METHOD FOR FORMING A PLATINUM RESISTANCE THERMOMETER

METHOD FOR FORMING A PLATINUM RESISTANCE THERMOMETER A platinum resistance thermometer is formed in a process which includes the defining of a path for the resistance thermometer in an inert material deposited in a layer on the substrate. The substrate surface is exposed in the path, and the inert m...

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Bibliographic Details
Main Authors RUF, JAMES A, BOHARA, ROBERT C
Format Patent
LanguageEnglish
French
Published 05.09.1989
Edition4
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
RESISTORS
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Summary:METHOD FOR FORMING A PLATINUM RESISTANCE THERMOMETER A platinum resistance thermometer is formed in a process which includes the defining of a path for the resistance thermometer in an inert material deposited in a layer on the substrate. The substrate surface is exposed in the path, and the inert material forms a negative pattern for the path. The resistive material for the thermometer is then deposited on both the substrate surface exposed in the path and on the surfaces of the inert material remaining on the substrate. After this, the inert material is etched away, and the resistive material deposited on top of the inert material is then loose and can be removed leaving a strip of resistive material in the desired path for forming the resistive thermometer. The strip has low contamination and impurities to more easily reach the desired temperature coefficent of resistance of the strip forming the thermometer.
Bibliography:Application Number: CA19850487788