Patents Assigned to National Chiao Tung University
  • Patent number: 11367615
    Abstract: A method of fabricating transistors with short gate length by two-step photolithography is provided. This method utilizes the two-step photolithography by a stepper as well as controlling a first exposed position and a second exposed position to change the gate length.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: June 21, 2022
    Assignee: National Chiao Tung University
    Inventors: Yi Chang, Yueh-Chin Lin, Po-Sheng Chang
  • Patent number: 11360206
    Abstract: The present invention provides a detection device and a method with simplified computing manner A transmitter transmits detection signals to an environment to detect a target. At least a portion of the detection signals are reflected by the target to generate a plurality of reflection signals. A receiver comprises a plurality of receiving units. Each of the receiving units receives the reflection signals to generate a receiving signal. A processing module connected to the receiver includes a conversion unit, an integration unit and a computing unit. The conversion unit converts the receiving signals into transformation signals by a time-domain to frequency-domain transformation. The integration unit integrates the transformation signals into a first integration signal and a second integration signal. The computing unit decomposes the first integration signal and the second integration signal to 1D arrays.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: June 14, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Ta-Sung Lee, Kuan-Hen Lin, Yu-Chien Lin, Yun-Han Pan
  • Patent number: 11346019
    Abstract: A quasi-single-crystal film and its manufacturing method thereof are provided, in which a metal film having a preferred orientation of <111> on its surface is subjected to a mechanical stretching force, such that the crystal grains thereof are able to form in a much more orderly arrangement, and a quasi-single-crystal film having preferred orientations on three axes can be obtained. The proposed quasi-single-crystal film has preferred orientations of <211> and <110> on its stretching direction and a direction that is perpendicular to the stretching direction, respectively, and retains a preferred orientation of <111> on its surface. By employing the present invention, it is advantageous of manufacturing large-area quasi single crystal films having high anisotropy as well as growing two dimensional materials or developing of other anisotropic feature structures.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: May 31, 2022
    Assignee: National Chiao Tung University
    Inventors: Chih Chen, Yu-Jin Li
  • Patent number: 11349045
    Abstract: A light emitting diode device with flip-chip structure includes a transparent protective substrate, a transparent conductor layer, a glue layer, a group III-V stack layer, a first conductivity metal electrode, a second conductivity metal electrode and an insulating layer. The transparent conductor layer is formed on the transparent protective substrate. The glue layer bonds the transparent protective substrate and the transparent conductor layer. The group III-V stack layer and the first conductivity metal electrode are respectively formed on a first portion and a second portion of the transparent conductor layer. The second conductivity metal electrode is formed on a portion of the group III-V stack layer. The insulating layer covers exposed portions of the transparent conductor layer and the group III-V stack layer, and the insulating layer further covers portions of the first and second conductivity metal electrodes, so as to expose the first and second conductivity metal electrodes.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 31, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Ray-Hua Horng, Ken-Yen Chen, Huan-Yu Chien
  • Patent number: 11342417
    Abstract: A structure of trench transistors includes the following elements. A substrate serves as a drain of the structure of trench transistors. An epitaxial layer is disposed on the substrate. A plurality of trenches are disposed in the epitaxial layer. A plurality of gate insulator layers are respectively disposed on the inner surfaces of the trenches. A plurality of gates are respectively disposed on the gate insulator layers. A plurality of first base regions are respectively disposed in the epitaxial layer between the adjacent trenches, and have a first depth from the top surface of the epitaxial layer. A plurality of second base regions are respectively disposed in the epitaxial layer adjacent to the sidewalls of the trenches, and each has a second depth from the bottom surface of the first base region. A plurality of sources are respectively disposed in the first base region beside the sidewalls of the trenches.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 24, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Bing-Yue Tsui, Fang-Hsin Lu
  • Patent number: 11343360
    Abstract: The present disclosure provides packet aggregation and disaggregation methods. In the packet aggregation methods, the protocol-independent packet processor (P4) switch stores plural message headers of plural packets in the ring buffer. When the plural message headers stored in the ring buffer reach a pre-defined amount of data, the P4 switch replaces the first flag header in the current packet with a second flag header so as to form a work packet. The egress pipeline of the P4 switch recirculates the work packet repeatedly, whenever it receives a work packet, a message header is extracted from a plurality of message headers in the ring buffer and added to the working packet for packet aggregation.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 24, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Shie-Yuan Wang, Jun-Yi Li, Yi-Bing Lin
  • Patent number: 11342179
