Work in Progress --- Not for Publication 1 ERD WG 4/2/08 Koenigswinter FxF Meeting ERD ITWG Emerging Research Devices Working Group Face-to-Face Meeting.

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Work in Progress --- Not for Publication 1 ERD WG 4/2/08 Koenigswinter FxF Meeting ERD ITWG Emerging Research Devices Working Group Face-to-Face Meeting MEMORY DISCUSSION Hiramoto-san & Akinaga-san STRJ Presentation Victor Zhirnov and Rainer Waser - Facilitating Grand Hotel Steigenburger Petersberg Rheinblick Koenigswinter (near Bonn), Germany Wednesday April 2, :00 a.m. – 1:30 p.m

Work in Progress --- Not for Publication 2 ERD WG 4/2/08 Koenigswinter FxF Meeting Fuse / Antifuse memory? Solid State Electronics 7, 785 (1964) Ag/NiO/Ni Looks like Ionic memory (cation migration type)?

Work in Progress --- Not for Publication 3 ERD WG 4/2/08 Koenigswinter FxF Meeting Fuse / Antifuse memory? Looks like Ionic memory (anion migration type)? Muraoka et al., Matsushita Electric IEDM 2007 Bipolar (+2.0V, -2.2V), 100 ns, 0.18 m CMOS process Similar model: Fujitsu, Sharp, AIST….

Work in Progress --- Not for Publication 4 ERD WG 4/2/08 Koenigswinter FxF Meeting Fuse / Antifuse memory To develop quantitative estimates of performance for the various types of memories Tsunoda et al., (Fujitsu IEDM 2007 Unipolar, 5 ns & <100 A Reset operation, 150 retention Ti:NiO of 0.18 m CMOS process, 150 x 1000 h 5 ns Reset ITRS 2007 Read Time / Demonstrated / Data not available <10ns W/E Time / Demonstrated / 10ns / 5 s 10ns / 10ns

Work in Progress --- Not for Publication 5 ERD WG 4/2/08 Koenigswinter FxF Meeting Ionic effect memory To develop quantitative estimates of performance for the various types of memories Aratani et al., (Sony), Cu-Te: GdO IEDM 2007 ITRS 2007 Read Time / Demonstrated / <50ns <10ns W/E Time / Demonstrated / <50ns <5ns Write cycles / Demonstrated / >1E6 >1E7 (Read cycles >1E11 by 10ns-pulse) Schindler et al., (Juelich), Cu-SiO 2, APL 92, (2008) Write energy ~ 24nJ (5E-14J by an order ITRS 2007)

Work in Progress --- Not for Publication 6 ERD WG 4/2/08 Koenigswinter FxF Meeting STRJ-ERD Q1, Transition criteria from ERD to PIDS? Production Q2, Classification of ER Resistance-based Memory What is the difference between Fuse/Antifuse and Ionic memories

Work in Progress --- Not for Publication 7 ERD WG 4/2/08 Koenigswinter FxF Meeting STRJ-ERD Q2, Classification of ER Resistance-based Memory OUT: Insulator Resistance Change Memory IN: Fuse / Antifuse memory IN: Ionic memory ex. cation migration, Ag 2 S, Cu 2 S ex. anion migration IN: Electronic effect memory ex. Charge trapping, space-charge-limited ex. Mott transition (no experimental data) ex. Ferroelectric barrier effect Waser, MRS 2008 Spring Meeting

Work in Progress --- Not for Publication 8 ERD WG 4/2/08 Koenigswinter FxF Meeting A1, Classification of ER Resistance-based Memory Thermal effect memory: # Phase change RAM, >>> PIDS # Fuse / Antifuse memory, Pt/NiO/Pt Ionic effect memory # cation migration # anion migration, STO + Pt/NiO/Pt Electronic effect memory ex. Charge trapping ex. Mott transition (no experimental data) ex. Ferroelectric barrier effect Waser, MRS 2008 Spring Meeting

Work in Progress --- Not for Publication 9 ERD WG 4/2/08 Koenigswinter FxF Meeting A2, Classification of ER Resistance-based Memory (Thermal effect memory): # Phase change RAM Filament memory # complex metal oxide # chalcogenide (glass) # organic materials, incl. Cu:TCNQ Electronic effect memory ex. Charge trapping ex. Mott transition (no experimental data) ex. Ferroelectric barrier effect YAGAMI, STRJ ERD

Work in Progress --- Not for Publication 10 ERD WG 4/2/08 Koenigswinter FxF Meeting A3, Classification of ER Resistance-based Memory Thermal Phase change memory: # PCRAM, >>> PIDS, Nanowired PRAM # Fuse / Antifuse memory, Pt/NiO/Pt, Electrochemical memory # cation migration, Cu:TCNQ? # anion migration, so-called ReRAM Electronic effect memory ex. Charge trapping ex. Mott transition (no experimental data) ex. Ferroelectric barrier effect AKINAGA, STRJ ERD Agreed