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    • 2. 发明专利
    • Fuse latch circuit and semiconductor device
    • 保险丝锁存电路和半导体器件
    • JP2007250125A
    • 2007-09-27
    • JP2006074961
    • 2006-03-17
    • Toshiba Corp株式会社東芝
    • SUGISAWA YOSHINORI
    • G11C29/04H01L21/82H01L21/8242H01L27/108
    • G11C7/1006G11C7/1051G11C29/812G11C2207/107
    • PROBLEM TO BE SOLVED: To provide a fuse latch circuit capable of improving a throughput and yield in a fuse element cutting process by reducing the number of cuttings of real fuse elements, and to provide a semiconductor device including this circuit. SOLUTION: A fuse element section 21 for storing data includes a plurality of fuse elements 21a, and the data are stored in a bit unit in respective fuse elements according to presence/absence of the cutting of fuse element, and these stored data are latched in a bit unit by a latch circuit section 22. In a fuse element section 23 for storing logical information, the logical information about whether the output logic of the data stored in the fuse elements 21a is to be inverted or not, is stored. By a data selecting section 25, any one out of the data latched to the latch circuit section 22 and data obtained by inverting the output logic of the data latched to the latch circuit section 22 by a logic inversion section 24, is selected and output in accordance with the logical information of the fuse element section 23 for storing the logical information. COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种能够通过减少实际熔丝元件的切割次数来提高熔丝元件切割工艺中的生产量和产量的熔丝闩锁电路,并提供包括该电路的半导体器件。 解决方案:用于存储数据的熔丝元件部分21包括多个熔丝元件21a,并且根据存在/不存在熔丝元件的切割,将数据以位单元存储在相应的熔丝元件中,并且这些存储的数据 通过锁存电路部分22以比特单位锁存。在用于存储逻辑信息的熔丝元件部分23中,存储关于存储在熔丝元件21a中的数据的输出逻辑是否被反转的逻辑信息被存储 。 通过数据选择部分25,锁存到锁存电路部分22的数据中的任何一个和由逻辑反相部分24锁存到锁存电路部分22的数据的输出逻辑反转获得的数据被选择并输出 根据用于存储逻辑信息的熔丝元件部23的逻辑信息。 版权所有(C)2007,JPO&INPIT