Apparatus for imaging liquid and dielectric materials with scann

Details Apparatus for imaging liquid and dielectric materials with scann Apparatus for imaging liquid and dielectric materials with scann

1995-06-07

1998-04-28

Noland, Thomas P.

Measuring and testing

Surface and cutting edge testing

Roughness

250306, G01B 734

Patent

active

057447047

ABSTRACT:
The invention images dielectric polarization forces on surfaces induced by a charged scanning force microscope (SFM) probe tip. On insulators, the major contribution to the surface polarizability at low frequencies is from surface ions. The mobility of these ions depends strongly on the humidity. Using the inventive SFM, liquid films, droplets, and other weakly adsorbed materials have been imaged.

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patent: 5400647 (1995-03-01), Elings
patent: 5468959 (1995-11-01), Tohda et al.
patent: 5495109 (1996-02-01), Lindsay et al.

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