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US 10,381,166 B2Granted
High performance and reliability solid electrolytic tantalum capacitors and screening method
AssigneeVishay Sprague, Inc.
InventorsAlex Eidelman, Yongjian Qiu, Pavel Vaisman, Yuri Stangrit, Rita Eisenberg, Natali Ostrovsky
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Abstract
Disclosed are tantalum capacitors having enhanced volumetric efficiency, effective series resistance, effective series inductance, and high frequency performance when compared to existing tantalum capacitors. Also disclosed is a screening process for tantalum capacitors to enhance reliability.
Claims10
A method for screening a capacitor having a multi-array package design, comprising the steps of:
- forming the capacitor by arranging a first capacitor element comprising a first anode and a second capacitor element comprising a second anode, the first capacitor element and the second capacitor element arranged in parallel in a multi-array package;
- applying a voltage exceeding a voltage rating of the capacitor;
- applying an elevated temperature to the capacitor;
- wherein the voltage and temperature are selected in such a manner that a breakdown voltage of the capacitor is improved;
- measuring a DC leakage current of the capacitor;
- and,
- comparing the DC leakage current to a predetermined maximum DC leakage current.
4 more elements
Dependencies are inferred from the claim text.