Fuse element reading circuit

Details Fuse element reading circuit Fuse element reading circuit

2009-07-13

2011-12-06

Nguyen, VanThu (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having fuse element

C365S210140, C365S096000, C365S210150

Reexamination Certificate

active

08072831

ABSTRACT:
A fuse element reading circuit including a first fuse element having a resistance which differs in accordance with whether the first fuse element is in a blown state or an unblown state, a reference voltage output circuit unit that outputs a reference voltage that differs in accordance with a normal mode or a test mode, and a voltage comparison circuit unit that compares a read voltage corresponding to the resistance of the first fuse element with the reference voltage output from the reference voltage output circuit unit.

REFERENCES:
patent: 6903986 (2005-06-01), Hejdeman et al.
patent: 7030641 (2006-04-01), Tang et al.
patent: 7307864 (2007-12-01), Kohara
patent: 2005/0151578 (2005-07-01), Huang et al.
patent: 2007/0278615 (2007-12-01), Kushiyama
patent: 2009/0009186 (2009-01-01), Kaneko

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