Semiconductor device and method for boosting word line
First Claim
Patent Images
1. A semiconductor device comprising:
- a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage.
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Abstract
A semiconductor device of the present invention includes a booster circuit that boosts a selected word line (WL) to a given voltage higher than a power supply voltage and a charge pump circuit that retains the boosted word line (WL) at the first given voltage. When the booster circuit boosts the word line, the voltage level is degraded as the time goes. However, it is possible to program the memory cell and read out thereof properly by retaining the voltage of the word line with the charge pump circuit.
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Citations
26 Claims
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1. A semiconductor device comprising:
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a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14)
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10. A method comprising the steps of:
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boosting a selected line to a first given voltage higher than a power supply voltage; and
retaining the selected line at the first given voltage.
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15. A wireless communications device, said wireless communications device comprising:
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a flash memory comprising;
a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage;
a processor;
a communications component;
a transmitter;
a receiver; and
an antenna connected to the transmitter circuit and the receiver circuit. - View Dependent Claims (16, 17, 18)
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19. A computing device comprising:
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a processor;
an input component;
an output component;
a memory comprising;
a volatile memory; and
a flash memory comprising;
a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage. - View Dependent Claims (20, 21, 22)
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23. A portable media player comprising:
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a processor;
a cache;
a user input component;
a coder-decoder component; and
a memory comprising;
a flash memory comprising;
a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage. - View Dependent Claims (24, 25)
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26. An image capturing apparatus comprising:
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a sensor for providing image data;
a memory capable of storing said image data, comprising;
a booster circuit that boosts a selected line to a first given voltage higher than a power supply voltage; and
a charge pump circuit that retains the selected line at the first given voltage;
a display operable to display an image from said image data.
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Specification