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2 Day Course
Flash memory is reliable, low-cost, low-power, semiconductor-based storage. After more than 20 years of development, flash is hitting the mainstream and changing the data storage industry. Dell is offering laptop computers with no hard disk drives – only flash-based “solid state drives.” Intel writes about incorporating flash onto its motherboards. Microsoft’s Windows Vista TM operating system is counting on flash to change the boot up experience for millions of computer users. Even hard disk drive manufacturers are adding flash as a non-volatile cache to their new “hybrid hard disk drives.” Experienced storage companies and many new to the industry are developing their flash strategies.
This two-day seminar from KnowledgeTek provides data storage professionals a clear understanding of the concepts, possibilities, and drawbacks of flash storage. It is presented for those with a technical background, but not necessarily a deep knowledge of semiconductors or hard disk drives. You will learn what flash is and isn’t; the basics of how it works; why flash has beaten hard disk drive in some applications; challenges and opportunities for its wider adoption; skepticism for claims of reliability, low-cost, and low-power; limitations for its future; and what is poised to replace it.
Storage Basics
Requirements of a Storage System
Interfaces
ECC
Performance Metrics
Flash Basics
Semiconductor Memory
High-level Flash Structure & Terminology
- Planes, blocks, pages
- NAND and NOR
- Erase, program, read
- SLC and MLC
- Wear-leveling
Markets
Typical Specs
Example Application
Flash Technology
Transistor Structure & Function
The Floating Gate Device
Program & Erase
Measurements & Materials
Fabrication & Testing
ITRS Roadmap
Minimum Feature Size
Semiconductor Manufacturing Overview
Memory Testing
Storage Devices: Competing or Converging?
Hard Disk Drive
Solid State Disk
Hybrid Hard Drive
Turbo Memory Alternative (formerly "Robson") |
Wear-Leveling
Wear Mechanism in Flash
Static & Dynamic Wear-Leveling
Review of the Steps in a Typical Application
Relation to Data Retention
Reading Flash Cells
Commands & Voltages
Complications
- Read Disturb
- Program Disturb
PRML possibilities for NAND Flash
Interfaces & File Systems
NVMHCI (Non-Volatile Memory Host Controller Interface)
FTL (Flash Translation Layer)
FFS (Flash File System)
Future Trends
Another Technology Transition
More Levels per Cell
More ECC
Possible NAND Flash Replacements
- FRAM
- MRAM
- STT-RAM
- PCM
- Charge Trap Flash
- Nanocrystal
- FinFET
Observations & Conclusions
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