nanoram
Post on 18-Nov-2014
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JODHPUR INSTITUTE OF ENGINEERING &JODHPUR INSTITUTE OF ENGINEERING & TECHNOLOGYTECHNOLOGY
NITESH KUMAR TATERNITESH KUMAR TATERVIII SEM,CSE
NANO-RAMNANO-RAM
CONTENTSCONTENTS INTRODUCTION ABOUT NANOTECHNOLOGY APPLICATION NANO-RAM HISTORY CARBON NANOTUBE STORAGE IN NRAM ADVANTAGES LIMITATIONS USES OF NRAM QUERIES
What isWhat is
techntechnologyology
nananono
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Nano medicineFiltrationEnergyRecycling of batteries Information and communicationMemory StorageNovel semiconductor devices Novel optoelectronic devicesDisplaysQuantum computersAerospaceRefineriesCosmeticsAgriculture
Random Access Memory
Use for data storage
Volatile Memory
Two Types
A. SRAM
B. DRAM
Nanotechnology since 1960s
Product of Nanotechnology
NRAM invented by Dr.Thomas Rueckes
(Nantero’s Chief Technology Officer)
Non volatile memory
Faster & denser
Large Data storage
Carbon nanotube
Developed by Sumio Iijima
Allotrope of Carbon
Stronger then Steel
Hard as Diamond
Active memory element
length-to-diameter ratio of up
to 132,000,000:1,
Nantero has created multiple prototype devices, including an array of ten billion suspended nano tube junctions on a single silicon wafer.
NRAM technology will achieve very high memory densities: at least 10-100 times memory our current best.
The “up” position representing bit zero(off)and the “down” position representing bit one(On)
AdvantagesVery small in size.Low power consumption
DisadvantageHigh costRequirement of high precisionOccurrence of impurities
InterconnectsInterconnects
Carbon nanotube ribbonsCarbon nanotube ribbons
SupportsSupports
Oxide layerOxide layer
Silicon waferSilicon wafer
ElectrodeElectrode
• Nano tubes suspended on insulating lands over a metal electrode.
• Some nano tubes lie above the electrode
(13 nm)
By positioning of charges.
Data retained until overwritten or resetted.
An electric field moves over array of
nanotubes.
Read and write by an electric field
When reading an OFF state no current flows from the carbon nanotube ribbon to the electrode
When reading an ON state a current passes from the carbon nanotube to the electrode
Permanently nonvolatile
High speed similar to DRAM/SRAM
High density similar to DRAM
Unlimited lifetime
Low power consumption
Data storage
CMOS-compatible manufacturing
process
Computer and Laptops (Enabling instant –on performance, with no for boot up) Mobile devices (Faster storage of more data for PDA’s and handhelds) Embedded memory (More powerful microprocessor, microcontroller, other logic device) High speed network server Faster and denser
• Nonvolatile memories will enable instant booting of computers.
• Large memories can be build with nanotube technology.
• Nonvolatile memories offer much better performance combined with data storage when the power is turned OFF.
Over supply of DRAM
Is relatively costly
NRAM is still in research phase
We could say that the prospects of nanotechnology are very bright.
Nanotechnology will be an undeniable force in near future
Beginning &usage of NRAM will give rise to instant ON computers
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