Samsung patents memory chip design using variable resistors
Samsung has secured a patent for a semiconductor memory device that combines a variable resistor element with a transistor in each memory cell. The design features a substrate with connections on both sides, including a source line on the back surface to manage electrical flow.
In the filing’s own words
A semiconductor memory device includes a first memory cell including a first variable resistor element and a first cell transistor connected to the first variable resistor element through a first source-drain electrode, a substrate having a first surface connected to the second source-drain electrode of the first cell transistor and a second surface opposing the first surface, a first bitline connected to the first source-drain electrode of the first cell transistor through the first variable resistor element, and a first source line disposed on the second surface of the substrate and connected to the second source-drain electrode.
What exactly they claim (claim 1)
1. A semiconductor memory device comprising: a first memory cell comprising a first variable resistor element and a first cell transistor connected to the first variable resistor element through a first source-drain electrode; a substrate comprising a first surface connected to a second source-drain electrode of the first cell transistor and a second surface opposing the first surface; a first bitline connected to the first source-drain electrode of the first cell transistor through the first variable resistor element; a first source line having a first width, arranged on the second surface of the substrate and connected to the second source-drain electrode; and a second source line disposed on the first surface and electrically connected to the first source line.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Semiconductor memory device including memory cells
- Patent number
- US12763142B2
- Application number
- 18818882
- Filed
- Aug 29, 2024
- Granted
- Oct 13, 2026
- Inventors
- 4
- Claims
- 20
Classified under
G11C 13/004 Physics & computingG11C 13/0026 Physics & computingG11C 2013/0054 Physics & computingH10B 61/22 Electricity & electronicsH10B 63/30 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.