In this letter, we propose a dispersion-aware program-verify algorithm to enable reliable multi-bit operations in HfO2-based RRAM. The significant intrinsic dispersion of the resistive states, typically hindering multi-bit operations, is exploited to devise a program-verify scheme which enables the multi-bit operations with unique properties of failure resilience and adaptability to degradation. We show that an appropriate choice of the algorithm parameters can minimize the average number of cycles needed to program the cell, enabling fast and reliable multi-bit operation. This maximizes the bit/cell ratio and minimizes the dispersion of targeted resistive states.

A Novel Program-Verify Algorithm for Multi-Bit Operation in HfO2 RRAM / Puglisi, Francesco Maria; Wenger, C.; Pavan, Paolo. - In: IEEE ELECTRON DEVICE LETTERS. - ISSN 0741-3106. - STAMPA. - 36:10(2015), pp. 1030-1032. [10.1109/LED.2015.2464256]

A Novel Program-Verify Algorithm for Multi-Bit Operation in HfO2 RRAM

PUGLISI, Francesco Maria;PAVAN, Paolo
2015

Abstract

In this letter, we propose a dispersion-aware program-verify algorithm to enable reliable multi-bit operations in HfO2-based RRAM. The significant intrinsic dispersion of the resistive states, typically hindering multi-bit operations, is exploited to devise a program-verify scheme which enables the multi-bit operations with unique properties of failure resilience and adaptability to degradation. We show that an appropriate choice of the algorithm parameters can minimize the average number of cycles needed to program the cell, enabling fast and reliable multi-bit operation. This maximizes the bit/cell ratio and minimizes the dispersion of targeted resistive states.
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A Novel Program-Verify Algorithm for Multi-Bit Operation in HfO2 RRAM / Puglisi, Francesco Maria; Wenger, C.; Pavan, Paolo. - In: IEEE ELECTRON DEVICE LETTERS. - ISSN 0741-3106. - STAMPA. - 36:10(2015), pp. 1030-1032. [10.1109/LED.2015.2464256]
Puglisi, Francesco Maria; Wenger, C.; Pavan, Paolo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1082346
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