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US 2006/0152272 A1Published application
Semiconductor integrated circuit with electrically programmable fuse
AssigneeKabushiki Kaisha Toshiba
InventorAtsushi Sueoka
Life of this patent
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Abstract
A semiconductor integrated circuit comprises an electrically programmable fuse element that is provided between a programming voltage node and a latch node, and a latch circuit that latches a voltage at the latch node. The semiconductor integrated circuit further comprises a current source that controls a magnitude of an operation current of the latch circuit, and controls a resistance determination value for determining whether the fuse element is programmed or not.
Claims14
A semiconductor integrated circuit comprising:
- an electrically programmable fuse element that is provided between a programming voltage node and a latch node;
- a latch circuit that latches a voltage at the latch node;
- and
- a current source that controls a magnitude of an operation current of the latch circuit, and controls a resistance determination value for determining whether the fuse element is programmed or not.
1 more element
A semiconductor integrated circuit comprising:
- an electrically programmable fuse element that is provided between a programming voltage node and a resistance value monitor terminal;
- a constant current source that generates a current, which is caused to flow through the fuse element;
- and
- a comparator that compares a voltage, which is generated by the current that is caused to flow through the fuse element, and a reference voltage, and determines whether the fuse element is programmed or not.
1 more element
A semiconductor integrated circuit comprising:
- an electrically programmable fuse element that is provided between a programming voltage node and a latch node;
- a latch circuit that latches a voltage at the latch node;
- a current source that controls a magnitude of an operation current of the latch circuit, and controls a resistance determination value for determining whether the fuse element is programmed or not;
- a constant current source that generates a current, which is caused to flow through the fuse element;
- and
- a comparator that compares a voltage, which is generated by the current that is caused to flow through the fuse element, and a reference voltage, and determines whether the fuse element is programmed or not.
3 more elements
Dependencies are inferred from the claim text.