Details

Autor(en) / Beteiligte

• Perez, E.
• Grossi, A.
• Zambelli, C.
• Olivo, P.
• Roelofs, R.
• Wenger, C.

Titel

Reduction of the Cell-to-Cell Variability in Hf1-xAlxOy Based RRAM Arrays by Using Program Algorithms

Ist Teil von

• IEEE electron device letters, 2017-02, Vol.38 (2), p.175-178

Ort / Verlag

IEEE

Erscheinungsjahr

2017

Quelle

IEEE Xplore

Beschreibungen/Notizen

• In this letter, we propose an effective route to reduce the cell-to-cell variability in 1T-1R-based random access memories (RRAM) arrays by combining the excellent switching performance of Hf 1-x Al x O y with an optimized incremental step pulse with verify algorithm for programming. The strongly reduced cell-to-cell variability improves the thermal and post-programming stability of the arrays, which is relevant for many applications of the RRAM technology. Finally, the retention study at 150 °C enables the prediction of the data storage capability.