Nano open house George Bourianoff

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I n t e l N a n ot e ch n ology V ir t u a l Ope n H ou se

New

nano

logic devices

for the 2020 time frame

George Bourianoff

Manager, Em erging Research Technologies

Ext ernal Program s, Technology & Manufact uring Group

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

A brief history of computing

Source

Drain

Gate

CMOS

Abbacus 1500 BC

Illiac IV 1954

Comm

on ele

ments

Beyond CMOS 2020

Moore

’s Law

Moore

’s Law

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Outline

A brief hist ory of com put ing

Underst anding t he basics of com put ing

Building on t he basics

Som e opt ions for

nano

com put ing and

ext ending Moore

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

What are the elements common

to all computers?

We need t o be able t o writ e a bit .

•

Ca n w e m a k e

r e d

pa r t icle s a n d

ye llow

pa r t icle s?

We need t o be able t o read a bit

•

.

I s it

r e d

or is it

ye llow ?

We need t o be able t o change bit s

•

Ca n w e ch a n ge

r e d

t o

Ye llow ?

BUT

All in for m a t ion is ph ysica l

–

I n for m a t ion m u st be r e pr e se n t e d by a

ph ysica l syst e m

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

The notion of

“

computational state

”

and material systems

Substrate

Gate

Source

Drain

Current

flow

The computational state is electron

current flow

The material system is a

semi-conductor MOSFET

•

The computational state is the

position of the beads

•

The material system is a set of

stings in a frame

NEW MATERIAL

SYSTEMS

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

For binary logic,

we need two

computational

states

Sufficient

energy

barrier is needed to

prevent spontaneous

transitions

states

w

a

E

_b

E

_b

BUT

a

E

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Building on the basics

Can we find ot her ways of st oring

“

com put at ional st at e

”

?

a

?

•Will it require less energy to switch?

•Do the material structures exist?

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

What are some of the logic

alternatives?

Spint ronics

Phase change logic devices

I nt erference devices

Opt ical swit ches

I nt el is sponsoring research

at leading inst it ut ions around

t he world

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I n te l N a n o te c h n o lo g y V ir tu a l O p e n H o u s e

Toy gyroscope

Charge

a

E

b

a

E

b

w

Spin

B

+

=

What about Spintronics?

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Magnetic devices>spin transistors

Magnetic memories

Magnetic

Read heads

GMR isolators

MOS SpinFET*

•Use spin to

Control current

•Intel funding

research at

UCSB

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Spin interactions enable coherent waves

B

Orbitron waves

-Electrical properties

related to

Magnetic properties

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Phase change logic devices

I ce t o wat er

Cryst alline t o

polym orphous

Met als t o insulat ors

Non

-

m agnet ic t o

m agnet ic

Correlat ed

m agnet ic and

elect rical st at es

Spontaneous ferromagnetic

Phase transition

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Spin gain transistor*

based on spontaneous ferromagnetic phase transition

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Ferroelectric transistor

Ferroelectric phase of gate material

controls threshold voltage

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Interference based devices

•Electrons have

wave properties

•Waves can

interfere

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Interference based switching

devices have been built*

GaAs/AlGaAs system

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Epitaxial

graphene

films for

interference devices

Graphene

is sam e

m at erial as

CNTs

Coherent t ransport has

been observer in film s

Film s m ay be pat t erned

t o m anufact ure

int erference based

devices

I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

What about optical switching?

Charge

a

E

_b

a

E

_b

w

Optical

cavity

Optical

mode

Radiation

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Optical modes in a cavity to store

computational state

The size of the pump beam

determines the spectrum of the laser

The photonic crystal laser

cavity can support two

perpendicular high-Q

dipole modes.

The lasing direction can be

modulated by changing the

relative Q of one of the

dipole modes with a

switching beam

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I n t e l N a n ot e ch nology Vir t u a l Ope n H ou se

Conclusion

New logic devices w ill be needed in

t he 2020 t im e fram e

Novel concept s relat ed t o exist ing

t echnologies exist but need t o be

invest igat ed

I nt el is engaged w it h key universit y

research program s t o m onit or and

guide t he research