Patents by Inventor Xiao Lin Kang

Xiao Lin Kang 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: 12283559
    Abstract: A semiconductor package includes a conductive pad, a semiconductor die with an aluminum bond pad over a dielectric layer of the semiconductor die, a gold bump on the aluminum bond pad, a first intermetallic layer of gold and aluminum between the aluminum bond pad and the gold bump, a copper ball bond on the gold bump, a second intermetallic layer of copper and gold between the copper ball bond and the gold bump, a copper wire extending from the copper ball bond to the conductive pad, a stitch bond between the copper wire and the conductive pad.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: April 22, 2025
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lin Zhang, Huo Yun Duan, Xi Lin Li, Chen Xiong, Xiao Lin Kang
  • Publication number: 20240290746
    Abstract: A semiconductor device includes a semiconductor die having a die surface, in which the die surface includes a bond pad. A ball bond has a distal surface and flattened-disk shape extending from the distal surface and terminating in a proximal surface spaced apart from the distal surface. The distal surface is coupled to the bond pad and a channel extends a depth into the proximal surface surrounding a central portion of the proximal surface. A bond wire extending from the central portion of the proximal surface, in which the channel is spaced apart from and surrounds the bond wire.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 29, 2024
    Inventors: Ye ZHUANG, Zi Qi WANG, Xiao Lin KANG, Tingting YU, Jiafeng LIAO, Xiaoling KANG
  • Publication number: 20240250060
    Abstract: An example semiconductor package comprises a semiconductor die having a top surface, a bond pad formed on the top surface, a bond wire having a first end and a second end, wherein the first end is attached to the bond pad. The semiconductor package having a contact pad, wherein the second end of the wire bond is attached to the contact pad by a stitch bond, the stitch bond having a plateau region formed between a cut end and a ramped portion, wherein a bottom surface of the plateau region forms an attachment to the contact pad.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 25, 2024
    Inventors: Ye Zhuang, Huo Yun Duan, Zi Qi Wang, Xiao Lin Kang, Xiaoling Kang, Tingting Yu
  • Publication number: 20230275060
    Abstract: A semiconductor package includes a leadframe including a die pad and a plurality of leads including a first lead, wherein the first lead includes a first ball bond. A semiconductor die having a plurality of bond pads including a first bond pad is on the die pad including a second ball bond on the first bond pad and a stitch bond on the second ball bond. A first wirebond connection is between the first ball bond and the stitch bond.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 31, 2023
    Inventors: Xiaoling Kang, Xi Lin Li, Zi Qi Wang, Huo Yun Duan, Xiao Lin Kang
  • Publication number: 20230086535
    Abstract: A semiconductor package includes a conductive pad, a semiconductor die with an aluminum bond pad over a dielectric layer of the semiconductor die, a gold bump on the aluminum bond pad, a first intermetallic layer of gold and aluminum between the aluminum bond pad and the gold bump, a copper ball bond on the gold bump, a second intermetallic layer of copper and gold between the copper ball bond and the gold bump, a copper wire extending from the copper ball bond to the conductive pad, a stitch bond between the copper wire and the conductive pad.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Inventors: Lin Zhang, Huo Yun Duan, Xi Lin Li, Chen Xiong, Xiao Lin Kang
  • Patent number: 11515275
    Abstract: A semiconductor package includes a conductive pad, a semiconductor die with an aluminum bond pad over a dielectric layer of the semiconductor die, a gold bump on the aluminum bond pad, a first intermetallic layer of gold and aluminum between the aluminum bond pad and the gold bump, a copper ball bond on the gold bump, a second intermetallic layer of copper and gold between the copper ball bond and the gold bump, a copper wire extending from the copper ball bond to the conductive pad, a stitch bond between the copper wire and the conductive pad.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: November 29, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Lin Zhang, Huo Yun Duan, Xi Lin Li, Chen Xiong, Xiao Lin Kang
  • Publication number: 20210313291
    Abstract: A semiconductor package includes a conductive pad, a semiconductor die with an aluminum bond pad over a dielectric layer of the semiconductor die, a gold bump on the aluminum bond pad, a first intermetallic layer of gold and aluminum between the aluminum bond pad and the gold bump, a copper ball bond on the gold bump, a second intermetallic layer of copper and gold between the copper ball bond and the gold bump, a copper wire extending from the copper ball bond to the conductive pad, a stitch bond between the copper wire and the conductive pad.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 7, 2021
    Inventors: Lin Zhang, Huo Yun Duan, Xi Lin Li, Chen Xiong, Xiao Lin Kang
  • Patent number: 10692835
    Abstract: A method for forming a ball bond for an integrated circuit formed on a semiconductor die includes forming a ball at a first send of a conductive wire inserted in a capillary tool and lowering the capillary tool toward a pad on the semiconductor die positioned on a support surface. The method further includes moving, using a motor, the support surface relative to the capillary tool to thereby bond the ball, without using ultrasound, to the pad and then raising the capillary tool.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 23, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Han Zhong, Zi Qi Wang, Chen Xiong, Yong Qiang Tang, Xi Lin Li, Xiao Lin Kang
  • Publication number: 20190378814
    Abstract: A method for forming a ball bond for an integrated circuit formed on a semiconductor die includes forming a ball at a first send of a conductive wire inserted in a capillary tool and lowering the capillary tool toward a pad on the semiconductor die positioned on a support surface. The method further includes moving, using a motor, the support surface relative to the capillary tool to thereby bond the ball, without using ultrasound, to the pad and then raising the capillary tool.
    Type: Application
    Filed: October 25, 2018
    Publication date: December 12, 2019
    Inventors: Han Zhong, Zi Qi Wang, Chen Xiong, Yong Qiang Tang, Xi Lin Li, Xiao Lin Kang