Patents by Inventor Herman Effing

Herman Effing 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).

  • Complementary Asymmetric High Voltage Devices and Method of Fabrication
    Publication number: 20080308874
    Abstract: An asymmetric semiconductor device (10) and method of forming the same in which 25V devices can be fabricated in processes with gate oxide thicknesses designed for 2.75 or 5.5V maximum operation. The device includes: a shallow trench isolation (STI) region (12) that forms a dielectric between a drain region (18) and a gate region (20) of a unit cell to allow for high voltage operation; and an n-type well (14) and a p-type well (24) patterned within the unit cell.
    Type: Application
    Filed: March 30, 2006
    Publication date: December 18, 2008
    Applicant: NXP B.V.
    Inventors: Theodore Letavic, Herman Effing, Robert Cook