Plastic Memory

PLASTIC MEMORY

Fijo Jose

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IntroductionWhat Is Plastic Memory?Structure Of Plastic MemoryHow Plastic Memory Works?Read / write dataElectronic Microscopic ViewFacts about Plastic MemoryApplications Conclusion

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Contents

Main Challenge in Computer Construction is the design of new memory chips with decreased size.

A conducting plastic

Invented by Researchers at Princeton University working with the Hewlett-Packard.

Cheaper and Faster than the existing silicon circuit.

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Introduction

What is Plastic Memory

This memory is contains a plastic film. It is a technique that store a megabit of data in a millisquare device. It is 10 times denser than current magnetic memories. Plastic Memory has the potential to become the next generation of storage media.In the new plastic device, each cell measures 17 square microns.

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Structure Of Plastic Memory

A two-terminal device in which an organic semiconducting polymer is sandwiched between two electrodes, indium doped tin oxide (ITO) and aluminum. The experimental devices contain two polymer layers. The first layer consist of PEDOT:PSS to which an inorganic salt (e.g. lithium triflate) and plasticizer (ethylene carbonate, EC) have been added. The second layer consists of poly(3-hexylthiophene) (P3HT) doped with the plasticizer. Motion of the ions present in the device under influence of an electric field is expected to induce switching between a high and a low conduction state, the so called ON and OFF state of a memory device.

5 Combines silicon technology - diodes - with the capability to

form a fuse

Spin Electronic Structure

It is a thin strip of dark blue organic-based magnet layered with a metallic ferromagnet and connected to two electrical leads. The data is recorded & retrived from it by controlling the spins of the electrons with a magnetic field.

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It Uses Electron Spin to Read/Write Data

• PEDOT is unusual plastic because it conducts electricity.• It is used as a anti-static coating in

photographic film.• In new memory card, data in the

form of ones and zeros would be represented by Polymer pixels.

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PEDOT

How

For reading

• The fuse would be read as a zero; while an unblown one that lets current passes through is read as a one.

For Writing• To store the

information, higher voltages at certain points in the circuit grid would “blow” PEDOT fuse at those points. As a result, data is permanently fetched in to the device.

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Read / Write Data

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Electronic Microscopic View

Plastic memory is fast.

Lab-built devices with a 1GB storage capacity have yielded read/write cycle times that are 10 times faster than CompactFlash, which are typically 2-10MB/s read, 1-4MB/s write.

It maintains memory even when the power is turned off.

It has very low power consumption.

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Facts About Plastic Memory

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Applications of Plastic Memory

It is 10 times denser than current magnetic memories.

Store mega-bit of data in millimeter-square device.

Data can’t be rewritten so suitable for permanent storage.

Retain data without power.

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Conclusion

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