Patents by Inventor Kang Hu

Kang Hu 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).

  • Publication number: 20230207359
    Abstract: A load port receives a wafer carrier. An equipment front end module (EFEM) transfers semiconductor wafers to and from the wafer carrier via an access opening of a housing of the EFEM, and also transfers wafers to and from a semiconductor processing or characterization tool. A gas flow device disposed inside the housing of the EFEM is connected to receive a low humidity gas having relative humidity of 10% or less, and is positioned to flow the received low humidity gas across the access opening. A saturated pressure layer of the gas flow device has a permeability for the low humidity gas that increases with increasing distance from a gas inlet edge of the saturated pressure layer, for example due to holes of varying diameter and/or density passing through the saturated pressure layer. A filter layer of the gas flow device uniformizes the gas exiting the saturated pressure layer.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 29, 2023
    Inventors: Ren-Hau Wu, Cheng-Kang Hu, Yi-Fam Shiu, Cheng-Lung Wu, Hsu-Shui Liu
  • Patent number: 11670524
    Abstract: An apparatus and method for debonding a pair of bonded wafers are disclosed herein. In some embodiments, the debonding apparatus, comprises: a wafer chuck having a preset maximum lateral dimension and configured to rotate the pair of bonded wafers attached to a top surface of the wafer chuck, a pair of circular plate separating blades including a first separating blade and a second separating blade arranged diametrically opposite to each other at edges of the pair of bonded wafers, wherein the first and the second separating blades are inserted between a first and a second wafers of the pair of bonded wafers, and at least two pulling heads configured to pull the second wafer upwardly so as to debond the second wafer from the first wafer.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: June 6, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng-Fei Yu, Chang-Chen Tsao, Ting-Yau Shiu, Cheng-Kang Hu, Hsu-Shui Liu, Jiun-Rong Pai
  • Patent number: 11651981
    Abstract: A system and method for defect detection in a hole array on a substrate is disclosed herein. In one embodiment, a method for defect detection in a hole array on a substrate, includes: scanning a substrate surface using at least one optical detector, generating at least one image of the substrate surface; and analyzing the at least one image to detect defects in the hole array on the substrate surface based on a set of predetermined criteria.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: May 16, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jiao-Rou Liao, Sheng-Hsiang Chuang, Cheng-Kang Hu, Hsu-Shui Liu, Jiun-Rong Pai, Shou-Wen Kuo
  • Publication number: 20230068375
    Abstract: A method for detecting a three-dimensional object in a two-dimensional image includes: inputting the two-dimensional image into an object detection model, and obtaining a resulting detection depth dataset; obtaining, based on the detection depth dataset, coordinate sets of a number of points-of-interest each associated with a to-be-detected object in a 3D camera centered coordinate system; and converting the coordinate sets of the number of points-of-interest in the 3D camera centered coordinate system into a number of coordinate sets in a 3D global coordinate system. Embodiments of this disclosure may be utilized in the field of self-driving cars with roadside traffic cameras.
    Type: Application
    Filed: February 23, 2022
    Publication date: March 2, 2023
    Inventors: Cheng-Chung HSU, Chih-Kang HU, Chi-Yen CHENG, Chia-Wen HO, Jin-De SONG
  • Publication number: 20220317668
    Abstract: A cooling controller receives, from one or more sensors, wafer information associated with a wafer. The cooling controller determines a pattern mask area for the wafer based on the wafer information. The cooling controller determines a cooling time for the wafer based on the pattern mask area. The cooling controller causes a cooling plate to cool the wafer for a time duration equal to the cooling time. Determining the cooling time for a wafer based on a pattern mask area provides stable and consistent wafer temperatures for wafers having different mask and layout properties, which reduces mask overlay variation and increases wafer yield.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Yung-Yao LEE, Cheng-Kang HU, Jui-Chun PENG, Hsu-Shui LIU
  • Publication number: 20220292667
    Abstract: An image analysis device may align an image to determine a position of a wafer within the image. The wafer may include a plurality of wafer bumps. The image analysis device may mask, based on the position of the wafer, the image to obtain an image of a portion of the wafer. The image analysis device may binarize the image of the portion of the wafer to create a binarized image of the portion of the wafer. The image analysis device may determine a bump pattern, associated with the plurality of wafer bumps, based on the binarized image of the portion of the wafer. The image analysis device may perform a defect analysis of the determined bump pattern. The defect analysis may be associated with detecting regions of the portion of the wafer in which one or more wafer bumps have abnormal bump heights.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Inventors: Chih-Lieh CHEN, Cheng-Kang HU, Cheng-Lung WU, Jiun-Rong PAI
  • Patent number: 11423526
