From: ekz@clockwise.mh.att.com
Newsgroups: sci.nanotech
Subject: index search for nanotech
Date: 28 Aug 92 01:35:56 GMT

Logon 26aug92 15:36:50
  
  File   4:INSPEC 2  83-92/9210W1 
  File 434:SCISEARCH  1974 - 9208W2 
  File   6:NTIS  64-92/9209B2 
 
      S1      77  NANOTECH? OR NANO()TECH?
      S2      71  RD (unique items) 
      S3      71  Sort 2/ALL/PY,D 

 3/7/1     (Item 1 from file: 6)
1611674  NTIS Accession Number: AD-A250 376/1/XAB
  Nanoscience and Nanotechnology
  Tolles, W. M.
  Naval Research Lab., Washington, DC.
  Corp. Source Codes: 000927000; 251950
  Report No.: NRL/MR/1003--92-6989
  5 May 92   87p
  Languages: English
  Journal Announcement: GRAI9217
  NTIS Prices: PC A05/MF A01
  Country of Publication: United States
  This  document  reviews  the research area of nanoscience/nanotechnology,
both  within and outside of NRL. Rapid developments in frontiers related to
miniaturization   have   taken   place   in  the  last  several  years,  in
microelectronics    and   microelectronic   devices,   optical   materials,
biotechnology,  structural  materials,  tunneling  tip  microscopy (and the
field  of  proximal  probes),  and  microelectromechanical  systems (MEMS).
Important developments are expected for electronics and computers, sensors,
materials,  biological  behavior,  and  a number of devices. An overview of
these  areas  is preliminary to examining priorities for investment in this
field.  This document is an attempt to provide an overview of these diverse
efforts,  particularly  where the Naval Research Laboratory has significant
interests.

 3/7/2     (Item 2 from file: 434)
11628835   Genuine Article#: HY363   Number of References: 7
Title: ON THE COBALT (11(2)BAR-0) SURFACE AS A TEMPLATE FOR HYDROCARBON
    CHAIN FORMATION IN FISCHER-TROPSCH SYNTHESIS
Author(s): JE YT; COMPANION AL
Corporate Source: UNIV KENTUCKY,DEPT CHEM/LEXINGTON//KY/40506; UNIV
    KENTUCKY,DEPT CHEM/LEXINGTON//KY/40506
Journal: SURFACE SCIENCE, 1992, V271, N1-2 (MAY 21), PL345-L349
Language: ENGLISH   Document Type: LETTER
Abstract: An explanation is proposed for the observations of Geerlings,
    Zonnevylle and de Groot [Surf. Sci. 241 (1991) 302, 315] that longer
    hydrocarbon chains grow on the zigzag, grooved cobalt (1120BAR) surface
    during Fischer-Tropsch reactions, while on stepped (1012BAR) and smooth
    (0001) surfaces mainly C1 fragments are observed. Molecular orbital
    calculations show that the zigzag troughs on this surface may act as
    templates favoring CO dissociation and skeletal carbon chain formation,
    and that such events do not occur on smooth surfaces.

        Some speculations are offered on the nanotechnological design of
    "custom" templates for hydrocarbon synthesis.

 3/7/3     (Item 3 from file: 434)
11579763   Genuine Article#: HU156   Number of References: 7
Title: FABRICATION OF MSM PHOTOCONDUCTOR ON POROUS SI USING MICROMACHINED
    SILICON MASK
Author(s): YU LZ; WIE CR
Corporate Source: SUNY BUFFALO,DEPT ELECT & COMP ENGN,CTR ELECTR &
    ELECTROOPT MAT,BONNER HALL/BUFFALO//NY/14260
Journal: ELECTRONICS LETTERS, 1992, V28, N10 (MAY 7), P911-913
Language: ENGLISH   Document Type: ARTICLE
Abstract: An MSM photoconductive detector has been fabricated from porous
    silicon using a micromachined silicon mask of photolithography. This
    approach allows damage to porous silicon that can be caused by chemical
    processing to be avoided. The interdigitated pattern of the silicon
    mask with a finger spacing of approximately 150-mu-m and finger width
    of 50-mu-m was made using silicon micromachining, The fabricated MSM
    porous silicon photoconductive detector, which exhibits responsivities
    of better than 0.5A/W at the wavelength of the He-Ne laser (6280
    angstrom) and a dark current of 950nA at 10V, is very promising as an
    optoelectronic device.

