1. Avogadro Scale Engineering Molecular Machine (Jacobson) Group
MIT – June 2004

2. Molecular Machines (Jacobson) Group
red blood cell
~5 m (SEM)
diatom
30 m
Simple molecules
<1nm
DNA
proteins nm
bacteria
1 m m
10-10
10-5
10-9
10-7
10-6
10-8
10-4
10-3
10-2
SOI transistor
width 0.12m
Semiconductor
Nanocrystal
~1 nm
Circuit design
Copper wiring
width 0.1m
Nanotube Transistor
(Dekker)
1012 bits/cm2 (1Tbit/cm2)
IBM PowerPC 750TM Microprocessor
7.56mm×8.799mm
6.35×106 transistors

3. Fabricational Complexity
Total Complexity
Complexity Per Unit Volume
Complexity Per Unit Time*Energy
Complexity Per unit Cost
Ffab = ln (W) / [ a3 tfab Efab ]
Ffab = ln (M)e-1 / [ a3 tfab Efab ]

4. Fabricational Complexity
…Can we use this map as a guide towards future directions in fabrication?

5. Direct Beam Fabricated Structures
Moleography – MIT
15 nm
Direct Beam Fabricated Structures
Ridley, B.A., B. Nivi, and J.M. Jacobson,. Science, (5440): p
(First Demonstration of All Inorganic Active Devices (Transistors) Solely from Nanoparticle Building Blocks).
Bulthaup, C.A.,Jacobson et al.. Applied Physics Letters, (10): p
Ridley, B.A., et al.,. Materials Research Society Symposium Proceedings, \
Griffith, S., et al.. Journal of Vacuum Science & Technology B, (6): p
Jacobson Group –2004