Invention Grant
- Patent Title: Program VT spread folding for NAND flash memory programming
- Patent Title (中): 用于NAND闪存编程的程序VT扩展折叠
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Application No.: US14139219Application Date: 2013-12-23
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Publication No.: US09099183B2Publication Date: 2015-08-04
- Inventor: Charan Srinivasan , Pranav Kalavade , Shyam Sunder Raghunathan , Krishna K. Parat
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Alpine Technology Law Group LLC
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C16/10 ; G11C16/28 ; G11C11/56 ; G11C16/34 ; G11C16/08

Abstract:
Embodiments of methods and systems disclosed herein provide a NAND cell programming technique that results in a substantially reduced Tprog to complete a programming operation. In particular, embodiments of the subject matter disclosed herein utilize two Vpgm programming pulses during each programming iteration, or loop. One of the two programming pulses corresponds to a conventional programming Vpgm pulse and the second pulse comprises a programming pulse that having a greater Vpgm that is greater than the conventional programming Vpgm so that the slow cells are programmed to PV in fewer pulses (iterations), thereby effectively simultaneously programming and verifying cells having different programming speeds.
Public/Granted literature
- US20150179267A1 PROGRAM VT SPREAD FOLDING FOR NAND FLASH MEMORY PROGRAMMING Public/Granted day:2015-06-25
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