 3/7/4     (Item 4 from file: 434)
11433301   Genuine Article#: HH921   Number of References: 1
Title: NANOTECHNOLOGY RULES, OK
Author(s): CLERY D
Journal: NEW SCIENTIST, 1992, V133, N1811 (MAR 7), P42-46
Language: ENGLISH   Document Type: ARTICLE

 3/7/5     (Item 5 from file: 434)
11310307   Genuine Article#: GZ695   Number of References: 1
Title: NANOTECHNOLOGY - THE PAST AND THE FUTURE
Author(s): HADDEN SG; CHAPA J
Corporate Source: UNIV TEXAS,LYNDON B JOHNSON SCH PUBLIC
    AFFAIRS/AUSTIN//TX/78712
Journal: SCIENCE, 1992, V255, N5042 (JAN 17), P269
Language: ENGLISH   Document Type: LETTER

 3/7/6     (Item 6 from file: 434)
11310306   Genuine Article#: GZ695   Number of References: 1
Title: NANOTECHNOLOGY - THE PAST AND THE FUTURE
Author(s): DREXLER KE
Corporate Source: STANFORD UNIV,DEPT COMP SCI/STANFORD//CA/94305
Journal: SCIENCE, 1992, V255, N5042 (JAN 17), P268-269
Language: ENGLISH   Document Type: LETTER

 3/7/7     (Item 7 from file: 434)
11310305   Genuine Article#: GZ695   Number of References: 1
Title: NANOTECHNOLOGY - THE PAST AND THE FUTURE
Author(s): WERTHAMER NR
Corporate Source: AMER PHYS SOC,335 E 45TH ST/NEW YORK//NY/10017
Journal: SCIENCE, 1992, V255, N5042 (JAN 17), P268
Language: ENGLISH   Document Type: LETTER

 3/7/8     (Item 8 from file: 4)
04219934   INSPEC Abstract Number: C9210-3360L-003
 Title: Micro and nanotechnologies
  Author(s): Hanna, J.C.
  Journal: Unmanned Systems    vol.10, no.3    p.35-7
  Publication Date: Summer 1992    Country of Publication: USA
  CODEN: UNSYE3
  Language: English    Document Type: Journal Paper (JP)
  Treatment: Practical (P)
  Abstract: Possible applications of microrobots to assembly and inspection
in  Space  are  discussed, then the article considers the technology of the
underlying  micromotor.  Power sources discussed are static electricity and
the  oxidisation  of  glucose.  Nanotechnologies  are also discussed. Other
microrobot   applications   in  Space  include  maintenance  and  equipment
replacement,   and   widespread  planet  surface  exploration.  Microrobots
increase versatility and reduce weight.  (4 Refs)

 3/7/9     (Item 9 from file: 4)
04205347   INSPEC Abstract Number: B9209-2570-043
  Title:  Coupling  and  crosstalk  between  high  speed  interconnects  in
ultralarge scale integrated circuits
  Author(s): Bandyopadhyay, S.
  Author Affiliation: Dept. of Electr. Eng., Notre Dame Univ., IN, USA
  Journal: IEEE Journal of Quantum Electronics    vol.28, no.6    p.1554-61
  Publication Date: June 1992    Country of Publication: USA
  CODEN: IEJQA7    ISSN: 0018-9197
  U.S. Copyright Clearance Center Code: 0018-9197/92/$03.00
  Language: English    Document Type: Journal Paper (JP)
  Treatment: Theoretical (T)
  Abstract: The advent of sophisticated lithographic techniques has made it
possible  to  fabricate  densely packed ultra-large-scale-integrated (ULSI)
circuits.  In  these  chips, interconnect lines are so narrow and spaced in
such  close proximity that signal from one line could easily get coupled to
another,  causing  interference  and  crosstalk.  A general theory to model
coupling  between optical interconnects (waveguides) and quantum-mechanical
coupling  between  narrow  and  very  closely spaced silicide interconnects
embedded in dielectrics (SiO/sub 2/) is presented.  (18 Refs)

