期刊
IEEE TRANSACTIONS ON NANOTECHNOLOGY
卷 16, 期 4, 页码 677-686出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNANO.2017.2703985
关键词
Embedded non-volatile memory; memory architecture; resistive switching memory; RRAM
类别
资金
- French national projects ANR-DIPMEM
Emerging nonvolatile memories (NVM) based on resistive switching mechanism such asRRAMare under intense R&D investigation by both academics and industries. They provide high write/read speed, low power, and good endurance (e.g., > 1012) beyond mainstream NVMs, enabling them to be a good candidate for Flash replacement in microcontroller unit. This replacement could significantly decrease the power consumption and the integration cost on advanced CMOS nodes. This paper presents first the HfO2 - based RRAM technology and the associated compact model, which includes related physics and model card fitting experimental electrical characterizations. The 128 kb memory architecture based on RRAM technology and 28 nm fully depleted silicon on insulator (FDSOI) CMOS core process is presented with a bottom-up approach, starting from the bit-cell definition up to the complete memory architecture implementation. The key points of the architecture are the use of standard logic MOS exclusively, avoiding any high voltage MOS usage, program/verify procedure to mitigate cycle to cycle variability issue and direct bit-cell read access for characterization purpose. The proposed architecture is validated using postlayout simulations on MOS and RRAM corner cases.
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