millipede memory by prashant mishra
TRANSCRIPT
SEMINAR ON
PRESENTED BY
PRASHANT MISHRA
E.C 3rd Year
MILLIPEDE MEMORY
WHAT ISMILLIPEDE MEMORY??
MILLIPEDE MEMORY is an application of nanotechnology.
It is one of the innovative thoughts from IBM scientists.
Main purpose of it is to have an effective data storage.
Millipede Storage Chips
HOW IT CAME INTO EXISTENSE??
In order to store large amount of data we go for a technology which was in existence 110 years back called
“punchcards”.
from that technology with two differences this millipede memory came into existence
millipede technology is rewritable
able to store more than 3 billion bits of data in a small hole.
Bitwise Data Storage
DEFINITION
Millipede is a non-volatile computer memory stored on nanoscopic pits burned into the surface of a thin polymer-layer , read and written by a MEMS-based probe.
It promises a data density of more than 1 terabit per square inch .
ANIMATED VIEW
An animated view of the Millipede nanomechanical storage device illustrates
how an individual tip creates an indentation in a polymer surface (bottom) and how a large number of such tips are operated in parallel(top).
Technical Background
The core of the Millipede project is a two-dimensional array of v-shaped silicon cantilevers that are 0.5 micrometers thick and 70 micrometers long.
The current experimental setup contains a 3 mm by 3 mm array of 1,024 cantilevers.
CANTILEVER
The core components of probe storage system are a two-dimensional array of silicon probes (cantilevers) and a micro-mechanical scanner which moves the storage medium relative to the array.
WORKING PRINCIPLE
Working of this millipede memory includes reading, writing of data .
Bits are written by heating a resistor built into the cantilever to a temperature of typically 400 degrees Celsius.
For reading, the resistor is operated at lower temperature, typically 300 degrees Celsius.
ADVANTAGES
High density
more reliable
large storage space
Possibility of reading ,writing and overwriting in parallel.
DISADVANTAGES
The main disadvantage existing with this technology is
EXPENSIVE.
Although the data density of a Millipede is high, the capacity of an individual device is expected to be relatively low .
APPLICATIONS
MICRO DRIVERS: These can be used for micro drives,enabling use in small footprint devices like watches, mobile phones and personal media systems.
HIGH CAPACITY HARD DRIVES:: Due to high density,more reliability,high capacity hard drives are choosen.
CONCLUSION
‘Millipede’ technology is a rewritable,and may able to store more than 3 billion bits of data in the space occupied by just one hole in a PUNCH CARD.
