发明授权
US06208568B1 Circuit for cancelling and replacing redundant elements 有权
用于取消和更换冗余元件的电路

  • 专利标题: Circuit for cancelling and replacing redundant elements
  • 专利标题(中): 用于取消和更换冗余元件的电路
  • 申请号: US09133714
    申请日: 1998-08-13
  • 公开(公告)号: US06208568B1
    公开(公告)日: 2001-03-27
  • 发明人: Paul S. ZagarAdrian E. Ong
  • 申请人: Paul S. ZagarAdrian E. Ong
  • 主分类号: G11C1300
  • IPC分类号: G11C1300
Circuit for cancelling and replacing redundant elements
摘要:
In an integrated circuit having addressable primary elements and redundant elements which can be programmed to replace primary elements, a circuit and method are provided for cancelling and replacing redundant elements. A circuit is described which can be used in a memory such as a dynamic random access memory (DRAM) which uses a selectively blowable anti-fuse to disable a redundant element which was previously programmed to replace a defective primary element. The disclosure describes a method for permanently cancelling the defective redundant element and replacing the defective redundant element with another redundant element.
信息查询
0/0