Micron technology, inc. (20250118366). Drift Aware Read Operations
Drift Aware Read Operations
Organization Name
Inventor(s)
Karthik Sarpatwari of Boise ID US
Nevil N. Gajera of Meridian ID US
Lingming Yang of Meridian ID US
John F. Schreck of Lucas TX US
Drift Aware Read Operations
This abstract first appeared for US patent application 20250118366 titled 'Drift Aware Read Operations
Original Abstract Submitted
systems, methods and apparatus to read target memory cells having an associated reference memory cell configured to be representative of drift or changes in the threshold voltages of the target memory cells. the reference cell is programmed to a predetermined threshold level when the target cells are programmed to store data. in response to a command to read the target memory cells, estimation of a drift of the threshold voltage of the reference is performed in parallel with applying an initial voltage pulse to read the target cells. based on a result of the drift estimation, voltage pulses used to read the target cells can be modified and/or added to account for the drift estimated using the reference cell.