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A Versatile, Voltage-Pulse Based Read and Programming Circuit for Multi-Level RRAM Cells

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00006466
URN to cite this document: urn:nbn:de:bvb:703-epub-6466-9

Title data

Pechmann, Stefan ; Mai, Timo ; Völkel, Matthias ; Mahadevaiah, Mamathamba K. ; Perez, Eduardo ; Perez-Bosch Quesada, Emilio ; Reichenbach, Marc ; Wenger, Christian ; Hagelauer, Amelie:
A Versatile, Voltage-Pulse Based Read and Programming Circuit for Multi-Level RRAM Cells.
In: Electronics. Vol. 10 (2021) Issue 5 . - No. 530.
ISSN 2079-9292
DOI der Verlagsversion: https://doi.org/10.3390/electronics10050530

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Abstract

In this work, we present an integrated read and programming circuit for Resistive Random Access Memory (RRAM) cells. Since there are a lot of different RRAM technologies in research and the process variations of this new memory technology often spread over a wide range of electrical properties, the proposed circuit focuses on versatility in order to be adaptable to different cell properties. The circuit is suitable for both read and programming operations based on voltage pulses of flexible length and height. The implemented read method is based on evaluating the voltage drop over a measurement resistor and can distinguish up to eight different states, which are coded in binary, thereby realizing a digitization of the analog memory value. The circuit was fabricated in the 130 nm CMOS process line of IHP. The simulations were done using a physics-based, multi-level RRAM model. The measurement results prove the functionality of the read circuit and the programming system and demonstrate that the read system can distinguish up to eight different states with an overall resistance ratio of 7.9.

Further data

Item Type: Article in a journal
Keywords: analog circuit; memory programming; programming circuit; read circuit; resistive memory; RRAM; voltage pulse
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University: Faculties > Faculty of Engineering Science > Former Professors > Chair Communication Electronics - Univ.-Prof. Dr.-Ing. Amélie Marietta Hagelauer
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Communication Electronics
Faculties > Faculty of Engineering Science > Former Professors
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-6466-9
Date Deposited: 06 Jul 2022 08:45
Last Modified: 06 Jul 2022 08:45
URI: https://epub.uni-bayreuth.de/id/eprint/6466

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