Invention Grant
- Patent Title: Multi-tier threshold voltage offset bin calibration
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Application No.: US17880980Application Date: 2022-08-04
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Publication No.: US11783901B2Publication Date: 2023-10-10
- Inventor: Kishore Kumar Muchherla , Shane Nowell , Mustafa N. Kaynak , Karl D. Schuh , Jiangang Wu , Devin M. Batutis , Xiangang Luo
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: LOWENSTEIN SANDLER LLP
- Main IPC: G11C16/26
- IPC: G11C16/26 ; G11C16/34 ; G06F3/06 ; G06F11/07 ; G11C16/04

Abstract:
A system includes a memory device and a processing device. The processing device performs, at a first frequency, a first scan of a page of a block family that measures a first data state metric and identifies a specific bin corresponding to a measured value for the first data state metric. Processing device updates a bin, to which the page is assigned, to match the specific bin. Processing device performs, at a second frequency higher than the first frequency, a second scan of the page to measure a second data state metric for read operations performed using a threshold voltage offset value from each of multiple bins. Processing device updates the bin, to which the page is assigned for the specified die, to match a second bin having the threshold voltage offset value that yields a lowest read bit error rate from the second scan.
Public/Granted literature
- US20220375530A1 MULTI-TIER THRESHOLD VOLTAGE OFFSET BIN CALIBRATION Public/Granted day:2022-11-24
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