hung Shen, Yu-Ping Ho
  • Publication number: 20100125689
    Abstract: The invention provides an electronic apparatus capable of receiving a first-type memory card or a second-type memory card. In one embodiment, the electronic apparatus comprises a socket, a controller circuit, and an interface circuit. The socket is coupled to the first-type memory card through a set of first pins and is coupled to the second-type memory card with a set of second pins. The controller circuit accesses the first-type memory card or the second-type memory card via a plurality of input/output (IO) pins, and determines which of the first-type memory card and the second-type memory card is inserted into the socket according to the voltage of a target IO pin selected from the IO pins. The interface circuit sets the voltage of the target pin to different values according to whether the first-type memory card or the second-type memory card is inserted into the socket.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Applicant: MEDIATEK INC.
    Inventors: Cheng Liang Chang, Tzu-Shiun Liu, Mao-Lin Wu, Wen Hua Wu, Shih-Hung Lin, You-Kuo Lin
  • Publication number: 20090187874
    Abstract: A circuit and a circuit design method are provided. The circuit operates between a first power source voltage and a ground voltage. The circuit comprises at least one low speed circuit path and at least one high speed circuit path. The low speed circuit path adjusts voltage level at the first power source voltage or the ground voltage. The low speed circuit path provides a first return path and isolates unwanted noise signals for a signal on the high speed circuit path.
    Type: Application
    Filed: January 17, 2008
    Publication date: July 23, 2009
    Applicant: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Shih-Hung Lin, Hua Wu, Che Yuan Jao, Ching-Chih Li, Sheng-Ming Chang
  • Publication number: 20090079492
    Abstract: An electronic system includes an integrated circuit, powered by a first voltage, with a first device provided therein; a detection device coupled to the first device to detect an output deviation of the first device attributed to process, voltage and temperature (PVT) effects; and a compensation device coupled to the detection device, adjusting the first voltage in response to the output deviation and outputting the first voltage to the integrated circuit to compensate for the PVT effects. The electronic system further comprises a conversion device, coupled between the detection device and the compensation device, to generate an indication signal corresponding to the output deviation for the compensation device to adjust the first voltage. In addition, the compensation device may compare and amplify a difference between a voltage level of the indication signal and a reference to linearly adjust the first voltage for compensating for the PVT effects.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Applicant: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Chih-Hung Shen, Yu-Ping Ho
  • Publication number: 20090066630
    Abstract: An image display system including a liquid crystal panel, a backlight, and a compensation device. The backlight emits light passing through the liquid crystal panel according to a control signal. The compensation device alters the liquid crystal orientation of the liquid crystal panel according to the intensity of light emitted from the backlight.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: MEDIATEK INC.
    Inventors: Mao-Lin Wu, Tzu-Shiun Liu