Patents by Inventor Sheng-Lung Wang

Sheng-Lung 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).

  • Publication number: 20190181309
    Abstract: A cutting method of a semiconductor package module and a semiconductor package unit are provided. The cutting method of the semiconductor package module includes steps as follow. A plurality of semiconductor chips are disposed on a substrate, and the semiconductor chips and a surface of the substrate are covered with a packaging layer. A plurality of cutting lines are defined on the surface of the substrate. A plurality of spot-like depressions are formed on the substrate or the packaging layer along the cutting lines by laser. A force is applied to the substrate such that the substrate is broken along the cutting lines and a plurality of semiconductor package units are formed.
    Type: Application
    Filed: May 31, 2018
    Publication date: June 13, 2019
    Applicant: Yu Shin Prod. Co., Ltd.
    Inventors: Sheng-Lung Wang, Fu-Hao Chan
  • Patent number: 5937457
    Abstract: A cradle base collapsible mechanism, involving four sides at the bottom of a baby cradle, each side involving two support rods that are joined by a middle unit, each corner of the cradle involving a corner piece that is joined to another end of the support rod, the inside of each middle unit is joined with a middle rod, the other end of the middle rod is joined to one side of a center unit, one end of the middle rod facing the center unit is fitted with a bottom fixing unit, the fixing unit has a flange that is engaged to the rod opening, to the fixing unit is riveted a slide block, between the slide block and the fixing unit bottom is a spring, the oblique section at the front end of each slide block extending a fixing unit, in connection with a corresponding end of a pressing plate, when the pressing plate is lifted, the slide block will retract, and the middle rod will be pulled up and straightened accordingly, then the middle unit will be folded ninety degrees, so each support rod is pulled up and straigh
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: August 17, 1999
    Assignee: Li-Ju Chen
    Inventor: Sheng-Lung Wang