发明授权
US6111798A Fuse repair circuit for semiconductor memory circuit 有权
半导体存储电路保险丝修复电路

  • 专利标题: Fuse repair circuit for semiconductor memory circuit
  • 专利标题(中): 半导体存储电路保险丝修复电路
  • 申请号: US247523
    申请日: 1999-02-10
  • 公开(公告)号: US6111798A
    公开(公告)日: 2000-08-29
  • 发明人: Joo Sang Lee
  • 申请人: Joo Sang Lee
  • 申请人地址: KRX Cheongju
  • 专利权人: LG Semicon Co., Ltd.
  • 当前专利权人: LG Semicon Co., Ltd.
  • 当前专利权人地址: KRX Cheongju
  • 优先权: KRX98-3986 19981102
  • 主分类号: G11C29/00
  • IPC分类号: G11C29/00 G11C7/00
Fuse repair circuit for semiconductor memory circuit
摘要:
A fuse repair circuit for a semiconductor memory device includes a cell array provided with a row redundancy and a column redundancy and a fuse block for driving the row redundancy during a RAS cycle and driving the column redundancy during a CAS cycle, wherein the fuse block consists of an address input unit for selectively outputting a row address or a column address in accordance with switching signals, a plurality of fuse units, wherein redundancy information of a defective cell is programmed, for comparing an inputted address with the programmed redundancy information, and a redundancy driving unit for outputting a matching signal for driving the row redundancy or the column redundancy when the inputted address and the programmed redundancy information are identical.
公开/授权文献
信息查询
0/0