 3/7/10     (Item 10 from file: 4)
04184530   INSPEC   Abstract   Number:   A9216-4230-001,   B9208-6140C-215,
C9208-1250-218
  Title:  Bohr's  indeterminacy  principle  in quantum holography, adaptive
neural  networks, cortical self-organisation, molecular computers, magnetic
resonance imaging, and solitonic nanotechnology
  Author(s): Schempp, W.
  Author Affiliation: Lehrstuhl fur Math. I, Siegen Univ., Germany
  Journal:  Proceedings of the SPIE - The International Society for Optical
Engineering    vol.1658    p.297-343
  Publication Date: 1992    Country of Publication: USA
  CODEN: PSISDG    ISSN: 0277-786X
  U.S. Copyright Clearance Center Code: 0 8194 0812 3/92/$4.00
  Conference Title: Nonlinear Image Processing III
  Conference Sponsor: SPIE; Soc. Imaging Sci. Technol
  Conference  Date:  12-14  Feb. 1992    Conference Location: San Jose, CA,
USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: Bibliography (B); General, Review (G)
  Abstract: This paper establishes a mathematically rigorous approach using
quantum  holography to describe the flow and counterflow of optical photons
within  split  fan-in/fan-out  channels by means of a Liouville density. It
proves Bohr's fundamental indeterminacy principle and the nonexistence of a
position operator describing individual photon trajectories. Application of
the  linear Schrodinger and lattice representations and Bargmann-Fock-Segal
representation  of  the  Heisenberg  group  N  exhibiting hidden symmetries
inherent  in  quantum holography provides new insights into neural networks
implemented by photonic synapses.  (99 Refs)

 3/7/11     (Item 11 from file: 4)
04162509   INSPEC Abstract Number: A9213-3320E-023
 Title: Engineering calculations of IR spectra of complex molecules
  Author(s): Gribov, L.A.; Zinovyev, K.A.
  Author Affiliation: V.I. Vernadsky Inst. of Geochem. & Anal. Chem., Acad.
of Sci., Moscow, Russia
  Journal: Journal of Molecular Structure    vol.268, no.1-3    p.191-221
  Publication Date: 1 April 1992    Country of Publication: Netherlands
  CODEN: JMOSB4    ISSN: 0022-2860
  U.S. Copyright Clearance Center Code: 0022-2860/92/$05.00
  Language: English    Document Type: Journal Paper (JP)
  Treatment: Theoretical (T)
  Abstract: General principles for accumulating molecular parameters with a
view to performing bulk (engineering) calculations of IR spectra of complex
organic  and  hetero-organic compounds are presented and the search for the
parameters, by carrying out consistent quantum-chemical calculations and by
solving  inverse  spectral  problems,  is  described. The potentials of the
calculations of IR spectra using the available data banks are demonstrated.
(27 Refs)

 3/7/12     (Item 12 from file: 6)
1592653  NTIS Accession Number: PB92-150325/XAB
  Miniaturization Technologies
  Office of Technology Assessment, Washington, DC.
  Corp. Source Codes: 058574000
  Report No.: OTA-TCT-514; ISBN-0-16-035983-X
  Nov 91   55p
  Languages: English
  Journal Announcement: GRAI9210
  Also available from Supt. of Docs.
  NTIS Prices: PC A04/MF A01
  Country of Publication: United States
  The  report  assesses  U.S.  and  foreign  R  and  D  in  a wide range of
miniaturization    technologies    including   electronics,   sensors   and
micro-mechanical  devices. The primary driving force behind miniaturization
since  WW  II  has  been  electronics. Past electronics miniaturization has
resulted  in  massive  markets  and  market  advantage  in  areas  such  as
computers,  consumer  electronics,  defense,  aerospace,  and  automobiles.
Future  advances in miniaturization will surely be driven by electronics as
well, and advances in sensors will begin to have larger impacts than in the
past.

