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Research update

A non-destructive readout mechanism for ferroelectric capacitors

The demonstration of a non-destructive read operation for FeCAPs presents a milestone towards compute-in-memory applications


Ferroelectric capacitors (FeCAPs) are an energy-efficient alternative to resistive types of memories for analog compute-in-memory (CiM) applications.

However, since conventional read operations for FeCAPs are destructive, the read endurance is limited by the write endurance, which is insufficient for CiM.

Imec and the Georgia Institute of Technology have demonstrated a non-destructive read operation for the first time, enabling fully decoupled read and write endurance.

They achieved a non-destructive read endurance of >1011 and a capacitive memory window of 8.7 (at 0V) – the largest values reported for FeCAPs.