    Abstract: A semiconductor structure having a Si substrate heterointegrated with GaN and a method for fabricating the same is disclosed. The method uses a (100) silicon substrate to fabricate a hundred nanometer scale hole and uses wet etching to etch the silicon substrate, thereby exposing the (111) crystal surface of the silicon substrate. The (111) crystal surface is used as a nucleating crystal surface of an AlN buffer layer and GaN. When GaN is grown, silane is reacted with GaN to adjust the concentration of doping silicon atoms into GaN, thereby forming a semiconductor structure having a Si substrate heterointegrated with GaN.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: May 24, 2022
    Assignee: National Chiao Tung University
    Inventors: Edward Yi Chang, Chieh-Hsi Chuang, Jessie Lin
  • Publication number: 20220148923
    Abstract: A method for increasing an oxide thickness at trench corner of an UMOSFET is provided, comprising providing an N-type substrate, and forming an N-type drift region, N-type and P-type heavily doped regions and P-type body therein. A trench is defined through lithography, and a pad oxide is formed along the trench through oxidation or deposition process. An oxidation barrier is formed upon the pad oxide. A thermal oxidation process is employed, so a corner oxide is effectively formed at the trench corner. After removing the pad oxide and oxidation barrier, various back-end processes are carried out to complete the transistor structure. The invention is aimed to increase oxide thickness near the trench bottom, and can be applied to high voltage devices, such as SiC.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 12, 2022
    Applicant: National Chiao Tung University
    Inventors: Bing-Yue Tsui, Fang-Hsin Lu, Yi-Ting Shih
  • Patent number: 11322398
    Abstract: A process for making an interconnect of a group III-V semiconductor device includes the steps of applying a positive photoresist layer and an image-reversible photoresist layer, subjecting the image-reversible photoresist and positive photoresist layers to patternwise exposure, subjecting the image-reversible photoresist layer to image reversal bake, subjecting the image-reversible photoresist and positive photoresist layers to flood exposure, subjecting the image-reversible photoresist and positive photoresist layers to development, depositing a diffusion barrier layer, depositing a copper layer, and removing the image-reversible photoresist and positive photoresist layers.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 3, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Edward-Yi Chang, Yueh-Chin Lin, Ming-Yen Tsai, Po-Sheng Chang
  • Patent number: 11315350
    Abstract: A method for assessing driver fatigue is implemented by a processor and includes steps of: based on images of a driver captured by an image capturing device, obtaining an entry of physiological information that indicates a physiological state of the driver; based on one of the images of the driver, obtaining an entry of facial expression information that indicates an emotional state of the driver; based on one of the images of the driver, obtaining an entry of behavioral information that indicates driver behavior of the driver; and based on the entry of physiological information, the entry of facial expression information and the entry of behavioral information, obtaining a fatigue score that indicates a level of fatigue of the driver.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: April 26, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Bing-Fei Wu, Kuan-Hung Chen, Po-Wei Huang, Yin-Cheng Tsai
  • Patent number: 11317409
    Abstract: A method for allocating communication network resources assigns beam to multiple items of user equipment based on beam-closed manner, and allocates the beam to the item of user equipment with the smallest value if more than one item of the user equipment is assigned to the same beam Then, the method uses a rate control to the multiple items of user equipment according to rate closure manner, and determines whether all items of user equipment is assigned to the beam. Hence, the beam is emitted by the base station and the direction of the user ability align for efficient data transfer.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 26, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Kai-Ten Feng, Chun-Hao Fang
  • Patent number: 11309980
    Abstract: A system for synthesizing signal of user equipment and a method thereof are provided. The system includes a physical channel modeler and a physical channel training module. The physical channel modeler receives geo information of a field under test of and a sparse real physical field channel feature to build a physical channel model. The physical channel modeler estimates a plurality of predefined positions of the geo information to obtain a plurality of simulated physical field channel features corresponding to the predefined positions. The physical channel training module receives and performs training on the geo information, the sparse real physical field channel feature and the simulated physical field channel features by using an AI algorithm to perform an inference of a fully real physical field channel feature.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 19, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: En Cheng Liou, Ta-Sung Lee, Chia-Hung Lin, Yu-Chien Lin
  • Patent number: 11306363
    Abstract: A microRNA (miRNA) expression signature for predicting triple-negative breast cancer (TNBC) recurrence is provided. The miRNA expression signature consists essentially of hsa-miR-139-5p, hsa-miR-10b-5p, hsa-miR-486-5p, hsa-miR-455-3p, hsa-miR-107, hsa-miR-146b-5p, hsa-miR-324-5p, and hsa-miR-20a-5p.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: April 19, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Kuang-Wen Liao, Hsien-Da Huang, Hsiao-Chin Hong, Cheng-Hsun Chuang
  • Patent number: 11302419