    Abstract: An image analysis device may align an image to determine a position of a wafer within the image. The wafer may include a plurality of wafer bumps. The image analysis device may mask, based on the position of the wafer, the image to obtain an image of a portion of the wafer. The image analysis device may binarize the image of the portion of the wafer to create a binarized image of the portion of the wafer. The image analysis device may determine a bump pattern, associated with the plurality of wafer bumps, based on the binarized image of the portion of the wafer. The image analysis device may perform a defect analysis of the determined bump pattern. The defect analysis may be associated with detecting regions of the portion of the wafer in which one or more wafer bumps have abnormal bump heights.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 23, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Lieh Chen, Cheng-Kang Hu, Cheng-Lung Wu, Jiun-Rong Pai
  • Publication number: 20220261001
    Abstract: In an embodiment a system includes: an automated vehicle configured to traverse a first predetermined path; and a sensor system located on the automated vehicle, the sensor system configured to detect a vertical obstacle along the first predetermined path along one or two floorboards ahead of the automated vehicle, wherein the automated vehicle is configured to traverse a second predetermined path in response to detecting the vertical obstacle.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Inventors: Cheng-Kang HU, Cheng-Hung CHEN, Yan-Han CHEN, Feng-Kuang WU, Hsu-Shui LIU, Jiun-Rong PAI, Shou-Wen KUO
  • Publication number: 20220216075
    Abstract: An apparatus and an operating method for automated wafer carrier handling are provided. The operation method includes bring a base frame and an engaging mechanism of an automated wafer carrier handling apparatus into abutting contact with a top flange mounted on a wafer carrier to limit at least one degree of freedom of movement of the top flange, where the engaging mechanism is disposed on the base frame; transporting the wafer carrier to a destination location by the automated wafer carrier handling apparatus; and releasing the top flange mounted on the wafer carrier from the automated wafer carrier handling apparatus at the destination location.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ren-Hau Wu, Cheng-Lung Wu, Jiun-Rong Pai, Cheng-Kang Hu
  • Publication number: 20220156911
    Abstract: An image analysis device may align an image to determine a position of a wafer within the image. The wafer may include a plurality of wafer bumps. The image analysis device may mask, based on the position of the wafer, the image to obtain an image of a portion of the wafer. The image analysis device may binarize the image of the portion of the wafer to create a binarized image of the portion of the wafer. The image analysis device may determine a bump pattern, associated with the plurality of wafer bumps, based on the binarized image of the portion of the wafer. The image analysis device may perform a defect analysis of the determined bump pattern. The defect analysis may be associated with detecting regions of the portion of the wafer in which one or more wafer bumps have abnormal bump heights.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 19, 2022
    Inventors: Chih-Lieh CHEN, Cheng-Kang HU, Cheng-Lung WU, Jiun-Rong PAI
  • Patent number: 11334080
    Abstract: In an embodiment a system includes: an automated vehicle configured to traverse a first predetermined path; and a sensor system located on the automated vehicle, the sensor system configured to detect a vertical obstacle along the first predetermined path along one or two floorboards ahead of the automated vehicle, wherein the automated vehicle is configured to traverse a second predetermined path in response to detecting the vertical obstacle.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 17, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng-Kang Hu, Cheng-Hung Chen, Yan-Han Chen, Feng-Kuang Wu, Hsu-Shui Liu, Jiun-Rong Pai, Shou-Wen Kuo
  • Patent number: 11295973
    Abstract: An apparatus and an operating method for automated wafer carrier handling are provided. The apparatus includes a base frame and an engaging mechanism disposed on the base frame. The engaging mechanism includes a controller and an active expansion component moveably coupled to the base frame and controlled by the controller to perform a reciprocating movement relative to the base frame. The active expansion component is driven by the controller to pass through the base frame to be engaged with a top flange mounted on the wafer carrier.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: April 5, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ren-Hau Wu, Cheng-Lung Wu, Jiun-Rong Pai, Cheng-Kang Hu
  • Publication number: 20220059376
    Abstract: A system and method for defect detection in a hole array on a substrate is disclosed herein. In one embodiment, a method for defect detection in a hole array on a substrate, includes: scanning a substrate surface using at least one optical detector, generating at least one image of the substrate surface; and analyzing the at least one image to detect defects in the hole array on the substrate surface based on a set of predetermined criteria.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 24, 2022
    Inventors: Becky LIAO, Sheng-Hsiang CHUANG, Cheng-Kang HU, Hsu-Shui LIU, Jiun-Rong PAI, Shou-Wen KUO
  • Patent number: 11227175
    Abstract: A method for performing automatic license plate recognition includes: performing character detection on a to-be-processed image; when a number of character objects constituting characters of a license plate are detected, obtaining a representative point for each character object; calculating a pattern line with respect to the character objects; calculating a skew angle defined by the pattern line and a preset reference line; rotating each character object based on the skew angle to obtain an adjusted image; and performing character recognition on the adjusted image to obtain a recognized character for each character object.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: January 18, 2022
    Assignee: Merit Lilin Ent. Co., Ltd.
