Patents by Inventor UNISANTIS ELECTRONICS SINGAPORE PTE. L

UNISANTIS ELECTRONICS SINGAPORE PTE. L 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: 20130095625
    Abstract: A method for producing a semiconductor device includes preparing a structure having a substrate, a planar semiconductor layer and a columnar semiconductor layer, forming a second drain/source region in the upper part of the columnar semiconductor layer, forming a contact stopper film and a contact interlayer film, and forming a contact layer on the second drain/source region. The step for forming the contact layer includes forming a pattern and etching the contact interlayer film to the contact stopper film using the pattern to form a contact hole for the contact layer and removing the contact stopper film remaining at the bottom of the contact hole by etching. The projection of the bottom surface of the contact hole onto the substrate is within the circumference of the projected profile of the contact stopper film formed on the top and side surface of the columnar semiconductor layer onto the substrate.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 18, 2013
    Applicant: UNISANTIS ELECTRONICS SINGAPORE PTE. LTD.
    Inventor: UNISANTIS ELECTRONICS SINGAPORE PTE. L