 3/7/13     (Item 13 from file: 6)
1591206  NTIS Accession Number: DE92004723/XAB
  Polymerization   of  immunoglobulin  domains:  A  model  system  for  the
development of facilitated macromolecular assembly
  Stevens, F. J. ; Myatt, E. A.
  Argonne National Lab., IL.
  Corp. Source Codes: 001960000; 0448000
  Sponsor: Department of Energy, Washington, DC.
  Report No.: ANL/CP-74444; CONF-9111148-1
  1991   27p
  Languages: English   Document Type: Conference proceeding
  Journal Announcement: GRAI9210; ERA9221
  Foresight  conference  on  molecular  nanotechnology (2nd), Palo Alto, CA
(United   States),  7-9  Nov  1991.  Sponsored  by  Department  of  Energy,
Washington, DC.
  NTIS Prices: PC A03/MF A01
  Country of Publication: United States
  Contract No.: W-31109-ENG-38
  We  have  recently determined that monoclonal immunoglobulin light chains
(Bence  Jones  proteins)  are  capable of reversible polymerization at room
temperature.  This  property,  as  exhibited by immunoglobulin light chains
(normally  a  component  of  an  intact  antibody molecule), may have novel
implications  for  the  development  of  ''molecular  nanotechnology.'' The
polymerization  capability  of the immunoglobulin light chain is associated
with the so-called variable domain of this molecule. The variable domain is
a  durable,  compact beta-sheet structure of molecular weight approximately
12,000. Most of the primary sequence variation is limited to one portion of
the   molecule,   that   portion   associated   with  the  contribution  of
immunoglobulin  light  chains to the recognition and binding of thousand of
different  antigens  by  antibodies.  As a consequence of these variations,
different  light  chains polymerize with different degrees of avidity, from
negligible  to  extensive.  The  polymerization process depends on solution
parameters  such as Ph. Thus, polymerization might be induced at one pH and
suppressed or reversed at another. Combinations of molecules of appropriate
specificities    could    assemble   into   structures   of   predetermined
three-dimensional  forms  and properties. These features suggest that Bence
Jones  proteins  represent  a powerful model system within which to develop
empirical rules relevant to a technology of protein-based ''construction''.
Development of these rules will require the combined efforts of biophysical
and  crystallographic studies, protein engineering, and molecular modeling.
53 refs., 5 figs.

 3/7/14     (Item 14 from file: 6)
1577189  NTIS Accession Number: PB92-123066/XAB
  Use of Solid Modeling in the Design of M3 Components
  Feeney, A. B. ; Brown, P. F.
  National  Inst.  of  Standards  and  Technology  (NEL), Gaithersburg, MD.
Factory Automation Systems Div.
  Corp. Source Codes: 092731002
  Report No.: NISTIR-4710
  Sep 91   35p
  Languages: English
  Journal Announcement: GRAI9205
  See also PB90-136938 and PB90-242207.
  NTIS Prices: PC A03/MF A01
  Country of Publication: United States
  The  paper  documents  the  work done for the Molecular Measuring Machine
(M3)  Project  by  the  Engineering Design Laboratory (EDL) at NIST. The M3
Project is developing and fabricating a device capable of making repeatable
measurements  of  atomic  scale  features  within  a  volume  of 50mm x 100
micrometers.  Extraordinary  measures are being taken to isolate the device
from  mechanical vibrations, thermal loading and acoustic noise. The finest
level  of  control over mechanical vibrations is achieved through an active
vibration  isolation system. The EDL created solid models of the components
and assemblies related to the active vibration isolation system in order to
obtain  the  mass  properties  calculations required by the dynamic control
system.  The  paper  provides  an overview of the M3 Project, describes the
modeling  work  that  was  done within the EDL, and gives the mass property
calculation  results  for  the  M3  parts and assemblies. Additionally, the
paper discusses the advantages of using solid models as an integrated shape
representation  and a number of ways solid models are being used in product
lifecycle applications.

