SamsungPatent applicationChips & hardwareInterest 3/10

Samsung patents memory chip that adjusts electrical resistance based on temperature

Patent drawing from the official filing.

This filing describes a method for memory chips to automatically adjust their electrical resistance settings, known as impedance, to ensure stable data transfer. The system checks if the new resistance setting falls within a safe range that accounts for the chip's current temperature before applying it.

Why it mattersThis is a routine technical improvement that helps memory chips maintain reliable performance as they heat up or cool down during normal use.

In the filing’s own words

A memory device includes: a memory cell array; an input/output circuit controlling inputting and outputting data stored in the memory cell array; an impedance calibration circuit generating an impedance calibration code based on an external resistor connected to an impedance pad for application to the input/output circuit as an applied impedance calibration code; and a calibration control circuit comparing a new impedance calibration code received from the impedance calibration circuit with a calibration code range for generating a calibration code update flag when the new impedance calibration code is included in the calibration code range. The impedance calibration circuit updates the applied impedance calibration code with the new impedance calibration code when receiving the calibration code update flag.

What exactly they claim (claim 1)

1. An impedance calibration method of a memory device, the method comprising: performing an impedance calibration operation to generate a new impedance calibration code; determining whether the new impedance calibration code is included in a first calibration code range; receiving a temperature code when the new impedance calibration code is included in the first calibration code range; determining whether the new impedance calibration code is included in a second calibration code range corresponding to the temperature code; and updating a previous impedance calibration code with the new impedance calibration code when the new impedance calibration code is included in the second calibration code range.

Facts

Company: Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title: MEMORY DEVICE AND METHOD FOR CALIBRATING IMPEDANCE THEREOF
Publication number: US20260331199A1
Application number: 19719799
Filed: Jun 25, 2026
Published: Oct 22, 2026
Inventors: 4
Claims: 20

Classified under

G11C 29/1201 Physics & computingG11C 7/04 Physics & computingG11C 29/46 Physics & computingG11C 2207/2254 Physics & computing

Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Chips & hardware

Samsung patents chip that combines camera and screen Oct 13, 2026
Samsung patents faster chip testing using machine learning Sep 1, 2026
Samsung patents radar method to pinpoint target direction more accurately Sep 1, 2026
Samsung patents memory chip that searches data by content, not address Sep 1, 2026
Samsung patents chip design that skips empty data to speed up AI Sep 1, 2026

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.