Patents by Inventor En-Boa Wu

En-Boa 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: 6312974
    Abstract: A method for simultaneous bumping/bonding an IC chip to a semiconductor substrate and a semiconductor package fabricated by the method are described. In the method, a plurality of edge-type conductive pads formed of under-bump-metallurgy layers are first fabricated on an IC chip by dicing through conductive pads formed on a silicon wafer. The edge-type conductive pads, or UBM layer, are then positioned in close proximity to conductive elements formed on a top surface of a semiconductor substrate. A volume of solder is then applied to the interface between the conductive pads and the conductive elements to form electrical bonds between the two. A suitable method for applying the volume of solder may be a solder jetting technique, a solder printing technique or a method utilizing pre-applied solder paste on the surfaces to be bonded together.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: November 6, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: En-Boa Wu, Tsung-Yao Chu, Hsin-Chien Huang