Patents by Inventor Chin-Ta Wu

Chin-Ta 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: 11961738
    Abstract: In a method of forming a pattern, a first pattern is formed over an underlying layer, the first pattern including main patterns and a lateral protrusion having a thickness of less than 25% of a thickness of the main patterns, a hard mask layer is formed over the first pattern, a planarization operation is performed to expose the first pattern without exposing the lateral protrusion, a hard mask pattern is formed by removing the first pattern while the lateral protrusion being covered by the hard mask layer, and the underlying layer is patterned using the hard mask pattern as an etching mask.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 16, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chin-Ta Chen, Hua-Tai Lin, Han-Wei Wu, Jiann-Yuan Huang
  • Publication number: 20240105518
    Abstract: A first group of semiconductor fins are over a first region of a substrate, the substrate includes a first stepped profile between two of the first group of semiconductor fins, and the first stepped profile comprises a first lower step, two first upper steps, and two first step rises extending from opposite sides of the first lower step to the first upper steps. A second group of semiconductor fins are over a second region of the substrate, the substrate includes a second stepped profile between two of the second group of semiconductor fins, and the second stepped profile comprises a second lower step, two second upper steps, and two second step rises extending from opposite sides of the second lower step to the second upper steps, in which the second upper steps are wider than the first upper steps in the cross-sectional view.
    Type: Application
    Filed: January 11, 2023
    Publication date: March 28, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chin-Ta CHEN, Han-Wei WU, Yuan-Hsiang LUNG, Hua-Tai LIN
  • Patent number: 11658046
    Abstract: Batch semiconductor packaging structures with back-deposited shielding layer and manufacturing method are provided. A grid having multiple frames is glued on an adhesive substrate. Multiple semiconductor devices respectively align with corresponding frames and are stuck on the adhesive substrate. Then a metal layer covers the semiconductor devices and the grid. A distance between four peripheries of a bottom of each semiconductor device and the corresponding frame is smaller than a distance between the bottom and the adhesive substrate, so that the a portion of the metal layer extended to the peripheries of the bottom is effectively reduced during forming the metal layer. After the semiconductor devices are picked up, no metal scrap is remined thereon. Therefore, the adhesive substrate does not need to form openings in advance and is reusable. The grid is also reusable so the manufacturing cost of the present invention is decreased.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 23, 2023
    Assignee: Powertech Technology Inc.
    Inventors: Shih-Chun Chen, Sheng-Tou Tseng, Kun-Chi Hsu, Chin-Ta Wu, Ting-Yeh Wu
  • Patent number: 11587808
    Abstract: A chip carrier device includes a frame, a chip support and a limiter. The chip support is disposed on the frame, and includes a supporting film for chips to be adhered thereto. A peripheral portion of the supporting film is attached to a surrounding frame part of the frame. A crossing portion of the supporting film passes through a center of the supporting film, and interconnects two opposite points of the peripheral portion. The supporting film is formed with through holes. The limiter includes a limiting part that interconnects two opposite points of the surrounding frame part, that is positioned corresponding to the crossing portion, and that is positioned on one side of the supporting film where the chips are to be arranged.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: February 21, 2023
    Assignee: Powertech Technology Inc.
    Inventors: Shih-Chun Chen, Sheng-Tou Tseng, Kun-Chi Hsu, Chin-Ta Wu, Ying-Lin Chen, Ting-Yeh Wu
  • Patent number: 11410945
    Abstract: A semiconductor package having a partial outer metal layer and packaging method thereof is disclosed. In the method, a specific packaging substrate or a specific positioning plate is used to package multiple semiconductor devices and a partial outer metal layer is quickly formed on an encapsulation of each semiconductor device in the same step.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: August 9, 2022
    Assignee: Powertech Technology Inc.
    Inventors: Shih-Chun Chen, Sheng-Tou Tseng, Kun-Chi Hsu, Chin-Ta Wu, Ying-Lin Chen, Ting-Yeh Wu
  • Patent number: 11367641
    Abstract: A wafer storage device includes a wafer cassette and a carrier plate. The wafer cassette includes a housing and a plurality pairs of retaining members disposed on lateral walls of the housing. The carrier plate is placed into the housing, is supported by one pair of the retaining members, and includes a plate body carrying the wafer thereon, and having a periphery formed with two slots extending respectively in two different radial directions of the wafer. Two positioning members respectively and radially correspond in position to the slots, and abut against an outer rim of the wafer.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: June 21, 2022
    Assignee: Powertech Technology Inc.
