Methods for forming and using thin film ribbon microphone elements and the like
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United States of America Patent
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Jul 10, 2012
Grant Date -
Sep 27, 2007
app pub date -
Mar 16, 2007
filing date -
Oct 21, 2004
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Abstract
A geometrically shaped acoustic polymer ribbon with shape memory, high conductivity, high toughness. A method of manufacturing the ribbon comprises: forming a sized, elongated, coated or coatable polymeric substrate film between a pair of opposed, geometrically shaped dies, pinching the dies about the polymeric substrate film to form an assembly, heating the dies and the pinched die and polymeric film assembly to a temperature of at about 300 degrees F. for a period of about 15 minutes to set the elongated film into a predetermined geometric pattern, cooling the assembly, removing the film from the dies; and if not already coated, coating the geometrically formed, set, elongated film with a conductive coating.
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