Architectural and Integration Options for 3D NAND Flash Memories
نویسندگان
چکیده
Nowadays, NAND Flash technology is everywhere, since it is the core of the code and data storage in mobile and embedded applications; moreover, its market share is exploding with Solid-State-Drives (SSDs), which are replacing Hard Disk Drives (HDDs) in consumer and enterprise scenarios. To keep the evolutionary pace of the technology, NAND Flash must scale aggressively in terms of bit cost. When approaching ultra-scaled technologies, planar NAND is hitting a wall: both academia researchers and industry worked to cope with this issue for several decades. Then, the 3D integration approach turned out to be the definitive alternative by eventually reaching mass production. This review paper exposes several 3D NAND Flash memory technologies, along with their related integration challenges, by showing their different layouts, scaling trends and performance/reliability features.
منابع مشابه
Reliability of 3D NAND Flash Memories
Reliability represents one of the major antagonist towards the unstoppable technological evolution of hyperscaled NAND memories, since the correct operations must be assured throughout the entire lifetime. In particular, the ability of keeping unaltered the stored information even after a consistent number of write operations and for long times must be guaranteed. A growth of the memory devices...
متن کاملA Survey of 3D Nand Flash Memory
Nand flash memory is an important part of the electronics products. Over the years scientists and engineers have worked hard to make it faster and cost effective. Recently, there has been a realization that current technologies is not capable of further increasing their capacity and at the same time keep the cost down. Keeping in view this limit and the ever increasing need for Nand flash memor...
متن کاملPEN: Design and Evaluation of Partial-Erase for 3D NAND-Based High Density SSDs
3D NAND flash memories promise unprecedented flash storage capacities, which can be extremely important in certain application domains where both storage capacity and performance are first-class target metrics. However a block of 3D NAND flash contains many more pages than its 2D counterpart. This increased number of pages-per-block has numerous ramifications such as the longer erase latency, h...
متن کاملReliability of NAND Flash Memories: Planar Cells and Emerging Issues in 3D Devices
We review the state-of-the-art in the understanding of planar NAND Flash memory reliability and discuss how the recent move to three-dimensional (3D) devices has affected this field. Particular emphasis is placed on mechanisms developing along the lifetime of the memory array, as opposed to time-zero or technological issues, and the viewpoint is focused on the understanding of the root causes. ...
متن کاملMLC NAND Flash memory: Aging effect and chip/channel emulation
This work presents an FPGA-based emulator that can be used for emulating NAND Flash memories, either at the chip or at the channel level, along with the effect of aging on their performance. The emulator is based on a reconfigurable hardware-software architecture, which enables accurate representation of various NAND Flash technologies, focusing especially on MLC cases. The presented architectu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Computers
دوره 6 شماره
صفحات -
تاریخ انتشار 2017