    Inventors: Chin-Ta Wu, I-Lin Chan, Chi-Sheng Chang, Cheng-Hao Ciou
  • Publication number: 20220118631
    Abstract: A head of chip picker is disclosed. The head has a clipping seat and an elastic block. The clipping seat has a body and two arms. The arms are respectively and downwardly extended from two opposite sides of an inner top surface of the body, so a cavity with a wide-top and narrow-bottom shape is constituted among the inner top surface and the arms. The elastic block matches the cavity and is laterally inserted into the cavity. The elastic block is not deformed after inserting into the cavity and provides a flat bottom surface.
    Type: Application
    Filed: February 24, 2021
    Publication date: April 21, 2022
    Applicant: Powertech Technology Inc.
    Inventors: Wu-Yi CHOU, Kun-Chi HSU, Chin-Ta WU, Yung-Chin SHIH, Chin Cheng LIU, Jentung TSENG
  • Publication number: 20210339338
    Abstract: A laser cutting method for a wafer is provided. First, an active side of a wafer is cut by a laser to form multiple cutting grooves so that the thicker and harder layer of the integrated circuit on the active side is cut. Then the stealth laser is used to cut the backside of the wafer by aligning the beams of the stealth laser with the cutting grooves. Therefore, the cutting grooves easily extend to the backside of the wafer and penetrate through the wafer to dice the wafer into multiple independent chips.
    Type: Application
    Filed: August 19, 2020
    Publication date: November 4, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Chui-Liang CHIU, Kun-Chi HSU, Chin-Ta WU, Ching-Lin TSENG, Chia-Wei LIN, Jentung Tseng
  • Publication number: 20210288003
    Abstract: A semiconductor package having a partial outer metal layer and packaging method thereof is disclosed. In the method, a specific packaging substrate or a specific positioning plate is used to package multiple semiconductor devices and a partial outer metal layer is quickly formed on an encapsulation of each semiconductor device in the same step.
    Type: Application
    Filed: November 10, 2020
    Publication date: September 16, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Shih-Chun CHEN, Sheng-Tou TSENG, Kun-Chi HSU, Chin-Ta WU, Ying-Lin CHEN, Ting-Yeh WU
  • Publication number: 20210217632
    Abstract: Batch semiconductor packaging structures with back-deposited shielding layer and manufacturing method are provided. A grid having multiple frames is glued on an adhesive substrate. Multiple semiconductor devices respectively align with corresponding frames and are stuck on the adhesive substrate. Then a metal layer covers the semiconductor devices and the grid. A distance between four peripheries of a bottom of each semiconductor device and the corresponding frame is smaller than a distance between the bottom and the adhesive substrate, so that the a portion of the metal layer extended to the peripheries of the bottom is effectively reduced during forming the metal layer. After the semiconductor devices are picked up, no metal scrap is remined thereon. Therefore, the adhesive substrate does not need to form openings in advance and is reusable. The grid is also reusable so the manufacturing cost of the present invention is decreased.
    Type: Application
    Filed: November 10, 2020
    Publication date: July 15, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Shih-Chun CHEN, Sheng-Tou TSENG, Kun-Chi HSU, Chin-Ta WU, Ting-Yeh WU
  • Publication number: 20210217641
    Abstract: A chip carrier device includes a frame, a chip support and a limiter. The chip support is disposed on the frame, and includes a supporting film for chips to be adhered thereto. A peripheral portion of the supporting film is attached to a surrounding frame part of the frame. A crossing portion of the supporting film passes through a center of the supporting film, and interconnects two opposite points of the peripheral portion. The supporting film is formed with through holes. The limiter includes a limiting part that interconnects two opposite points of the surrounding frame part, that is positioned corresponding to the crossing portion, and that is positioned on one side of the supporting film where the chips are to be arranged.
    Type: Application
    Filed: August 20, 2020
    Publication date: July 15, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Shih-Chun CHEN, Sheng-Tou TSENG, Kun-Chi HSU, Chin-Ta WU, Ying-Lin CHEN, Ting-Yeh WU
  • Publication number: 20210193492
    Abstract: A wafer storage device includes a wafer cassette and a carrier plate. The wafer cassette includes a housing and a plurality pairs of retaining members disposed on lateral walls of the housing. The carrier plate is placed into the housing, is supported by one pair of the retaining members, and includes a plate body carrying the wafer thereon, and having a periphery formed with two slots extending respectively in two different radial directions of the wafer. Two positioning members respectively and radially correspond in position to the slots, and abut against an outer rim of the wafer.
