We are now living in a world driven by various electronic equipments. 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. Semi conductors consist of array of transistors with each transistor being a simple switch between electrical 0 and 1. Now often bundled together in there 10â„¢s of millions they form highly complex, intelligent, reliable semiconductor chips, which are small and cheap enough for proliferation into products all around us.
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SEMINAR REPORT ON OVONIC UNIFIED MEMORY


  OVONIC UNIFIED MEMORY.ppt (Size: 1.32 MB / Downloads: 6)

Memory-information retention

Various forms of storage are:
Primary storage
Secondary and off-line storage
Tertiary and database storage
Network storage
Characteristics of storage are:
Volatility of information
Ability to access non-contiguous information
Ability to change information
Classification of the Memory on the bases of Volatility of information is:
Volatile Memory
Non-volatile Memory

Nonvolatile Memory
Protection of data in the event of power loss
Periodic refreshing
Modern Approaches of Nonvolatile Memory
FRAM: Technique used- ferroelectricity
MRAM: Technique used-ferromagnetism
OUM: Technique used- phase changes in the thin-film
3DM: Technique used- multiple layers of active circuitry on the silicon

Ovonic Unified Memory

Definition:
Phase Change Memory
Changes the state
stores information
excellent solid-state memory properties.
Ovonyx
microelectronics memory technology
developed by Mr. Stanford Ovshinsky
Energy Conversion Devices (ECD) Inc.
Ovonic unified memory –
derived from ''Ovshinsky'' and ''electronic''.
known as phase change memory
OUM allows the rewriting of CD & DVDs .