Invention Grant
US09373409B2 Systems and methods for reduced program disturb for 3D NAND flash 有权
减少3D NAND闪存编程干扰的系统和方法

Systems and methods for reduced program disturb for 3D NAND flash
Abstract:
Common problems when programming 3D NAND Flash memory having alternating page orientation include the back-pattern effect and pattern-induced program disturb. Improved programming techniques may substantially reduce these problems and, in turn, increase precision when setting memory cells' threshold voltages. Provided are exemplary techniques that combine aspects of “by-word-line” programming and “by-page” programming. As such, each page may be programmed beginning with the memory cells that are closest to string select structures, and memory cells on multiple even or odd pages may be programmed substantially simultaneously.
Public/Granted literature
Information query
Patent Agency Ranking
0/0