Invention Grant
- Patent Title: Word line dependent temperature compensation scheme during sensing to counteract cross-temperature effect
- Patent Title (中): 字线依赖温度补偿方案在传感过程中抵消交叉温度的影响
-
Application No.: US14574114Application Date: 2014-12-17
-
Publication No.: US09543028B2Publication Date: 2017-01-10
- Inventor: Biswajit Ray , Mohan Dunga , Changyuan Chen
- Applicant: SANDISK TECHNOLOGIES INC.
- Applicant Address: US TX Plano
- Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee Address: US TX Plano
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C16/26
- IPC: G11C16/26 ; G11C16/04 ; G11C7/04 ; G11C11/56 ; G11C16/34

Abstract:
Methods for reducing cross-temperature dependent word line failures using a temperature dependent sensing scheme during a sensing operation are described. In some embodiments, during a read operation, the sensing conditions applied to memory cells within a memory array (e.g., the sensing time, source line voltage, or bit line voltage) may be set based on a temperature of the memory cells during sensing and a word line location of the memory cells to be sensed. In one example, the memory array may comprise a NAND memory array that includes a NAND string and the sensing time for sensing a memory cell of the NAND string and the source line voltage applied to a source line connected to a source end of the NAND string may be set based on the temperature of the memory cells during sensing and the word line location of the memory cells to be sensed.
Public/Granted literature
Information query