Analog Superposition Increases Effective PCM Storage Density (IBM Research Europe)

What happened

Researchers at IBM Research Europe published the paper "Superposed analog memory for vector storage in neural networks" and demonstrated an analog phase-change memory (PCM) architecture that stores multiple AI vectors in superposition, increasing effective storage density with a tunable accuracy tradeoff. Tests on prototype PCM hardware showed inference accuracy close to full-precision software. This is a research demonstration; the source does not state any production, pricing, or supply impact.

Impact and signal

Affected components and suppliers

Source and time

Source: Semiconductor Engineering · 10/27/2026 · View original source