Solid electrolytic capacitor and method for making the same

Details Solid electrolytic capacitor and method for making the same Solid electrolytic capacitor and method for making the same

1998-09-09

2000-11-21

Reichard, Dean A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

361525, 29 2503, H01G 900, H01G 902

Patent

active

061512052

ABSTRACT:
A solid electrolytic capacitor using a conducting polymer to be formed by chemical oxidative polymerization as a solid electrolyte, the capacitor having: a capacitor element which includes a conducting polymer layer with a thickness of 0.02 .mu.m or greater at its central part. A method for making the solid electrolytic capacitor, having the steps of: providing at least two kinds of solutions with different oxidizing-agent concentrations; and adjusting the thickness of a conducting polymer layer at central part of a capacitor element to be 0.02 .mu.m or greater by using first a solution with a lowest oxidizing-agent concentration of the solutions and subsequently a solution with a next lowest oxidizing-agent concentration of the solutions.

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patent: 5754394 (1998-05-01), Evans
patent: 5812367 (1998-09-01), Kudoh

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