International Business Machines Corporation

Yujun Xie

Yu Zhu

Wanki Kim

Chung H Lam

Qinghuang Lin

Matthew Joseph BrightSky

Lele Peng

The embodiments described herein facilitate performing bipolar switching of a confined phase change memory (PCM) with a metallic liner, wherein the phase change memory and the metallic liner are located between a first electrode and a second electrode of a semiconductor structure, wherein a first voltage is applied to the first electrode while the second electrode is grounded, and wherein a second voltage is applied to the second electrode while the first electrode is grounded. The bipolar switching can be performed so as to produce a plurality of resistance states. Thus, this confined PCM can be utilized as a multi-level cell (MLC) memory.

Bipolar switching operation of confined phase change memory for a multi-level cell memory

A solid-state rechargeable 3D microbattery is provided that has improved power density, energy density, and cycle lifetimes. These improvements are afforded by providing a solid-state electrolyte that is composed of crystalline LiAlTi(PO), wherein x is from 0 to 2. The solid-state electrolyte that is composed of crystalline LiAlTi(PO) has a high ionic conductivity (which is greater than 10Siemens/cm) as well as high chemical stability.

LiAlTi(PO)solid-state thin film electrolyte for 3D microbattery and method of fabrication

Techniques for void reduction in phase change memory (PCM) devices are provided. In one embodiment, the system is provided that comprises a PCM device comprising a first electrode and a second electrode. The system can further comprise a first connector coupled to the first electrode and that applies a negative voltage to the first electrode, and a second connector coupled to the second electrode and that applies a ground voltage to the second electrode, wherein applying the negative voltage to the first electrode and applying the ground voltage to the second electrode comprises negatively biasing the PCM device. The system can further comprise the first connector applying the positive voltage to the first electrode, and the second connector applying a ground voltage to the second electrode, wherein applying the positive voltage to the first electrode and applying the ground voltage to the second electrode comprises positively biasing the PCM device.

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New Haven, CT, United States of America

Yujun Xie