Power voltage supplier of semiconductor memory device
AssigneeHynix Semiconductor Inc.
InventorsJun-Gi Choi, Yong-Kyu Kim
Life of this patent
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Abstract
The present invention provides a power voltage supplier for stably supplying a noise-free power voltage without increasing a size of a reservoir capacitor by employing a sharing scheme of the reservoir capacitor. The power voltage supplier of a semiconductor memory device includes: a first power voltage supply line for supplying a first power voltage; a second power voltage supply line for supplying a second power voltage; a first reservoir capacitor for supplying the first and the second power voltages stably; and a reservoir capacitor controller for selectively connecting the first reservoir capacitor to the first power voltage supply line or the second power voltage supply line.
Claims6
1-16. (canceled)
A semiconductor memory device, comprising:
- a first power voltage supply line for supplying a first power voltage to overdrive at least one bit line sense amplifier with the first power voltage during a predetermined time at an initial driving stage of the bit line sense amplifier;
- a second power voltage supply line for supplying a second power voltage to drive at least on word line with the second power voltage;
- a first reservoir capacitor for supplying the first and the second power voltages stably;
- and
- a reservoir capacitor controller for selectively connecting the first reservoir capacitor either to the first power voltage supply line or the second power voltage supply line, wherein the first power voltage supply line is connected to the first reservoir capacitor during the predetermined time.
Dependencies are inferred from the claim text.