Patents by Inventor Shyng Yeuan Che

Shyng Yeuan Che 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).

  • Method of fabricating a mask ROM
    Patent number: 6194274
    Abstract: A method of fabricating mask ROMs combines the code mask and via mask into a combination mask such that the isolation layers are removed to reveal the memory cells to be coded and the metal layers to be electrically contacted simultaneously, and the bury implantation process can be shifted and combined with the back-end process. Consequently, the delivery of mask ROM finished-products can be speeded, and the fabricating cost reduced.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: February 27, 2001
    Assignee: Winbond Electronics Corp.
    Inventor: Shyng Yeuan Che