Kemet Electronics Corporation

Steven C Hussey

Yuri Freeman

Philip Michael Lessner

Qingping Chen

Yongjian Qiu

Javaid Qazi

Jeffrey Poltorak

Chris Stolarski

Christian L Guerrero

Siva Jyoth Lingala

Jeffrey N Kelly

Jimmy Dale Cisson

Jake Yongjian Qiu

An improved capacitor, and method of manufacturing the improved capacitor, is provided. The method includes deoxygenating and leaching the anode wire to produce a capacitor comprising an anode having a surface area of at least 4.0 m/g or a charge density of at least 200,000 CV/g with the anode wire having an equivalent diameter of less than 0.30 mm extending from said anode. A dielectric is on the anode and a cathode is on the dielectric.

Method to reduce anode lead wire embrittlement in capacitors

A method for forming a hermetically sealed capacitor including: forming an anode; forming a dielectric on the anode; forming a conductive layer on the dielectric thereby forming a capacitive element; inserting the capacitive element into a casing; electrically connecting the anode to an exterior anode connection; electrically connecting the cathode to an exterior cathode connection; filling the casing with an atmosphere comprising a composition, based on 1 kg of atmosphere, of at least 175 g to no more than 245 g of oxygen, at least 7 g to no more than 11 g of water, at least 734 grams to no more than 818 grams of nitrogen and no more than 10 grams of a minor component; and hermetically sealing the casing with the atmosphere with the capacitive element contained in the casing.

Utilization of moisture in hermetically sealed solid electrolytic capacitors and capacitors made thereof

An improved capacitor and a method for forming an improved capacitor is detailed. The method comprises forming a tantalum anode from a tantalum powder with a powder charge of no more than 40,000 &#x3bc;C/g; forming a dielectric on the anode by anodization at a formation voltage of no more than 100 V; and forming a conductive polymeric cathode on the dielectric wherein the capacitor has a breakdown voltage higher than the formation voltage.

Tantalum capacitor with polymer cathode

A process for providing an improved hermetically sealed capacitor which includes the steps of applying a solder and a flux to an interior surface of a case; flowing the solder onto the interior surface; remove flux thereby forming a flux depleted solder; inserting the capacitive element into the casing; reflowing the flux depleted solder thereby forming a solder joint between the case and the solderable layer; and sealing the case.

Hermetically sealed polymer capacitors with high stability at elevated temperatures

Utilization of moisture in hermetically sealed solid electrolytic capacitor and capacitors made thereof

A process for the manufacturing valve metal anodes is provided. The process includes:

Method for making anodes for high voltage electrolytic capacitors with high volumetric efficiency and stable D.C. leakage

A capacitor, and method of making a capacitor, is provided wherein the capacitor has exceptionally high break down voltage. The capacitor has a tantalum anode with an anode wire attached there to. A dielectric film is on the tantalum anode. A conductive polymer is on the dielectric film. An anode lead is in electrical contact with the anode wire. A cathode lead is in electrical contact with the conductive polymer and the capacitor has a break down voltage of at least 60 V.

High voltage and high efficiency polymer electrolytic capacitors

A method for treating anodes of refractory valve metals by deoxidizing the anodes using Mg in an oven, prior to sintering. The process limits free oxygen in the metal compact and improves performance of a capacitor, especially with regards to rated voltage.

Growing community of inventors

Simpsonville, SC, United States of America

Steven C Hussey