Chip information managing method, chip information managing...

Details Chip information managing method, chip information managing... Chip information managing method, chip information managing...

2008-04-15

2008-04-15

Dinh, Son (Department: 2824)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S201000

Reexamination Certificate

active

11440181

ABSTRACT:
In replacing word lines having defective addresses with redundant word lines, information is held in a relationship between the word lines and the redundant word lines. In other words, information is held in a replacement rule. With this arrangement, information such as a lot number, a wafer number within the lot, and a position of a chip within the wafer can be held in the chip, without increasing the chip area at all and without using a large database.

REFERENCES:
patent: 6532182 (2003-03-01), Ogawa et al.
patent: 3555859 (2004-05-01), None

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