Patents by Inventor Ching-Chuan Chang

Ching-Chuan 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).

  • Patent number: 12229064
    Abstract: An integrated circuit in a transmitter includes a multi-lane interface, N signal generating circuits, a lane selection circuit and a control circuit. The multi-lane interface has N lanes. M of the N signal generating circuits are configured to generate M clock signals respectively. (N-M) of the N signal generating circuits are configured to generate (N-M) data signals respectively. The lane selection circuit is configured to select M of the N lanes as M clock lanes by coupling the M clock signals to the M clock lanes respectively, and couple one of the (N-M) data signals to one of remaining (N-M) lanes, serving as (N-M) data lanes, according to a data select signal. The control circuit is configured to generate a data select signal according to a lane identifier of the one of the (N-M) lanes. The data select signal has a signal value mapping to the lane identifier.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: February 18, 2025
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Yueh-Chuan Lu, Ching-Hsiang Chang
  • Patent number: 12021002
    Abstract: A semiconductor die includes a semiconductor substrate, a dielectric layer over the semiconductor substrate, a metal structure in the dielectric layer, a first metal pad over the metal structure, a first oxide-based passivation layer over the first metal pad, a second oxide-based passivation layer over the first oxide-based passivation layer, and a bump electrically connected to the first metal pad. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: June 25, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting Wang, Yi-An Lin, Ching-Chuan Chang, Po-Chang Kuo
  • Publication number: 20220384292
    Abstract: A semiconductor die includes a semiconductor substrate, a dielectric layer over the semiconductor substrate, a metal structure in the dielectric layer, a first metal pad over the metal structure, a first oxide-based passivation layer over the first metal pad, a second oxide-based passivation layer over the first oxide-based passivation layer, and a bump electrically connected to the first metal pad. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting WANG, Yi-An LIN, Ching-Chuan CHANG, Po-Chang KUO
  • Patent number: 11450584
    Abstract: A method is provided. A bottom passivation layer is formed on a dielectric layer over a semiconductor substrate. Then, a first opening is formed in the bottom passivation layer to expose a portion of the dielectric layer. Next, a metal pad is formed in the first opening. Afterwards, a first oxide-based passivation layer is formed over the metal pad. Then, a second oxide-based passivation layer is formed over the first oxide-based passivation layer. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: September 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting Wang, Yi-An Lin, Ching-Chuan Chang, Po-Chang Kuo
  • Publication number: 20200381326
    Abstract: A method is provided. A bottom passivation layer is formed on a dielectric layer over a semiconductor substrate. Then, a first opening is formed in the bottom passivation layer to expose a portion of the dielectric layer. Next, a metal pad is formed in the first opening. Afterwards, a first oxide-based passivation layer is formed over the metal pad. Then, a second oxide-based passivation layer is formed over the first oxide-based passivation layer. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting WANG, Yi-An LIN, Ching-Chuan CHANG, Po-Chang KUO
  • Patent number: 10755995
    Abstract: A method is provided. A bottom passivation layer is formed on a dielectric layer over a semiconductor substrate. Then, a first opening is formed in the bottom passivation layer to expose a portion of the dielectric layer. Next, a metal pad is formed in the first opening. Afterwards, a first oxide-based passivation layer is formed over the metal pad. Then, a second oxide-based passivation layer is formed over the first oxide-based passivation layer. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: August 25, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting Wang, Yi-An Lin, Ching-Chuan Chang, Po-Chang Kuo
  • Publication number: 20200006182
    Abstract: A method is provided. A bottom passivation layer is formed on a dielectric layer over a semiconductor substrate. Then, a first opening is formed in the bottom passivation layer to expose a portion of the dielectric layer. Next, a metal pad is formed in the first opening. Afterwards, a first oxide-based passivation layer is formed over the metal pad. Then, a second oxide-based passivation layer is formed over the first oxide-based passivation layer. The second oxide-based passivation layer has a hardness less than a hardness of the first oxide-based passivation layer.
    Type: Application
    Filed: May 2, 2019
    Publication date: January 2, 2020
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yun-Ting WANG, Yi-An LIN, Ching-Chuan CHANG, Po-Chang KUO
  • Patent number: 9411475
    Abstract: A keyboard includes a non-conductive board, a plurality of keyswitches, and a capacitive touch sensing sheet. The plurality of keyswitches is disposed on the non-conductive board. Each keyswitch includes a keycap and a support device. The support device is connected to the keycap and the non-conductive board so as to make the keycap movable between a pressing position and a non-pressing position relative to the non-conductive board. The capacitive touch sensing sheet is disposed under the non-conductive board for providing a cursor signal to a computer device.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 9, 2016
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventors: Ching-Chuan Chang, Chia-Hung Liu
  • Patent number: 9236205
    Abstract: A keyswitch includes a cap, a board, first and second support members rotatably connected to the cap and the board, a seesaw member, and a magnetic member. The seesaw member movably supports at least one of the cap and the first and second support members. The magnetic member is disposed on the board corresponding to the seesaw member. When the cap is pressed, the at least one of the cap and the first and second support members drives the seesaw member to raise and the cap moves from a non-pressed position to a pressed position. When the cap is released, a magnetic attraction force between the magnetic member and the seesaw member drives the seesaw member to raise for lifting the at least one of the cap and the first and second support members, so as to move the cap back to the non-pressed position.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: January 12, 2016
    Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.
    Inventors: Chien-Shih Hsu, Zuei-Chown Jou, Ching-Chuan Chang
  • Publication number: 20140231234
    Abstract: A keyswitch includes a cap, a board, first and second support members rotatably connected to the cap and the board, a seesaw member, and a magnetic member. The seesaw member movably supports at least one of the cap and the first and second support members. The magnetic member is disposed on the board corresponding to the seesaw member. When the cap is pressed, the at least one of the cap and the first and second support members drives the seesaw member to raise and the cap moves from a non-pressed position to a pressed position. When the cap is released, a magnetic attraction force between the magnetic member and the seesaw member drives the seesaw member to raise for lifting the at least one of the cap and the first and second support members, so as to move the cap back to the non-pressed position.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 21, 2014
    Applicants: DARFON ELECTRONICS CORP., DARFON ELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Chien-Shih Hsu, Zuei-Chown Jou, Ching-Chuan Chang
  • Publication number: 20140151212
    Abstract: A keyboard includes a non-conductive board, a plurality of keyswitches, and a capacitive touch sensing sheet. The plurality of keyswitches is disposed on the non-conductive board. Each keyswitch includes a keycap and a support device. The support device is connected to the keycap and the non-conductive board so as to make the keycap movable between a pressing position and a non-pressing position relative to the non-conductive board. The capacitive touch sensing sheet is disposed under the non-conductive board for providing a cursor signal to a computer device.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Applicants: DARFON ELECTRONICS CORP., DARFON ELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Ching-Chuan Chang, Chia-Hung Liu
  • Publication number: 20050137445
    Abstract: An eye massager comprises a pair of magnetic devices; and an eye mask. The eye mask comprises a mask frame and a pair of buckles for combining an adjustable tension strip. A front end of the mask frame is a soft mask body. The mask body is formed with two through holes at positions corresponding to those of user's eyes. Each through hole is passed through by and fixed with one magnetic device. Each of two sides of the eye mask is installed with one of the pair of buckles. The mask body and the mask frame are made of hard materials. A periphery of each through hole of the mask body is enclosed by a rubber ring. The magnetic device comprises a permanent magnet; a handle having a receiving portion for receiving the permanent magnet; and a plug for sealing the permanent magnet in the handle.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Pao-Sheng Chang, Ching-Chuan Chang