H01G13/003

Tantalum capacitor with polymer cathode

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 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.

Manganese oxide capacitor for use in extreme environments

A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175? C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of moisture supplied to the manganese dioxide. In this manner, the solid electrolyte is less likely to undergo an adverse reaction under extreme conditions, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.

Systems and methods for patterning valve metals

Cold-sprayed aluminum capacitors on lead frame metal foils are provided for applications in 3D power package integration. This additive manufacturing process allows pre-patterned low-temperature processing of aluminum electrodes on metal lead frames, insulated metal substrates or even heat-spreaders and cold-plates. Cold-sprayed capacitors can eliminate several process integration and reliability issues that are associated with traditional discrete surface-assembled capacitors.

Resin-metal composite seal container and method for producing same

A resin-metal composite sealed container having a heat seal part using a heat-sealing resin, between an end part of a first metal foil and an end part of a second metal foil, and a metallically sealed part with a weld bead, on the end face outside the heat sealed part of the first metal foil and the second metal foil. The resin-metal composite sealed container, wherein the melting point of the metal constituting the metal foil is higher by 300 C. or more than the thermal decomposition temperature of the heat-sealing resin, the specific gravity of the metal constituting the metal foil is 5 or more, and the weld bead is formed by a laser welding. A method for producing a metal-resin composite sealed container, comprising forming a container by heat sealing end parts of metal foils having laminated on at least one surface thereof a heat-sealing resin, and forming a metallically sealed part with a weld bead on the end faces of the metal foils by heating/welding an outer side of the heat sealed part of the container from a side of the end faces of the metal foils.

THIN FILM CAPACITOR AND METHOD OF MANUFACTURING THE SAME
20180047510 · 2018-02-15 ·

The instant disclosure provides a thin film capacitor and a method of manufacturing the same. The method includes the following steps: placing a carrier substrate on a processing machine including at least one processing unit, and the at least one processing unit having a metal-layer forming module and an insulation-layer forming module that are arranged along a planar production line; forming a plurality of metal layers by the metal-layer forming module of the at least one processing unit, forming a plurality of insulation layers by the insulation-layer forming module of the at least one processing unit, and the metal layers and the insulation layers being alternately stacked on the carrier substrate to form a multilayer stacked structure; and then forming two terminal electrode structures to respectively enclose two opposite side end portions of the multilayer stacked structure.

Electrode leading-out method and packaging method for tantalum electrolytic capacitor

Disclosed is an electrode leading-out method and packaging method for a tantalum electrolytic capacitor. The electrode leading-out method includes the following steps: S1, fabricating an insulating protective layer outside an electrode body of the tantalum electrolytic capacitor; S2, exposing a cathode leading-out part on a cathode pre-leading-out part, and exposing a tantalum core leading-out end in an area where a terminal of a tantalum core is located; S3, depositing a metal layer on each of the cathode leading-out part and the tantalum core leading-out end which are exposed; and S4, fabricating an outer electrode for mounting on each of the metal layer of the cathode leading-out part and the metal layer of the tantalum core leading-out end so as to respectively lead out a cathode and an anode.

CASE-MOLD-TYPE CAPACITOR AND METHOD FOR PRODUCING SAME
20180040425 · 2018-02-08 ·

A case-mold-type capacitor includes a capacitor element, first and second bus bars connected to the first and second electrodes of the capacitor element, a case accommodating the capacitor element and the first and second bus bars, and a mold resin filling the case therein. The case has a cutaway portion provided therein. A sealing plate joined to the case so as to seal the cutaway portion. The first and second bus bars pass through the sealing plate and are fixed to the sealing plate. The case-mold-type capacitor improves dimensional accuracy between terminal portions of the first and second bus bars without increasing material cost, and has high reliability.

Systems and methods for patterning valve metals

Cold-sprayed aluminum capacitors on lead frame metal foils are provided for applications in 3D power package integration. This additive manufacturing process allows pre-patterned low-temperature processing of aluminum electrodes on metal lead frames, insulated metal substrates or even heat-spreaders and cold-plates. Cold-sprayed capacitors can eliminate several process integration and reliability issues that are associated with traditional discrete surface-assembled capacitors.

Vanadium-containing film forming compositions and vapor deposition of vanadium-containing films

Vanadium-containing film forming compositions are disclosed, along with methods of synthesizing the same, and methods of forming Vanadium-containing films on one or more substrates via vapor deposition processes using the Vanadium-containing film forming compositions.

Manganese Oxide Capacitor for Use in Extreme Environments
20170084398 · 2017-03-23 ·

A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175 C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of moisture supplied to the manganese dioxide. In this manner, the solid electrolyte is less likely to undergo an adverse reaction under extreme conditions, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.