Measuring and testing – Surface and cutting edge testing – Roughness
Reexamination Certificate
2005-03-29
2005-03-29
Larkin, Daniel S. (Department: 2856)
Measuring and testing
Surface and cutting edge testing
Roughness
Reexamination Certificate
active
06871528
ABSTRACT:
A method of producing a branched carbon nanotube (CNT) is disclosed. The branched CNT is used with an atomic force microscope having a cantilever and a tip and that is able to measure a surface of a substrate as well as an undercut feature of the substrate that protrudes from the surface. A catalytic material is deposited onto the tip of the microscope, and the catalytic material is subjected to chemical vapor deposition. This initiates growth of a primary branch of the branched carbon nanotube such that the primary branch extends from the tip. A secondary branch is then introduced to extend from the primary branch and produce the branched carbon nanotube. The primary branch interacts with the surface of the substrate and the secondary branch interacts with the undercut feature.
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Carnahan David L.
Ren Zhifeng F.
Schlaf Rudiger
Wen Jianguo
Boston College
Howard & Howard
Larkin Daniel S.
Nanolab, Inc.
University of South Florida
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