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US 9,431,128 B2Granted
Semiconductor device including fuse circuit
AssigneeMicron Technology, Inc.
InventorsYusuke Sakamoto, Kenji Yoshida
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an apparatus that includes a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element, and a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal, the third voltage different from the second voltage.
Claims17
An apparatus comprising:
- a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element;
- and
- a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal, the third voltage different from the second voltage,
- wherein a difference in voltage between the first and third voltages is less than a difference in voltage between the first and second voltages.
1 more element
An apparatus comprising:
- a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage, or a second voltage responsive to a state of the fuse element;
- and
- a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal, the third voltage different from the second voltage,
- wherein the second voltage is greater in absolute value than the third voltage.
1 more element
An apparatus comprising:
- a fuse circuit including a fuse element the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element;
- and
- a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal, the third voltage different from the second voltage,
- wherein the fuse circuit is configured to be supplied with the first voltage during a first period of time and change its voltage to the second voltage responsive to the state of the fuse element during, a second period of time following the first period of time, and
- wherein the fuse circuit is configured to change its voltage to the second voltage during the second period of time on condition that the fuse element is programmed.
2 more elements
An apparatus comprising:
- a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element;
- a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first output signal the third voltage different from the second voltage;
- and
- a P conductivity type transistor comprising a gate supplied with the third voltage and a channel between the sense circuit and the fuse circuit.
1 more element
An apparatus comprising:
- a fuse circuit including a fuse element, the fuse circuit configured to provide a first output signal having a first voltage or a second voltage responsive to a state of the fuse element;
- a sense circuit configured to provide a second output signal having the first voltage or a third voltage responsive to the first out signa1, the third voltage different from the second voltage;
- and
- an N conductivity type transistor comprising a gate supplied with the third voltage and a channel between the sense circuit and the fuse circuit.
1 more element
An apparatus comprising:
- a pumping circuit configured to be supplied with a first voltage and a second voltage and perform a pumping operation based on the first voltage and the second voltage to generate a third voltage at an output node;
- a sense circuit;
- and
- an electrical fuse including a first node coupled to the output node of the pumping circuit and a second node coupled to the sense circuit;
- wherein the pumping circuit is further configured to supply the third voltage to the first node of the electrical fuse when the sense circuit amplifies a voltage at the second node of the electrical fuse.
2 more elements
An apparatus comprising:
- a fuse circuit including a fuse element;
- a sense circuit;
- a first transistor coupled between a first node of the fuse circuit and an input node of the sense circuit, the first transistor having a gate supplied with a constant voltage;
- and
- a second transistor coupled in series to the first transistor between the first node of the fuse circuit and the input node of the sense circuit, wherein the second transistor is configured to turn on during a first mode and turn off during a second mode.
2 more elements
Dependencies are inferred from the claim text.