    Inventors: Cheng-Chung Hsu, Chih-Kang Hu, Chi-Yen Cheng, Hong-Wei Chao
  • Patent number: 11152238
    Abstract: In an embodiment, a system includes a profiler configured to detect variations along a surface of a semiconductor stage; and a jig configured to move the profiler along an axis over the semiconductor stage.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 19, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng-Kang Hu, Hsu-Shui Liu, Jiun-Rong Pai, Shou-Wen Kuo, Sheng-Hsiang Chuang, Cheng-Hung Chen
  • Patent number: 11120539
    Abstract: A method for scanning and analyzing a surface, the method comprising: receiving a piece of equipment with a target surface for inspection; receiving an input from a user; determining at least one scan parameter based on the user input; scanning the target surface using an optical detector in accordance with the at least one scan parameter; generating an image of the target surface; correcting the image of the target surface to remove at least one undesired feature to generate a corrected image based on the at least one scan parameter; and analyzing the corrected image to determine at least one geometric parameter of the target surface.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 14, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sheng-Hsiang Chuang, Jiao-Rou Liao, Cheng-Kang Hu, Shou-Wen Kuo, Jiun-Rong Pai, Hsu-Shui Liu
  • Publication number: 20210249282
    Abstract: An apparatus and an operating method for automated wafer carrier handling are provided. The apparatus includes a base frame and an engaging mechanism disposed on the base frame. The engaging mechanism includes a controller and an active expansion component moveably coupled to the base frame and controlled by the controller to perform a reciprocating movement relative to the base frame. The active expansion component is driven by the controller to pass through the base frame to be engaged with a top flange mounted on the wafer carrier.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 12, 2021
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ren-Hau Wu, Cheng-Lung Wu, Jiun-Rong Pai, Cheng-Kang Hu
  • Publication number: 20210242043
    Abstract: An apparatus and method for debonding a pair of bonded wafers are disclosed herein. In some embodiments, the debonding apparatus, comprises: a wafer chuck having a preset maximum lateral dimension and configured to rotate the pair of bonded wafers attached to a top surface of the wafer chuck, a pair of circular plate separating blades including a first separating blade and a second separating blade arranged diametrically opposite to each other at edges of the pair of bonded wafers, wherein the first and the second separating blades are inserted between a first and a second wafers of the pair of bonded wafers, and at least two pulling heads configured to pull the second wafer upwardly so as to debond the second wafer from the first wafer.
    Type: Application
    Filed: December 2, 2020
    Publication date: August 5, 2021
    Inventors: Cheng-Fei Yu, Chang-Chen TSAO, Ting-Yau Shiu, Cheng-Kang Hu, Hsu-Shui Liu, Jiun-Rong Pai
  • Patent number: 10971386
    Abstract: A method for positioning a mobile device relative to a stationary device in a semiconductor manufacturing environment is disclosed. The method includes detecting a target affixed to the stationary device at a target location, wherein the target location corresponds to a location of the target relative to a reference point on the stationary device, determining a first position coordinate offset value based upon detecting the target, and moving the mobile device, using the first position coordinate offset value, relative to train the mobile device to move relative to the stationary device for the stationary device to performing a semiconductor manufacturing operation.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 6, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Yan-Han Chen, Cheng-Kang Hu, Ren-Hau Wu, Cheng-Hung Chen, Feng-Kuang Wu, Hsu-Shui Liu, Jiun-Rong Pai, Shou-Wen Kuo
  • Publication number: 20210082718
    Abstract: A method for positioning a mobile device relative to a stationary device in a semiconductor manufacturing environment is disclosed. The method includes detecting a target affixed to the stationary device at a target location, wherein the target location corresponds to a location of the target relative to a reference point on the stationary device, determining a first position coordinate offset value based upon detecting the target, and moving the mobile device, using the first position coordinate offset value, relative to train the mobile device to move relative to the stationary device for the stationary device to performing a semiconductor manufacturing operation.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 18, 2021
    Inventors: Yan-Han CHEN, Cheng-Kang HU, Ren-Hau WU, Cheng-Hung CHEN, Feng-Kuang WU, Hsu-Shui LIU, Jiun-Rong PAI, Shou-Wen KUO