Patents by Inventor Yang S. Joo

Yang S. Joo 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).

  • Semiconductor memory device
    Patent number: 5596538
    Abstract: In a semiconductor memory device, data required for controlling design margins and access time is stored at a selected fuse ROM array and a vendor test is performed. By using the information obtained by the vendor testing, fuse ROM arrays are programed, so that design margins and access time can be easily varied according to semiconductor memory device, thereby enhancing the device performance. Moreover, by additionally adapting a multiplexer, a plurality of fuse ROM arrays can be programmed by using a few pads.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: January 21, 1997
    Assignee: LG Semicon Co., Ltd.
    Inventor: Yang S. Joo