 3/7/15     (Item 15 from file: 6)
1575690  NTIS Accession Number: DE91639549/XAB
  Prospects for relic neutrino detection
  Smith, P. F.
  Science  and  Engineering Research Council, Chilton (England). Rutherford
Appleton Lab.
  Corp. Source Codes: 074381002; 9050452
  Report No.: RAL-91-017; CONF-901141
  Mar 91   25p
  Languages: English   Document Type: Conference proceeding
  Journal Announcement: GRAI9205
  International  conference  on  trends  in  astroparticle  physics,  Santa
Monica, CA (United States), 26 Nov - 1 Dec 1990, Conference took also place
in Brighton (UK), 17-21 December 1990.
  U.S. Sales Only.
  NTIS Prices: PC A03/MF A01
  Country of Publication: United Kingdom
  The  standard  big  bang  model  predicts a universal background of relic
neutrinos,  comparable  in  number  density  to  the  background  microwave
photons.  This  neutrino  background  is  undetectable  at the present time
firstly  because  the neutrino energy is very low (10(sup -4)-10(sup -5)eV)
resulting  in  a  very low energy transfer to any conceivable detector, and
secondly the low energy gives a lower interaction cross section and hence a
very  low  event  rate per unit mass. These obstacles have so far precluded
any  realistic proposal for relic neutrino detection. The aim of this paper
is   to  illustrate  the  difficulties  in  detecting  these  neutrinos  by
summarizing  six  detection  ideas  which  have been previously considered,
indicating  in  each  case the problems which have prevented the idea being
developed  into  an experimental proposal. The most promising direction for
further  study would appear to be that of coherent interactions. So far, no
investigations  of this idea have resulted in a practical detection scheme,
but  in  this paper one new variation is suggested which could in principle
give   an  observable  effect,  if  the  necessary  stringent  experimental
conditions  could be created. It is suggested that this may become possible
with  the  aid  of foreseeable 21st century developments in nanotechnology.
(author). (Atomindex citation 22:061137)

 3/7/16     (Item 16 from file: 434)
11216032   Genuine Article#: GR777   Number of References: 4
Title: THE APOSTLE OF NANOTECHNOLOGY
Author(s): AMATO I
Journal: SCIENCE, 1991, V254, N5036, P1310-1311
Language: ENGLISH   Document Type: EDITORIAL

 3/7/17     (Item 17 from file: 434)
11216031   Genuine Article#: GR777   Number of References: 1
Title: EXPLOITING THE NANOTECHNOLOGY OF LIFE
Author(s): FREEDMAN DH
Journal: SCIENCE, 1991, V254, N5036, P1308-1310
Language: ENGLISH   Document Type: EDITORIAL

 3/7/26     (Item 26 from file: 434)
10683700   Genuine Article#: EZ110   Number of References: 10
Title: ELECTROLYTIC PROCESSES FOR ETCHING AND METAL-DEPOSITION TOWARDS
    NANOMETER QUANTUM STRUCTURES
Author(s): GRUB A; RICHTER R; HARTNAGEL HL
Corporate Source: TH DARMSTADT,INST HOCHFREQUENZTECH,MERCKSTR 25/D-6100
    DARMSTADT//FED REP GER/
Journal: ELECTRONICS LETTERS, 1991, V27, N4, P306-307
Language: ENGLISH   Document Type: ARTICLE
Abstract: New processes of etching and metal deposition in the submicron
    range have been developed by using electrolytic solutions.  Etching of
    towers and ridges with dimensions of less than 300 nm out of a GaAs
    substrate is achieved.  Similarly, submicron metallisation with dots
    and lines of less than 100 nm in size is demonstrated by direct
    electrolytical writing using an STM-type sharp needle point.  Both
    processes appear to be promising for the realisation and further
    development of mesoscopic devices.

 3/7/28     (Item 28 from file: 4)
04214768   INSPEC Abstract Number: A9218-8160B-054, B9209-0170G-008
 Title: Stable nanometer-scale patterns produced by high electric fields
  Author(s): Wetsel, G.C., Jr.; McBride, S.E.
  Author Affiliation: Erik Jonsson Sch. of Eng. & Comput. Sci, Texas Univ.,
Dallas, TX, USA
  Journal: AIP Conference Proceedings    no.241    p.467-79
  Publication Date: 1991    Country of Publication: USA
  CODEN: APCPCS    ISSN: 0094-243X
  U.S. Copyright Clearance Center Code: 0094-243X/91/$2.00
  Conference Title: Scanned Probe Microscopy - STM and Beyond Conference
  Conference  Date:  6-11  Jan. 1991    Conference Location: Santa Barbara,
CA, USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: Experimental (X)
  Abstract:  Nanometer-scale features are being produced in air on metallic
surfaces  using  a  scanning tunneling microscope developed for microscopy,
spectroscopy,  and  fabrication.  The  instrument has sufficient stability,
computer control, and in-process measurement capability to record important
processing  signals  while  creating nanoscale patterns. Nanoscale features
have  been  produced with various tip and sample material combinations. The
surface   can   be   quantitatively   characterized  using  both  tunneling
spectroscopy  and  imaging before and after pulsing the tip-sample voltage.
The  before-and-after  images  show  that  the form of the created features
ranges  from  craters to mounds when the voltage exceeds a threshold value.
The tip-sample current waveform recorded during a surface modification also
indicates  the nature of the created feature. Measurements of the variation
of  threshold  tip-sample  voltage  with  tip-sample  spacing  shows that a
threshold  electric  field  of  the  order  of V/A is characteristic of the
process.  Computations  of  the  electrostatic field between tip and sample
yield values sufficient to remove atoms by high-field processes.  (13 Refs)

