Semiconductor device
    18.
    发明专利
    Semiconductor device 有权
    半导体器件

    公开(公告)号:JP2005243922A

    公开(公告)日:2005-09-08

    申请号:JP2004051782

    申请日:2004-02-26

    发明人: OTSUKA NOBUAKI

    摘要: PROBLEM TO BE SOLVED: To provide a semiconductor device having a fuse circuit capable of rewriting data using a fuse element while storing the data. SOLUTION: The semiconductor device comprises a first fuse circuit group 62 capable of electrical writing and being written with n-bits data, and a plurality of second fuse circuit groups 72 each having a first storage section capable of electrical writing and storing rewrite data of m-bits (m is equal to n divided by an integer), and a second storage section for storing the address of a bit to be rewritten in the first fuse circuit group. At the time of rewriting data written in the first fuse circuit group, the data to be rewritten is written in the first storage section of the second fuse circuit group, the data corresponding to the address for storing the data to be rewritten in the first fuse circuit group is written in the second storage section, and read out of the data written in the first fuse circuit group at that address is forbidden. COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 要解决的问题:提供一种具有能够在存储数据的同时使用熔丝元件重写数据的熔丝电路的半导体器件。 解决方案:半导体器件包括能够电写入并且被写入n位数据的第一熔丝电路组62和多个第二熔丝电路组72,每个第二熔丝电路组72具有能够电写入和存储重写的第一存储部分 m比特的数据(m等于n除以整数),以及第二存储部分,用于存储要重写在第一熔丝电路组中的比特的地址。 在重写写在第一熔丝电路组中的数据时,要重写的数据被写入第二熔丝电路组的第一存储部分中,对应于用于存储将被重写在第一熔丝中的数据的地址的数据 电路组被写入第二存储部分,并且禁止从该地址读出写入第一熔丝电路组的数据。 版权所有(C)2005,JPO&NCIPI