Electrolytic capacitor for a semiconductor device having improved conductive polymer layer
AssigneeSaras Micro Devices, Inc.
InventorsMichael Randall, Richard Sheridan
Life of this patent
Estimating the term…
Abstract
An electrolytic capacitor for a semiconductor device includes a conductive substrate, a dielectric layer on the conductive substrate, and a conductive polymer layer on the dielectric layer. The conductive polymer layer may include at least one additive. The at least one additive may include an anodizing agent to promote oxide growth of the dielectric layer. The at least one additive may instead or additionally include an organic solvent, an additive to promote hydration resistance of the dielectric layer, and/or an additive to increase conductivity of the conductive polymer layer.
Claims20
An electrolytic capacitor for a semiconductor device, the electrolytic capacitor comprising:
- a conductive substrate;
- a dielectric layer on the conductive substrate;
- and
- a first conductive polymer layer on the dielectric layer, the first conductive polymer layer including at least one additive, the at least one additive including an anodizing agent to promote oxide growth of the dielectric layer;
- wherein the electrolytic capacitor further comprises a layer of the at least one additive on the first conductive polymer layer.
An electrolytic capacitor for a semiconductor device, the electrolytic capacitor comprising:
- a conductive substrate;
- a dielectric layer on the conductive substrate;
- a first conductive polymer layer on the dielectric layer;
- and
- a second conductive polymer layer on the first conductive polymer layer, the second conductive polymer layer including at least one additive, the at least one additive including an anodizing agent to promote oxide growth of the dielectric layer;
- wherein the electrolytic capacitor further comprises a layer of the at least one additive on the second conductive polymer layer.
An electrolytic capacitor for a semiconductor device, the electrolytic capacitor comprising:
- a conductive substrate;
- a dielectric layer on the conductive substrate;
- an additive layer on the dielectric layer, the additive layer including at least one additive, the at least one additive including an anodizing agent to promote oxide growth of the dielectric layer when the electrolytic capacitor is forward biased;
- and
- a conductive polymer layer on the additive layer.
Dependencies are inferred from the claim text.