Ferroelectric memory with shunt device
AssigneeTexas Instruments Incorporated
InventorsMichael Patrick Clinton, Steven Craig Bartling, Scott Summerfelt, Hugh McAdams
Life of this patent
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AssigneeTexas Instruments Incorporated
InventorsMichael Patrick Clinton, Steven Craig Bartling, Scott Summerfelt, Hugh McAdams
Estimating the term…
A ferroelectric memory device includes a shunt switch configured to short both sides of the ferroelectric capacitor of the ferroelectric memory device. The shunt switch is configured therefore to remove excess charge from around the ferroelectric capacitor prior to or after reading data from the ferroelectric capacitor. By one approach, the shunt switch is connected to operate in reaction to signals from the same line that controls accessing the ferroelectric capacitor. So configured, the high performance cycle time of the ferroelectric memory device is reduced by eliminating delays used to otherwise drain excess charge from around the ferroelectric capacitor, for example by applying a precharge voltage. The shunt switch also improves reliability of the ferroelectric memory device by ensuring that excess charge does not affect the reading of the ferroelectric capacitor during a read cycle.
A method of operating a ferroelectric memory device, the method comprising:
A method comprising:
A ferroelectric memory apparatus comprising:
Dependencies are inferred from the claim text.