Patents by Inventor Wu-Chang Wang

Wu-Chang Wang 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: 11189610
    Abstract: A substrate structure includes at least one detachable first substrate unit and a substrate body. The detachable first substrate unit includes a plurality of corners and a plurality of first engagement portions. Each of the first engagement portions is disposed at each of the corners of the detachable first substrate unit. The substrate body includes a plurality of second substrate units, at least one opening and a plurality of second engagement portions. The opening is substantially defined by a plurality of sidewalls of the second substrate units, and includes a plurality of corners. Each of the second engagement portions is disposed at each of the corners of the opening. The detachable first substrate unit is disposed in the opening, and the second engagement portions are engaged with the first engagement portions.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 30, 2021
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Li-Chuan Tsai, Wu Chang Wang
  • Publication number: 20200006315
    Abstract: A substrate structure includes at least one detachable first substrate unit and a substrate body. The detachable first substrate unit includes a plurality of corners and a plurality of first engagement portions. Each of the first engagement portions is disposed at each of the corners of the detachable first substrate unit. The substrate body includes a plurality of second substrate units, at least one opening and a plurality of second engagement portions. The opening is substantially defined by a plurality of sidewalls of the second substrate units, and includes a plurality of corners. Each of the second engagement portions is disposed at each of the corners of the opening. The detachable first substrate unit is disposed in the opening, and the second engagement portions are engaged with the first engagement portions.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 2, 2020
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: Li-Chuan TSAI, Wu Chang WANG
  • Publication number: 20080263852
    Abstract: A method for forming a slot on a substrate is disclosed, and provides a two-step process used to firstly form two circular holes on two ends of a predetermined cut area and then form a rectangular hole between the two circular holes by punching. Thus, the friction generated between a punching machine and the substrate during punching can be lowered, so as to prevent glass fiber layers of the substrate from being peeled off, avoid the glass fiber layers from forming burrs, and prevent a metal trace layer of the substrate from being peeled off. Meanwhile, because a portion of the substrate having the metal trace layer is not processed by a milling process, it can prevent the metal trace layer from forming metal burrs.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Inventors: Shih-ching Chang, Kuang-chun Chou, Wu-chang Wang
  • Patent number: 7078798
    Abstract: A manufacturing method of a semiconductor package includes the following steps of: Providing a lead frame including a plurality of leads, each of the leads having an outer lead portion, an inner lead portion and a terminal. Forming a first insulation layer on the inner lead portions and terminals. Forming a die pad on the first insulation layer. Attaching a semiconductor die to the die pad. Forming a plurality of wires for bonding pads of the semiconductor die to corresponding outer lead portions. Finally, forming a molding compound for encapsulating the lead frame, first insulation layer, die pad, semiconductor die, and wires. Furthermore, this invention also discloses a semiconductor device manufactured by utilizing the method.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: July 18, 2006
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventor: Wu-Chang Wang
  • Publication number: 20030234445
    Abstract: A manufacturing method of a semiconductor package includes the following steps of: Providing a lead frame including a plurality of leads, each of the leads having an outer lead portion, an inner lead portion and a terminal. Forming a first insulation layer on the inner lead portions and terminals. Forming a die pad on the first insulation layer. Attaching a semiconductor die to the die pad. Forming a plurality of wires for bonding pads of the semiconductor die to corresponding outer lead portions. Finally, forming a molding compound for encapsulating the lead frame, first insulation layer, die pad, semiconductor die, and wires. Furthermore, this invention also discloses a semiconductor device manufactured by utilizing the method.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 25, 2003
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventor: Wu-Chang Wang
  • Patent number: 6252309
    Abstract: A packaged semi-conductor substrate includes a package encapsulant pouring area, a layout provided on the substrate, a layer of solder mask deposited on the layout, and a film provided on the solder mask. When the package encapsulant is pouted into the package encapsulant pouring area, the package encapsulant is isolated from the solder mask by the film. An adhering force between the film and the package encapsulant is greater than an adhering force between the film and the mask such that the film is degated along with the package encapsulant in the pouring channel during a degating procedure of the pouring channel after a pouring procedure of the package encapsulant. Thus, the film and the package encapsulant are not residual on the substrate.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 26, 2001
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Wu-Chang Wang, Yung-I Yeh, Kun-Ching Chen, Shyh-Ing Wu
  • Patent number: 5982625
    Abstract: A semiconductor packaging device includes a printed circuit board substrate, a mold gate formed on a periphery of the printed circuit board substrate through which a package encapsulant is poured to enclose electric elements mounted on a side of the printed circuit board, and a layer of non-metallic material covered on the side of the printed circuit board substrate in the mold gate area. The package encapsulant, after hardened, is bonded with the layer of non-metallic material, and the bonded package encapsulant/the layer of non-metallic material is degatable from the mold gate.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: November 9, 1999
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Kun-Ching Chen, Tao-Yu Chen, Yung-I Yeh, Wu-Chang Wang, Chun-Che Lee, Chun-Hsiung Huang, Shyh-Ing Wu