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

++

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