Patents by Inventor Chew Wui Chai

Chew Wui Chai 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: 20110176301
    Abstract: A multichip module includes a series of light sources arranged in a planar array, separated by a distance d1 in the x-direction and d2 in the y-direction apart, or they could be spaced different distances apart which are mounted onto an aluminum oxide metal substrate. A uniform light transmissive layer being disposed over said series of light sources having a thickness t, measure from the top of the light sources. A phosphor resin being formed above this light transmissive layer. An encapsulant having a domed portion which functions as a lens, overlaying the phosphor resin to encapsulate the array of light sources. The light transmissive layer, phosphor resin layer and the encapsulant may be formed using an injection molding process.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Applicant: DSEM Holdings Sdn. Bhd.
    Inventors: Loke Chai Liang, Sundar Yoganandan, Chew Wui Chai