IBM Demonstrates Stacked Analog PCM to Boost Vector Storage Density
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On October 28, 2026, researchers at IBM Research Europe published an analog phase-change memory (PCM) architecture. The architecture stores multiple AI vectors in the same storage medium via a stacked approach, improving effective storage density while allowing a tunable trade-off between precision and density. Testing on prototype PCM hardware showed inference accuracy close to full-precision software. The study was released as an arXiv preprint under a CC BY-NC-SA 4.0 license. This is the only development on this event so far, with no follow-up reports yet.
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- Semiconductor Engineering Chips and PackagingAnalog Superposition Increases Effective PCM Storage Density (IBM Research Europe)
Researchers at IBM Research Europe have published an analog phase-change memory (PCM) architecture that stores multiple AI vectors in the same storage medium through superposition, increasing effective storage density while allowing a tunable trade-off between precision and density. Tests on prototype PCM hardware showed inference accuracy close to full-precision software. The study was released as an arXiv preprint under a CC BY-NC-SA 4.0 license.
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