Invention Application
- Patent Title: Ferroelectric Memory with Shunt Device
- Patent Title (中): 带分流装置的铁电存储器
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Application No.: US13240420Application Date: 2011-09-22
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Publication No.: US20120170349A1Publication Date: 2012-07-05
- Inventor: Michael Patrick Clinton , Steven Craig Bartling , Scott Summerfelt , Hugh McAdams
- Applicant: Michael Patrick Clinton , Steven Craig Bartling , Scott Summerfelt , Hugh McAdams
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Main IPC: G11C11/22
- IPC: G11C11/22

Abstract:
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.
Public/Granted literature
- US08508974B2 Ferroelectric memory with shunt device Public/Granted day:2013-08-13
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