The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 08, 2022

Filed:

Jul. 08, 2020
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Michael Engel, Rio de Janeiro, BR;

Filipe Viana Ferreira, Rio de Janeiro, BR;

Rodrigo Neumann Barros Ferreira, Rio de Janeiro, BR;

Ronaldo Giro, Rio de Janeiro, BR;

Mathias Steiner, Rio de Janeiro, BR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 13/02 (2006.01); G01Q 60/28 (2010.01);
U.S. Cl.
CPC ...
G01N 13/02 (2013.01); G01Q 60/28 (2013.01);
Abstract

Aspects of the invention include determining, by a first AFM tip, a first snap-off force of a solid surface immersed in a first fluid, determining, by a second AFM tip, a second snap-off force, determining, by a third AFM tip, a third snap-off force, determining, by the first AFM tip, a fourth snap-off force of a droplet of the first fluid immersed in the second fluid on the solid surface, determining, by the second AFM tip, a fifth snap-off force, determining, by the third AFM tip, a sixth snap-off force, determining a first capillary force for first AFM tip and first droplet based on first snap-off force and fourth snap-off force, determining a second capillary force for second AFM tip and first droplet and a third capillary force for third AFM tip and first droplet, and determining interfacial tension between first fluid and second fluid based on the capillary forces.


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