Patents by Inventor Henkles, Walter H.

Henkles, Walter H. 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: 5363327
    Abstract: A two transistor one capacitor DRAM cell configured with respect to a bit line pair and a single word line in which the gates of the two transistors are connected to the single word line and one of the source/drains of each transistor is connected to a respective electrode of the capacitor and the other of the source/drains of the transistors is connected to a respective bit line of a complementary bit line pair. The storage capacitor is a three dimensional structure with both electrodes being electrically well isolated from electrodes of all other cell storage capacitors. A stacked in trench cell fabrication design is disclosed having a buried strap for connecting the outer electrode to a diffusion region of one transistor and a surface strap for connecting the inner electrode to a diffusion region of the second access transistor.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: November 8, 1994
    Assignee: International Business Machines Corporation
    Inventors: Henkles, Walter H., Wei Hwang