    Type: Application
    Filed: May 5, 2020
    Publication date: June 24, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Chin-Ta WU, I-Lin CHAN, Chi-Sheng CHANG, Cheng-Hao CIOU
  • Patent number: 10388535
    Abstract: A wafer processing method uses a chuck table with smaller diameter than a semiconductor wafer to be processed. A cut through edge trimming is therefore implemented on the periphery of the semiconductor wafer to form a cut through straight side at the periphery and also form a flat portion at the periphery as a positioning means for taping and backside grind processes.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: August 20, 2019
    Assignee: POWERTECH TECHNOLOGY INC.
    Inventors: Chui-Liang Chiu, Kun-Chi Hsu, Jen-Tung Tseng, Chin-Ta Wu
  • Publication number: 20190229064
    Abstract: A laser color marking method for a semiconductor package has steps of: (a) providing a semiconductor element; (b) sputtering a metal layer on the semiconductor element; (c) obtaining a marking pattern; and (d) applying a laser light source on the marking region to form a mark according to the marking pattern. The mark is consisted of an optical oxide film converting ambient light to a corresponding color light, so a visible color mark is marked. Therefore, the present invention easily laser-marks the visible color mark on the semiconductor package.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 25, 2019
    Applicant: Powertech Technology Inc.
    Inventors: Chin-Ta Wu, Sheng-Tou Tseng, Kuo-Jhan Kao, Ying-Lin Chen, Cheng-Hung Song, Hung-Chieh Huang, Kun-Chi Hsu
  • Patent number: 7000805
    Abstract: A PU foam rubber fluid applicator includes a handle, the handle having a receptacle adapted to accommodate a PU foam rubber can, a nozzle connected to the valve tube of the loaded PU foam rubber can, a lever pivoted to the receptacle and supported on a return spring and controlled by one finger of the user's hand holding the handle to lift the nozzle and to further open the valve tube of the PU foam rubber can, and a retaining block pivoted to the receptacle and forced by a spring member to lock the PU foam rubber can.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: February 21, 2006
    Inventors: Chin-Ta Wu, Tang-Yang Cheng
  • Patent number: 6869837
    Abstract: A method of fabricating word-line spacers comprising the following steps. A substrate having an inchoate split-gate flash memory structure formed thereover is provided. A conductive layer is formed over the substrate and the inchoate split-gate flash memory structure. The conductive layer having: a upper portion and lower vertical portions over the inchoate split-gate flash memory structure; and lower horizontal portions over the substrate. A dual-thickness oxide layer is formed over the conductive layer and has a greater thickness over the upper portion of the conductive layer. The oxide layer is partially etched back to remove at least the oxide layer from over the lower horizontal portions of the conductive layer to expose the underlying portions of the conductive layer.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: March 22, 2005
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Yuan-Hung Liu, Yeur-Luen Tu, Chin-Ta Wu, Tsung-Hsun Huang, Hsiu Ouyang, Chi-Hsin Lo, Chia-Shiung Tsai
  • Patent number: 6037251
    Abstract: A process for intermetal SOG/SOP dielectric planarization without having effect is described. First, a silicon-rich oxide (SRO) layer is formed on a substrate surface. Next, a metal layer and an antireflective coating (ARC) layer are sequentially deposited over the SRO layer. The metal layer and ARC layer are then etched to define metal patterns by the conventional lithography and etching techniques. Next, an Ozone-TEOS (O.sub.3 -TEOS) layer and a SOG layer are then formed over the entire substrate surface. Next, the O.sub.3 -TEOS layer and SOG layer are subjected to etching back treatment to obtain a planar substrate surface which only has a small portion of the O.sub.3 -TEOS layer covered on the substrate surface. The etching back treatment can be PEB, TEB or CMP techniques. Finally, a passivation layer is deposited over the remaining of O.sub.3 -TEOS layer.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: March 14, 2000
    Assignee: Mosel Vitelic Inc.
    Inventors: Tuby Tu, Chin-Ta Wu, Chen Kuang-Chao, Dinos Huang