Resistive Switching Memory Model using...
Transcript of Resistive Switching Memory Model using...
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-Based on Monte Carlo Simulation of O2 diffusions
Resistive Switching Memory Model using NovaTCAD
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Resistive switching physical processes Temperature activated O2 generation and recombination.
Temperature activated hopping of O2 at interstitial sites.
Poole-Frenkel de-trapping model for off state leakage current.
Absorption and release of O2 by electrodes.
Physical based probabilities with field and temperature dependence.
O2 site represented by a circuit node in Crosslight MiniSpice model.
MiniSpice special resistor models: models based on sinh() function and
quantum point contact.
MiniSpice included in NovaTCAD as Mixmode device simulation.
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Resistive switching Monte-Carlo approach Vo generation rate, with Ea as activation energy, delta-phi as barrier lowered by field
Interstitial O2 hopping rate with Eh as activation energy.
[1] Peng Huang, Bin Gao, Bing Chen, Feifei Zhang, Lifeng Liu, Gang Du, Jinfeng Kang, Xiaoyan Liu, "Stochastic Simulation of Forming, SET and RESET Process for Transition Metal Oxide-based Resistive Switching Memory,“ SISPAD 2012, Sept. 5-7, 2012, Denver, CO, USA
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Demo Structure
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A: Initial B: set_half_up C: set_up D: set_half_down E: set_down F: reset_half_up G: reset_up H: reset_half_down I: reset_down
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A I B
C
G A B
C
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A
C
B
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A
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B:
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C:
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D:
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E:
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F:
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G:
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H:
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Use of CSUPREM for TCAD mesh
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Summary Monte Carlo method integrated with NovaTCAD mixmode.
Basic set and reset characteristics demonstrated.
Suitable for TCAD design as well as for research.