 3/7/29     (Item 29 from file: 4)
04214765   INSPEC Abstract Number: B9209-7230-105
 Title: Possible applications of micromechanics to scanned nanoprobes
  Author(s): White, R.M.
  Author  Affiliation:  Dept.  of  Electr.  Eng. & Comput. Sci., California
Univ., Berkeley, CA, USA
  Journal: AIP Conference Proceedings    no.241    p.443-58
  Publication Date: 1991    Country of Publication: USA
  CODEN: APCPCS    ISSN: 0094-243X
  U.S. Copyright Clearance Center Code: 0094-243X/91/$2.00
  Conference Title: Scanned Probe Microscopy - STM and Beyond Conference
  Conference  Date:  6-11  Jan. 1991    Conference Location: Santa Barbara,
CA, USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: Applications (A); Practical (P)
  Abstract: The authors suggest many possible applications of microchemical
sensor  and  actuator principles or structures to scanned probe microscopy.
The    micromechanical    structures    are    fabricated    by   augmented
integrated-circuit  planar fabrication techniques. These microscale devices
can provide electrically controlled steady or time-varying linear or rotary
motion.  They  can  also  transport  granular  solids as well as fluids and
biological  substances,  and  can  sense  measureands such as displacement,
velocity,  acceleration,  vapor concentration, fluid density and viscosity,
and  mass  accumulations  produced  by  condensation  from  solution  or by
electroplating.  (24 Refs)

 3/7/30     (Item 30 from file: 4)
04214760   INSPEC Abstract Number: A9218-6116P-015
 Title: Nanomechanism
  Author(s): Nakagiri, N.
  Author  Affiliation:  Res.  Dev. Corp. of Japan, Tsukuba Res. Consortium,
Ibaraki, Japan
  Journal: AIP Conference Proceedings    no.241    p.357-70
  Publication Date: 1991    Country of Publication: USA
  CODEN: APCPCS    ISSN: 0094-243X
  U.S. Copyright Clearance Center Code: 0094-243X/91/$2.00
  Conference Title: Scanned Probe Microscopy - STM and Beyond Conference
  Conference  Date:  6-11  Jan. 1991    Conference Location: Santa Barbara,
CA, USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: General, Review (G)
  Abstract:   The   author   reviews  the  research  work  of  the  Yoshida
Nanomechanism  Project  which concluded its five year activity. The project
was  organized  into  three  different  research groups. The basic analysis
group  worked  on  development  of scanning tunneling microscopes and their
applications  to processed surfaces and biological materials, and on making
zone  plates  more  efficient  for  X-ray  microscopy.  The measurement and
control  group  concentrated  its research on displacement measurements and
positioning  devices.  The  processing  group studied multilayers for X-ray
mirrors  and  ion  beam  processing  for  the  production  of  super smooth
surfaces.  (25 Refs)

 3/7/31     (Item 31 from file: 4)
04214759   INSPEC Abstract Number: B9209-2560-005
 Title: The operating principles of the smallest electronic devices
  Author(s): Timp, G.
  Author Affiliation: AT&T Bell Labs., Holmdel, NJ, USA
  Journal: AIP Conference Proceedings    no.241    p.346-56
  Publication Date: 1991    Country of Publication: USA
  CODEN: APCPCS    ISSN: 0094-243X
  U.S. Copyright Clearance Center Code: 0094-243X/91/$2.00
  Conference Title: Scanned Probe Microscopy - STM and Beyond Conference
  Conference  Date:  6-11  Jan. 1991    Conference Location: Santa Barbara,
CA, USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: Experimental (X)
  Abstract:  Innovations in semiconductor technology provide an opportunity
to  examine  devices  with  vertical  and  lateral dimensions less than 100
nanometers-comparable  to  the  wavelength  of  the  electron  at the Fermi
energy.  The  author reviews the relationship of energy quantization, phase
coherence  and  impurity  scattering  to  the low temperature resistance of
discrete devices comparable in size to the electron wavelength, and discuss
implications for electrical isolation between such devices.  (27 Refs)

