Semiconductor device for performing automatic replacement of def

Details Semiconductor device for performing automatic replacement of def Semiconductor device for performing automatic replacement of def

1990-01-23

1991-06-18

Moffitt, James W.

Static information storage and retrieval

Read/write circuit

Bad bit

371 102, G11C 800

Patent

active

050254189

ABSTRACT:
A semiconductor device includes a main storage section for storing data. A spare storage section is disposed in association with the main storage section so as to serve as a redundancy circuit for replacing a deflection element of the main storage section. A temporary storage section is disposed in association with the main storage section to store the data temporarily. A comparator section makes a comparison between the data stored in the main storage section and the data stored in the temporary storage section to provide a comparison result. A switching section is responsive to the comparison result output from the comparator section to replace the defective element with the spare storage section.

REFERENCES:
patent: 4691301 (1987-09-01), Anderson

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