WO2002082504A3 - Data restore in thyristor-based memory - Google Patents

Data restore in thyristor-based memory Download PDF

Info

Publication number
WO2002082504A3
WO2002082504A3 PCT/US2002/010705 US0210705W WO02082504A3 WO 2002082504 A3 WO2002082504 A3 WO 2002082504A3 US 0210705 W US0210705 W US 0210705W WO 02082504 A3 WO02082504 A3 WO 02082504A3
Authority
WO
WIPO (PCT)
Prior art keywords
thyristor
restore
based memory
current
conducting state
Prior art date
Application number
PCT/US2002/010705
Other languages
French (fr)
Other versions
WO2002082504A2 (en
Inventor
Farid Nemati
Hyun-Jin Cho
Robert Homan Igehy
Original Assignee
T Ram Inc
Farid Nemati
Hyun-Jin Cho
Robert Homan Igehy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T Ram Inc, Farid Nemati, Hyun-Jin Cho, Robert Homan Igehy filed Critical T Ram Inc
Priority to AU2002252593A priority Critical patent/AU2002252593A1/en
Publication of WO2002082504A2 publication Critical patent/WO2002082504A2/en
Publication of WO2002082504A3 publication Critical patent/WO2002082504A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/39—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using thyristors or the avalanche or negative resistance type, e.g. PNPN, SCR, SCS, UJT

Abstract

A dynamically-operating restoration circuit (106) is used to apply a voltage or current restore pulse signal to thyristor-based memory cells (108) and therein restore data in the cell (108) using the internal positive feedback loop of the thyristor (110). In one example implementation, the internal positive feddback loop in the thyristor (110) is used to restore the conducting state of a device after the thyristor current drops below the holding current. A pulse and/or periodic waveform are defined and applied to ensure that the thyristor (110) is not released from its conducting state.
PCT/US2002/010705 2001-04-05 2002-04-05 Data restore in thyristor-based memory WO2002082504A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002252593A AU2002252593A1 (en) 2001-04-05 2002-04-05 Data restore in thyristor-based memory

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28189301P 2001-04-05 2001-04-05
US60/281,893 2001-04-05

Publications (2)

Publication Number Publication Date
WO2002082504A2 WO2002082504A2 (en) 2002-10-17
WO2002082504A3 true WO2002082504A3 (en) 2003-03-06

Family

ID=23079206

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2002/010706 WO2002082453A1 (en) 2001-04-05 2002-04-05 Dynamic data restore in thyristor-based memory device
PCT/US2002/010705 WO2002082504A2 (en) 2001-04-05 2002-04-05 Data restore in thyristor-based memory

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2002/010706 WO2002082453A1 (en) 2001-04-05 2002-04-05 Dynamic data restore in thyristor-based memory device

Country Status (4)

Country Link
US (4) US6885581B2 (en)
EP (1) EP1384232A4 (en)
AU (1) AU2002252593A1 (en)
WO (2) WO2002082453A1 (en)

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Also Published As

Publication number Publication date
US20050185489A1 (en) 2005-08-25
EP1384232A1 (en) 2004-01-28
AU2002252593A1 (en) 2002-10-21
US20060139996A1 (en) 2006-06-29
EP1384232A4 (en) 2008-11-19
WO2002082504A2 (en) 2002-10-17
US7042759B2 (en) 2006-05-09
US7405963B2 (en) 2008-07-29
WO2002082453A1 (en) 2002-10-17
US7961540B2 (en) 2011-06-14
US20040104400A1 (en) 2004-06-03
US6885581B2 (en) 2005-04-26
US20100315871A1 (en) 2010-12-16

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