Kemet Electronics Corporation

Motorola Corporation

Kennet Electronics Corporation

Kamet Electronics Corporation

Motorola Solutions, Inc.

Chris Stolarski

John D Prymak

John Tony Kinard

Gregory Joseph Dunn

Jeffrey Poltorak

Albert Kennedy Harrington

Philip Michael Lessner

Yuri Freeman

Christian L Guerrero

Chris Wayne

Alethia Melody

Brian John Melody

Antony P Chacko

Qingping Chen

David Alexander Wheeler

Daniel Francis Persico

Keith R Brenneman

David W Jacobs

Liancai Ning

Qun Ya

Steve C Hussey

Phillip Michael Lessner

Kim Pritchard

Randolph Stephen Hahn

Yongjian Qiu

Robert T Croswell

Brandon Summey

Erik Karlsen Reed

Remy J Chelini

Peter Par Blais

George Haddox

Jim Piller

Michael Prevallet

Xincheng Jin

Steven C Hussey

Javaid Qazi

Siva Jyoth Lingala

Alethla Melody

Jeffrey N Kelly

Phillip M Lessner

An improved capacitor is provided wherein the capacitor has an improved bond between the anode and anode wire. The anode comprises a pressed anode powder comprising a first density region and a second density region wherein the second density region has a higher density than the first density region. An anode wire extends into the second density region wherein the anode wire in the second density region is distorted by compression. This allows for better utilization of the metal powder surface area by allowing a lower bulk press density and lower sinter temperature while still achieving the necessary wire pull strength. In addition, this invention when utilized with deoxidation steps, results in sufficient wire pull strengths not possible otherwise.

Wire to anode connection

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

An improved capacitor and method of making an improved capacitor is set forth. The capacitor has planer anodes with each anode comprising a fusion end and a separated end and the anodes are in parallel arrangement with each anode in direct electrical contact with all adjacent anodes at the fusion end. A dielectric is on the said separated end of each anode wherein the dielectric covers at least an active area of the capacitor. Spacers separate adjacent dielectrics and the interstitial space between the adjacent dielectrics and spacers has a conductive material in therein.

Vertical stack approach in low profile aluminum solid electrolytic capacitors

Stack capacitor having high volumetric efficiency

An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.

Solid electrolytic capacitor and method of manufacture

A capacitor assembly with a substrate having a first face and a second face. A multiplicity of capacitors are mounted on the first face wherein each capacitor has a first lead and a second lead of opposite polarity to the first lead. A bridge is in electrical contact with multiple first leads. A tree is in electrical contact with the bridge wherein the tree passes through a via of the substrate and is in electrical contact with a first trace of the second face. A second trace is on the second face wherein the second lead is in electrical contact with the second trace.

Concentrated capacitor assembly

A process for forming a laminate with capacitance and the laminate formed thereby. The process includes the steps of providing a substrate and laminating a conductive foil on the substrate wherein the foil has a dielectric. A conductive layer is formed on the dielectric. The conductive foil is treated to electrically isolate a region of conductive foil containing the conductive layer from additional conductive foil. A cathodic conductive couple is made between the conductive layer and a cathode trace and an anodic conductive couple is made between the conductive foil and an anode trace.

Substrate with embedded patterned capacitance

An improved method for forming a capacitor. The method includes providing a carrier with a channel therein, providing a metal foil with a valve metal with a first dielectric on a first face of the metal foil, securing the metal foil into the channel with the first dielectric away from a channel floor, inserting an insulative material between the metal foil and each side wall of the channel, forming a cathode layer on the first dielectric between the insulative material, forming a conductive layer on the cathode layer and in electrical contact with the carrier, lap cutting the carrier parallel to the metal foil such that the valve metal is exposed, and dice cutting to form singulated capacitors.

Channel method for forming a capacitor

Growing community of inventors

Greenville, SC, United States of America

Chris Stolarski