Patents by Inventor Wee Lee Ng

Wee Lee Ng 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: 20030141103
    Abstract: An improved PCB bond pad (22, 40, 50, 60) having a dimensioned geometry that improves solder re-flow and facilitates outgassing of bubbles generated in solder during re-flow to reduce voiding. The improved PCB bond pad design is particularly useful to improve re-flow for RF devices that are sensitive to voiding in solder after re-flow and provides an excellent ground plane/heat sink connection. The present invention includes a printed circuit board (PCB) having a patterned bond pad defining solder channels (30, 42, 52, and 62). During re-flow, bubbles outgas through the channels from under a contact pad (34) of an overlying IC device thereby providing nearly 100 percent solder coverage at interface of device exposed pad and PCB bond pad.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: Wee Lee Ng, Buford H. Carter