Conductive Polymer Composition with a Dual Crosslinker System for Capacitors
AssigneeKemet Electronics Corporation
InventorsYaru Shi, Antony P. Chacko, Edgar White
Life of this patent
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Abstract
A capacitor with improved electronic properties is described. The capacitor has an anode, a dielectric on said anode and a cathode on the dielectric. The cathode has a conductive polymer defined as —(CR1R2CR3R4—)x— wherein at least one of R1, R2, R3 or R4 comprises a group selected from thiophene, pyrrole or aniline with the proviso that none of R1, R2, R3 or R4 contain —SOOH or COOH; a organofunctional silane; and an organic compound with at least two functional groups selected from the group consisting of carboxylic acid and epoxy.
Claims104
A capacitor comprising:
- an anode;
- a dielectric on said anode;
- a cathode on said dielectric wherein said cathode comprises:
- a conductive polymer defined as —(CR1R2CR3R4—)x— wherein at least one of R1, R2, R3 or R4 comprises a group selected from thiophene, pyrrole or aniline with the proviso that none of R1, R2, R3 or R4 contain —SOOH or COOH;
- a organofunctional silane;
- and
- an organic compound with at least two functional groups selected from the group consisting of carboxylic acid and epoxy.
A conductive polymer dispersion comprising a solvent, a conductive polymer, an organic silane and an organic compound with two or more functional groups selected from the group consisting of epoxy and carboxylic acid.
A method for forming a capacitor comprising:
- forming an anode;
- forming a dielectric on said anode;
- and
- forming a cathode on said dielectric comprising:
- forming a conductive layer comprising:
- a conductive polymer defined as —(CR1R2CR3R4—)x— wherein at least one of R1, R2, R3 or R4 comprises a group selected from thiophene, pyrrole or aniline with the proviso that none of R1, R2, R3 or R4 contain —SOOH or COOH;
- a organofunctional silane;
- and
- an organic compound with two or more functional groups selected from the group consisting of epoxy and carboxylic acid.
Dependencies are inferred from the claim text.