Samsung patents stable base layer for new magnetic memory chips
Samsung describes a magnetic memory structure that uses a heat-resistant nitride layer to help grow a specific type of magnetic material. This setup allows the magnetic layer to stand upright, which is needed for certain high-density memory designs.
In the filing’s own words
A magnetic memory device includes a substrate, a thermally stable nitride seed layer substantially oriented in a (001) direction above the substrate, a chemical templating layer above the thermally stable nitride seed layer, and a magnetic layer above the chemical templating layer. The chemical templating layer includes a binary alloy having a CsCl prototype structure, and the magnetic layer includes a Heusler compound having perpendicular magnetic anisotropy (PMA).
What exactly they claim (claim 1)
1. A magnetic memory device comprising: a substrate; a thermally stable nitride seed layer above the substrate, the thermally stable nitride seed layer having a (001) crystal orientation; a chemical templating layer above the thermally stable nitride seed layer, the chemical templating layer comprising a binary alloy having a CsCl prototype structure; and a magnetic layer above the chemical templating layer, the magnetic layer comprising a Heusler compound having perpendicular magnetic anisotropy (PMA).
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Nitride seed layer with high thermal stability for growth of perpendicularly magnetized Heusler films
- Patent number
- US12757640B2
- Application number
- 18218920
- Filed
- Jul 6, 2023
- Granted
- Oct 6, 2026
- Inventors
- 6
- Claims
- 22
Classified under
H10N 50/80 Electricity & electronicsH01F 10/3254 Electricity & electronicsH01F 10/3272 Electricity & electronicsH10B 61/00 Electricity & electronicsH10N 50/01 Electricity & electronicsH10N 50/20 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.