 3/7/32     (Item 32 from file: 4)
04214737   INSPEC Abstract Number: A9218-0130C-045
 Title: Scanned Probe Microscopy - STM and Beyond Conference
  Journal: AIP Conference Proceedings    no.241
  Publication Date: 1991    Country of Publication: USA
  CODEN: APCPCS    ISSN: 0094-243X
  U.S. Copyright Clearance Center Code: 91/$2.00
  Conference Title: Scanned Probe Microscopy - STM and Beyond Conference
  Conference  Date:  6-11  Jan. 1991    Conference Location: Santa Barbara,
CA, USA
  Language:  English    Document Type: Conference Proceedings (CP); Journal
Paper (JP)
  Abstract:   The   following   topics   were  dealt  with:  scanned  probe
microscopies;  localised  electronic  effects;  applications in biology and
chemistry;    spectroscopy;    applications    in    nanotechnology;    and
high-resolution magnetic imaging.

 3/7/33     (Item 33 from file: 4)
04090805   INSPEC Abstract Number: A9206-7335-006
  Title:  Potential  relief  induced  by  metallic  nanoelements  in a thin
semiconductor film
  Author(s): Levshin, A.M.; Sumetskii, M.Yu.
  Author  Affiliation:  M.  A.  Bonch-Bruevich  Electr. Eng. Commun. Inst.,
Leningrad, USSR
  Journal:  Pis'ma  v Zhurnal Tekhnicheskoi Fizika    vol.17, no.9-10    p.
54-7
  Publication Date: May 1991    Country of Publication: USSR
  CODEN: PZTFDD    ISSN: 0320-0108
  Translated in: Soviet Technical Physics Letters   vol.17, no.5   p.335-6
  Publication Date: May 1991    Country of Publication: USA
  CODEN: STPLD2    ISSN: 0360-120X
  U.S. Copyright Clearance Center Code: 0360-120X/91/050335-02$02.00
  Language: English    Document Type: Journal Paper (JP)
  Treatment: Experimental (X)
  Abstract:  The  advances of nanotechnology now make it possible with good
accuracy  to  fabricate  non-one-dimensional  structures  with sizes of the
order  of  hundreds  of angstroms, i.e., of the order of the characteristic
wavelength  of  electrons  in semiconductors. Metallic materials, which are
technologically  more convenient, cannot at present be used for fabrication
of  quantum  elements  of  the  type  indicated  above because the electron
wavelength  is  so  small (of the order of a few angstroms), thus making it
necessary  to  produce equally small potential walls. However, if nanometer
metal  elements  are  deposited  on  a  substrate with a surface previously
coated  with a semiconductor film, these elements can induce an appropriate
potential  relief  in the energy diagram of the film. The authors point out
the  following.  Even  if the metallic elements are isolated (no voltage is
applied to them) and neutral, the appropriate potential relief nevertheless
arises  by  self-induction,  i.e.,  because  of  the image force between an
electron  passing  along  the  film  and the free electrons of the metallic
nanoelement.  (9 Refs)

 3/7/36     (Item 36 from file: 4)
03947344   INSPEC Abstract Number: B91056002
  Title:  Pattern  generation  on  semiconductor  surfaces  by  a  scanning
tunneling microscope operating in air
  Author(s):  Dagata,  J.A.; Schneir, J.; Harary, H.H.; Bennett, J.; Tseng,
W.
  Author  Affiliation:  Nat.  Inst. of Stand. & Technol., Gaithersburg, MD,
USA
  Journal:  Journal  of  Vacuum  Science  &  Technology B (Microelectronics
Processing and Phenomena)    vol.9, no.2, pt.2    p.1384-8
  Publication Date: March-April 1991    Country of Publication: USA
  CODEN: JVTBD9    ISSN: 0734-211X
  Conference  Title:  Fifth  International Conference on Scanning Tunneling
Microscopy/Spectroscopy  and  First  International  Conference on Nanometer
Scale Science and Technology
  Conference Sponsor: American Vacuum Soc.; NSF; et al
  Conference  Date:  23-27 July 1990    Conference Location: Maltimore, MD,
USA
  Language:  English    Document Type: Conference Paper (PA); Journal Paper
(JP)
  Treatment: Experimental (X)
  Abstract:  Recent  results  employing scanning tunneling microscope-based
techniques  for  the  generation  of nanometer-scale patterns on passivated
semiconductor  surfaces  are presented. Preparation and characterization of
hydrogen-passivated silicon and sulfur-passivated gallium arsenide surfaces
are  described  and  the  determination  of  the chemical and morphological
properties  of  the  patterned  regions by scanning electron microscopy and
time-of-flight  secondary  ion  mass spectrometry are discussed. The recent
demonstration   that   ultrashallow  oxide  features  written  by  scanning
tunneling   microscope   (STM)   can   serve   as  an  effective  mask  for
selective-area  GaAs  heteroepitaxy  on  silicon  is used to illustrate key
requirements   necessary   for  the  realization  of  a  unique,  STM-based
nanotechnology.  (24 Refs)

