Ann W Whitaker

Address:

770 Appleyard Dr APT 18B, Tallahassee, FL 32304

VIN:

JTNBE46K973034629

Make:

TOYOTA

Model:

CAMRY

Year:

2007

US Patent:

50442112, Sep 3, 1991

Filed:

Jul 28, 1989

Appl. No.:

7/386174

Inventors:

Ann F. Whitaker - Huntsville AL

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

G01N 3300
B05C 1100

US Classification:

73866

Abstract:

A method for determining the effects of exposure of oxygen plasma on a specimen such as a thin film polymer or thin metals. The method includes providing an apparatus with a chamber having a holder supporting the polymer specimen in a plasma environment provided in the chamber. The chamber is regulated to a predetermined pressure and set temperature prior to the introduction of oxygen plasma therein. The specimen is then subjected to the plasma environment for a predetermined time during which time the temperature of the specimen is sensed and regulated to be maintained at the set temperature. Temperature sensing is accomplished by a probe which senses any changes in bulk sample temperature. Temperature regulation is provided by a thermoelectric module and by a coolant flow tube.