Title:
REDUNDANT FUSE BOX AND SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JP3708714
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the number of column redundant fuse boxes and the area of redundant fuse boxes.
SOLUTION: The semiconductor device has a plurality of memory blocks 401 and 403 including normal and redundant memory cells, a plurality of normal column selection line drivers 409 and 411, a plurality of redundant column selection line drivers 405 and 407, and a common column redundant fuse box 413. All of the normal column selection line driver 409 and the redundant column selection line driver 405 include a fuse, and the column redundant fuse box 413 is shared by the redundant column selection line drivers 405 and 407. Also, the redundant fuse box 413 has a repair address judgment part that latches a repair address in advance, compares an input address with the latched repair one, and judges whether the input address is the same as the repair one or not, and a redundant enable signal generation part that responds to the output signal of the repair address judgment part and generates a redundant enable signal.
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Inventors:
Park
Kinpei
Kinpei
Application Number:
JP19760398A
Publication Date:
October 19, 2005
Filing Date:
July 13, 1998
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H01L27/10; G06F11/00; G11C11/34; G11C11/401; G11C29/00; G11C29/04; (IPC1-7): G11C29/00
Domestic Patent References:
| JP5217396A | ||||
| JP6119796A | ||||
| JP9185897A |
Attorney, Agent or Firm:
Yasunori Otsuka
Kenichi Matsumoto
Kenichi Matsumoto
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