Thermally switchable dielectrics

Dirk, Shawn M.; Johnson, Ross S.

Thermally switchable dielectrics

Patent · Tue Apr 30 00:00:00 EDT 2013

OSTI ID:1083586

Dirk, Shawn M.; Johnson, Ross S.

Precursor polymers to conjugated polymers, such as poly(phenylene vinylene), poly(poly(thiophene vinylene), poly(aniline vinylene), and poly(pyrrole vinylene), can be used as thermally switchable capacitor dielectrics that fail at a specific temperature due to the non-conjugated precursor polymer irreversibly switching from an insulator to the conjugated polymer, which serves as a bleed resistor. The precursor polymer is a good dielectric until it reaches a specific temperature determined by the stability of the leaving groups. Conjugation of the polymer backbone at high temperature effectively disables the capacitor, providing a `built-in` safety mechanism for electronic devices.

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Research Organization:: SNL-A (Sandia National Laboratories, Albuquerque, NM (United States))

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 8,427,809

Application Number:: 13/034,535

OSTI ID:: 1083586

Country of Publication:: United States

Language:: English

References (19)

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