Invention Grant
- Patent Title: Analog memories utilizing ferroelectric capacitors
- Patent Title (中): 使用铁电电容器的模拟存储器
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Application No.: US12956845Application Date: 2010-11-30
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Publication No.: US08760907B2Publication Date: 2014-06-24
- Inventor: Joseph T. Evans, Jr. , Calvin B. Ward
- Applicant: Joseph T. Evans, Jr. , Calvin B. Ward
- Applicant Address: US NM Albuquerque
- Assignee: Radiant Technologies, Inc.
- Current Assignee: Radiant Technologies, Inc.
- Current Assignee Address: US NM Albuquerque
- Agent Calvin B. Ward
- Main IPC: G11C11/22
- IPC: G11C11/22

Abstract:
A ferroelectric memory having a plurality of ferroelectric memory cells, each ferroelectric memory cell including a ferroelectric capacitor is disclosed. The ferroelectric memory includes read and write lines and a plurality of ferroelectric memory cell select buses, one select bus corresponding to each of the ferroelectric memory cells. Each of the ferroelectric memory cells includes first and second gates for connecting the ferroelectric memory cell to the read line and the write line, respectively, in response to signals on the ferroelectric memory cell select bus corresponding to that ferroelectric memory cell. A write circuit causes a charge to be stored in the ferroelectric capacitor of the ferroelectric memory cell currently connected to the write line, the charge having a value determined by a data value having at least three states. A read circuit measures the charge stored in the ferroelectric capacitor of the ferroelectric memory cell currently connected to the read line to generate an output value, the output value corresponding to one of the states.
Public/Granted literature
- US08233307B2 Analog memories utilizing ferroelectric capacitors Public/Granted day:2012-07-31
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