 


File  35:DISSERTATION ABSTRACTS ONLINE  1861-AUG 92 
 

 1/9/1
01225263  ORDER NO: NOT AVAILABLE FROM UNIVERSITY MICROFILMS INT'L.
MOLECULAR MACHINERY AND MANUFACTURING WITH APPLICATIONS TO COMPUTATION
(NANOTECHNOLOGY)
  Author:  DREXLER, K. ERIC
  Degree:  PH.D.
  Year:    1991
  Corporate Source/Institution:  MASSACHUSETTS INSTITUTE OF TECHNOLOGY (
           0753)
  Supervisor: MARVIN L. MINSKY
  Source:  VOLUME 53/02-B OF DISSERTATION ABSTRACTS INTERNATIONAL.
           PAGE 1024.
  Descriptors:  ENGINEERING, MECHANICAL; COMPUTER SCIENCE; CHEMISTRY,
                GENERAL
  Descriptor Codes:  0548; 0984; 0485

     Studies were conducted to assemble the analytical tools necessary for
the design and modeling of mechanical systems with molecular-precision
moving parts of nanometer scale. These analytical tools were then applied
to the design of systems capable of computation and of molecular-precision
manufacturing.
     Part I draws on classical, statistical, and quantum mechanics,
together with empirical force-field models developed in chemistry, to
select and develop a set of practical models describing the key engineering
properties of nanometer-scale mechanical systems. These properties include
potential energy functions; positional uncertainties resulting from the
combined effects of quantum mechanics and thermal excitation; transition
rates and damage rates resulting from these same combined effects and from
ultraviolet and ionizing radiation; and energy dissipation resulting from
acoustic radiation, phonon scattering, thermoelastic effects, phonon
viscosity, and transitions occurring between potential wells in
disequilibrium states. Part I concludes with an analysis of the
capabilities of mechanosynthesis, that is, chemical synthesis directed by
devices capable of moving and positioning reactive moieties with
atomic-scale precision.
     Part II draws on the tools developed in Part I, analyzing the
mechanical properties of representative structural components and of mobile
nanomechanical components such as gears and bearings. Using components and
devices with these properties, nanomechanical computational systems
(comprising logic gates, signal transmission elements, registers, I/O
mechanisms, power supply, power distribution, and clocking) are described
and analyzed, yielding estimated component densities
$>$10$\sp{19}$/cm$\sp3$ and power dissipation levels $<$10$\sp{-9}$ those
of current transistor-logic devices. Part II concludes with an analysis of
the capabilities of molecular manufacturing systems based on
mechanosynthesis performed by nanomechanical systems, concluding that
assembly cycle times $\sim$10$\sp{-6}$ s will commonly be compatible with
error rates of $<$10$\sp{-12}$.
     Part III summarizes a study of the feasibility of performing
positionally-controlled chemical synthesis using a modified atomic force
microscope, concluding that assembly cycle times of $\sim$1 s and error
rates of $\sim$10$\sp{-5}$ can be anticipated from devices based on
combinations of existing molecules and mechanisms. Molecular assembly
mechanisms in this class can provide one of several paths forward from our
present capabilities toward more advanced molecular technologies of the
sort assumed in the body of the present work. (Copies available exclusively
from MIT Libraries, Rm. 14-0551, Cambridge, MA 02139-4307. Ph.
617-253-5668; Fax 617-253-1690.)