    Abstract: A method for DNA sequence alignment is proposed to include steps of: generating multiple strings by acquiring foremost k number of suffixes corresponding to a reference DNA sequence; grouping the strings into multiple string groups; sorting the strings in each of the string groups to generate sorting results; obtaining sorted suffixes and a suffix array based on the sorting results; establishing FM-index data based on the sorted suffixes and the suffix array; and performing DNA sequence alignment on a target string based on the FM-index data to obtain an alignment result.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 12, 2022
    Assignees: National Chiao Tung University, National Taiwan University
    Inventors: Jui-Hung Hung, Chia-Hsiang Yang, Yi-Chung Wu
  • Patent number: 11293459
    Abstract: A fan device including high voltage power source, conductive blade, first electrode and a resistance device is provided. Connecting side of the conductive blade is connected to first electric contact of the high voltage power source, and the conductive blade further includes a vibration side, wherein the conductive blade is extended from the connecting side to the vibration side along a first direction. The first electrode electrically connected to the second electric contact of the high voltage power source. The first electrode is disposed on a side of the vibration side of the conductive blade, and located in the vibrating range of the vibration side. The resistance device is connected between the conductive blade and the second electric contact in series.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 5, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Yeng-Yung Tsui, Chi-Chuan Wang, Ting-Kai Wei, Hsueh-Han Chin
  • Patent number: 11285401
    Abstract: An atmospheric water generator for extracting water droplets from ambient air includes an insulating substrate, a plurality of electrode film units, and a liquid crystal/polymer composite film. Each of surface regions of the liquid crystal/polymer composite film has a plurality of liquid crystal molecules each having a hydrophilic functional group and a hydrophobic moiety. Each of the surface regions normally has one of hydrophilic and hydrophobic properties. When a voltage is applied to one of the electrode film units, the respective surface region is switched to have the other one of hydrophilic and hydrophobic properties, to thereby allow the water droplets condensed from the ambient air to move on the surface regions.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: March 29, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Yi-Hsin Lin, Chia-Ming Chang
  • Patent number: 11286453
    Abstract: Provided is a continuous microalgae culture module, including an outdoor culture unit, a high-density culture unit, a pigment induced unit, and a harvesting unit. A method of culturing microalgae containing macular pigment is also provided, including sequentially culturing microalgae with medium in the outdoor culture unit and the high-density culture unit, producing macular pigment in the pigment induced unit through different light irradiation, and collecting the microalgal biomass containing macular pigment in the harvesting unit.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 29, 2022
    Assignee: National Chiao Tung University
    Inventors: Chih-Sheng Lin, Chiu-Mei Kuo, Yi-Chun Yang, Wen-Xin Zhang
  • Patent number: 11287303
    Abstract: The present invention relates to a flow rate measuring method comprising: establishing a database which includes a plurality of flow profiles; measuring the flow in a flow field using a plurality of transducers wherein in between every two transducers there exists an acoustic path which indicates the flow speed of the flow between the two transducers, and a feature map can be derived from the flow speeds; comparing the feature map with the database; selecting a matching flow profile from the flow profiles wherein the matching flow profile has a plurality of weighting functions corresponding to the acoustic paths; and calibrating the flow speed using the weighting functions.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: March 29, 2022
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Chi-Chuan Wang, Tran Ngoc Tan
  • Patent number: 11269052
    Abstract: A signal processing method is provided. First, at least one transmitted signal is output to at least one target, and the target reflects at least one reflected signal to receiving antennas, which then generate receiving signals upon receipt of the reflected signal. Next, the transmitted signal and each receiving signal are processed to generate processing signals. The processing signals are arranged in a form of matrix, to generate a channel coefficient matrix having M×N channel coefficient matrix blocks. Next, the channel coefficient matrix is divided into Ndivide×Mdivide secondary channel coefficient matrices, which are then substituted into a snapshot vector matrix equation to generate a snapshot vector matrix for calculating an angle of the target. The signal processing method can establish an optimal secondary channel coefficient matrix arrangement by using a special signal preprocessing manner, to improve the resolution and accuracy of the estimated angle parameter of the target.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 8, 2022
    Assignee: National Chiao Tung University
    Inventors: Ta-Sung Lee, Yu-Chien Lin, Yun-Han Pan
  • Patent number: 11271109
    Abstract: A silicon metal-oxide-semiconductor field effect transistor with a wide-bandgap III-V compound semiconductor drain and a method for fabricating the same are disclosed. The method fabricates a hundred nanometer-scale hole in a (100) silicon substrate to expose the (111) facet of the silicon substrate, which favors to use selective area growth to form lattice matched III-V materials with high quality.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 8, 2022
    Assignee: National Chiao Tung University
    Inventors: Edward Yi Chang, Mau-Chung Frank Chang, Chieh-Hsi Chuang, Jessie Lin