Ovonic unified memory(oum)
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This document discusses emerging non-volatile memory technologies and focuses on Ovonic Unified Memory (OUM). It outlines the limitations of current memory technologies like DRAM, RAM, and FLASH. It then explains the fundamentals and operation of OUM, which uses a chalcogenide material that can be switched between amorphous and crystalline structural states by applying electric current to heat the material. The document notes several advantages of OUM, including its non-volatility, high density, simple structure, low cost and scalability. OUM offers improved memory that addresses many of the limitations of present technologies.
Ovonic unified memory(oum)
- 2. Introduction Limitations of present memory technology Fundamentals of emerging memories Ovonic unified memory Amorphous vs. crystalline OUM architecture Basic device operation Features of OUM Advantages of OUM Conclusion References
- 3. † Semiconductors form the fundamental building blocks of the modern electronic world providing the brains and the memory of products all around us from washing machines to super computers † Current memory technologies have a lot of limitations † Material limited scaling - era
- 4. DRAM – volatile & difficult to integrate RAM – high cost & volatile FLASH – slower writes - less number of write/erase cycles Expansion in 2D space
- 6. Most promising one. Material used is CHALCOGENIED Instead of using laser beam, use electric current to heat the material Structural states: Amorphous - high temperature, high current, high resistance Crystalline - low temperature, medium current, low resistance
- 10. † Non volatile † High density † Non destructive read † Highly scalable † Low cost
- 11. Reversible structural phase change Small active storage medium Low voltage single supply High temperature resistance Simple planar device structure Simple manufacturing process Reduced assembly and test costs
- 12. † Optimized OUM † All mechanic dependency † Oum offers low power operation and radiation tolerance
- 13. www.intel.com www.ovonyx.com www.baesystems.com www.aero.org