Tantalum capacitor

About: Tantalum capacitor is a research topic. Over the lifetime, 2432 publications have been published within this topic receiving 26709 citations.

Capacitor having a plurality of anode risers for low impedance at high frequency

Abstract: The disclosure relates to an electrical component with low impedance over a range of high frequency input signals. The electrical component comprises a body including a metal anode with a plurality of anode risers contacting the anode, each of the anode risers extend from the anode a relatively short distance with a minimum of spacing therebetween. Anode and cathode levels extend from the body a relatively short distance in spaced substantially parallel relationship with each other. Preferably, the lengths of the anode and the cathode leads are a minimum as well as is the distance between each of the leads in order to further help reduce the impedance of the electrical component over a range of high frequency input signals. An example of an electrical component body is a solid tantalum capacitor comprising an anode of a dielectric oxide film-forming metal with a myriad of intercommunication voids, a dielectric oxide film of the metal contacting surfaces of the anode, and an electrolyte material contacting the dielectric oxide film.

Methods for forming a capacitor on an integrated circuit device at reduced temperatures

Abstract: Methods of forming a capacitor on an integrated circuit include forming a lower electrode of the capacitor on an integrated circuit substrate. A protection layer is formed on the lower electrode at a temperature below a minimum temperature associated with a phase change of the lower electrode. A dielectric layer is formed on the protection layer. The protection layer is configured to limit oxidation of the lower electrode during forming of the dielectric layer. An upper electrode of the capacitor is formed on the dielectric layer.

Capacitor, method of manufacturing the same and memory device including the same

Abstract: In a capacitor of a semiconductor device, a method of manufacturing the same and a memory device including the capacitor, the capacitor includes a lower electrode, a dielectric film on the lower electrode, an upper electrode on the dielectric film, and a first reaction barrier film for preventing a reaction between the lower electrode and the dielectric film, the first reaction barrier film being interposed between the lower electrode and the dielectric film.

Design and Analysis of Electrical Properties of a Multilayer Ceramic Capacitor Module for DC-Link of Hybrid Electric Vehicles

Abstract: Multilayer capacitors with high ripple current and high capacitance were manufactured. The electrical properties of these capacitors were characterized for potential application for DC-link capacitors in hybrid electric vehicle inverters. Internal electrode structures were designed to achieve high capacitance and reliability. A single multilayer capacitor showed 0.46 3F/cm₃ of capacitance, 0.65% of dielectric loss, and 1450 V to 1650 V of dielectric breakdown voltage depending on the design of the internal electrode. The capacitor module designed with several multilayer capacitors gave a total capacitance of 450 3F, which is enough for hybrid electric vehicles. In particular, an equivalent series resistance of 4.5 m7 or less will result in 60 A rms , thereby reaching the allowed ripple current for hybrid electric vehicles.