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US 6,724,245 B2Granted
Boosting circuit
AssigneeHynix Semiconductor Inc.
InventorsYi Jin Kwon, Dae Han Kim
Life of this patent
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Abstract
The present invention relates to a boosting circuit. A boosting voltage (VBOOT) is dropped to a given voltage level through a pre-select clamp circuit and the boosting voltage (VBOOT) is again dropped through a clamp circuit, depending on the power supply voltage, so that a final target word line voltage is generated. Accordingly, a read access time is rapid upon a read operation, the current consumption is minimized and a stabilized word line voltage can be generated.
Claims15
A boosting circuit, comprising:
- a bootstrapping circuit for boosting a first voltage to output a second voltage;
- a pre-select clamp circuit selectively driven by a bias voltage to drop the second voltage to a given voltage level, wherein the bias voltage is determined by the first voltage;
- and
- a clamp circuit for dropping the second voltage that is dropped by the pre-select clamp circuit to a target voltage.
1 more element
Dependencies are inferred from the claim text.