Background
This study examines how the size and density of platinum nanocrystals affect the trade-off between storing more charge and retaining it for longer in memory devices.
What the study found
The study examines how platinum nanocrystal size and density affect charge storage and retention in metal–oxide–semiconductor (MOS) memory.
It explains changes in storage through the electric field across the tunnel oxide and the probability of electrons tunnelling through it.
Questions and limits
A wider storage window does not establish longer charge retention. The endurance of a complete memory array also needs separate testing.
How to compare the results
Compare nanocrystal size and density distributions, oxide thickness, programming voltage, and how retention time is defined.
Related reading
A silicon nanocrystals based memory
The related paper’s registered abstract describes electron tunnelling and charge storage in silicon nanocrystals. It offers a materials comparison with the platinum storage nodes used here.
Retention times cannot be ranked directly when the oxides and programming conditions differ.
Abstract-based introductionSources used in this summary
This account draws on the abstract and conclusion in the public author-hosted published article. It does not represent a complete review of the article, supplements or raw data. The comparison conditions are suggestions for reading studies together.