Abstract: The present invention is directed to an EMI feedthrough filter terminal assembly. The EMI feedthrough filter terminal assembly comprises: a feedthrough filter capacitor having a plurality of first electrode layers and a plurality of second electrode layers, a first passageway therethrough having a first termination surface conductively coupling the plurality of first electrode layers, a second termination surface conductively coupling the plurality of second electrode layers; a feedthrough ferrule conductively coupled to the feedthrough filter capacitor via the second termination surface; at least one conductive terminal pin extending through the passageway in conductive relation with the plurality of first electrode layers; an insulator fixed to the feedthrough ferrule for conductively isolating the conductive terminal pin from the feedthrough ferrule; and a laminated insulative layer between the insulator and the feedthrough filter capacitor.

Abstract: The present invention is directed to a multilayer ceramic capacitor. The capacitor comprises a top surface, a bottom surface, and at least one side surface connecting the top surface and the bottom surface. The capacitor comprises a main body containing a plurality of alternating dielectric layers and internal electrode layers comprising a first plurality of internal electrode layers and a second plurality of internal electrode layers. A first through-hole conductive via electrically connects the first plurality of internal electrode layers to a first external terminal on the top surface and a first external terminal on the bottom surface of the capacitor. A second through-hole conductive via electrically connects the second plurality of internal electrode layers to a second external terminal on the top surface and a second external terminal on the bottom surface of the capacitor. The at least one side surface does not include an external terminal.

Abstract: A multilayer capacitor may include a monolithic body including a plurality of dielectric layers. A first external terminal may be disposed along a first end, and a second external terminal may be disposed along a second end of the capacitor. The external terminals may include respective bottom portions that extend along a bottom surface of the capacitor. The bottom portions of the external terminals may be spaced apart by a bottom external terminal spacing distance. A bottom shield electrode may be arranged within the monolithic body between a plurality of active electrodes and the bottom surface of the capacitor. The bottom shield electrode may be spaced apart from the bottom surface of the capacitor by a bottom-shield-to-bottom distance that may range from about 3 microns to about 100 microns. A ratio of a length of the capacitor to the bottom external terminal spacing distance may be less than about 4.

Abstract: A solid electrolytic capacitor is provided that contains a casing material that encapsulates the capacitor element. The casing material is formed from a curable resinous matrix that has a coefficient of thermal expansion of about 42 ppm/° C. or less at a temperature above the glass transition temperature of the resinous matrix. Further, the capacitor exhibits an initial equivalence series resistance of about 200 mohms or less as determined at an operating frequency of 100 kHz and temperature of 23° C., and the ratio of the equivalence series resistance of the capacitor after being exposed to a temperature of 125° C. for 560 hours to the initial equivalence series resistance of the capacitor is about 2.0 or less.

Abstract: A multilayer filter may include a plurality of dielectric layers stacked in a Z-direction. A first conductive layer may overlie one of the dielectric layers, and a second conductive layer may overlie another of the dielectric layers and be spaced apart from the first conductive layer in the Z-direction. A first via may be connected with the second conductive layer at a first location. A second via may be connected with the second conductive layer at a second location that is spaced apart in a first direction from the first location. The first conductive layer may overlap the second conductive layer at an overlapping area to form a capacitor. At least a portion of the overlapping area may be located between the first location and the second location in the first direction. The second conductive layer may be free of via connections that intersect the overlapping area.

Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and that includes conductive polymer particles. The anode body has an exterior surface that spans in a longitudinal direction to define a length of the anode body, wherein at least one channel is recessed into the exterior surface of the anode body. The channel is defined by opposing sidewalls that intersect at a base, wherein the channel has a width of from about 0.4 millimeters to about 3 millimeters and a depth of from about 50 micrometers to about 350 micrometers.

Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body; a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric and that includes a conductive polymer and a depolarizer.

Abstract: A self-aligning capacitor electrode assembly having an improved breakdown voltage is disclosed. The electrode assembly comprises a first electrode having a generally planar shape and a length in a first direction. The electrode assembly also comprises a second electrode having a generally planar shape and a length in a second direction. The second electrode overlaps the first electrode such that an overlapping region is formed. The overlapping region has an area that is insensitive to a relative misalignment in the first direction between the first electrode and the second electrode that is less than a first offset distance. A ratio of the length of the first electrode to the first offset distance is less than about 45.

Abstract: A multilayer filter may include a plurality of dielectric layers stacked in a Z-direction. A first conductive layer may overlie one of the dielectric layers, and a second conductive layer may overlie another of the dielectric layers and be spaced apart from the first conductive layer in the Z-direction. A first via may be connected with the second conductive layer at a first location. A second via may be connected with the second conductive layer at a second location that is spaced apart in a first direction from the first location. The first conductive layer may overlap the second conductive layer at an overlapping area to form a capacitor. At least a portion of the overlapping area may be located between the first location and the second location in the first direction. The second conductive layer may be free of via connections that intersect the overlapping area.

Abstract: A controller and system for tuning a voltage tunable capacitor is provided. The controller may include at least one analog-to-digital converter configured to receive at least one input signal and convert the at least one input signal into at least one digital signal. The controller may include a processor configured to process the at least one digital signal using logic to generate an output signal. The controller may include a charge pump configured to boost the output signal to generate a boosted output signal. The controller may be configured to provide the boosted output signal to the voltage tunable capacitor to adjust a bias voltage of the voltage tunable capacitor.

Abstract: Disclosed are apparatus and a method for providing an integrated multiterminal multilayer ceramic device that has three or more capacitive elements. Two of such capacitive elements may be in series, with a third in parallel. The integrated device may be packaged as an overmolded three leaded component, or can be mounted as SMD (surface mount device). The integrated device may also be combined with a separate varistor in a stacked arrangement of leaded components.

Abstract: A wet electrolytic capacitor containing a cathode, fluidic working electrolyte, and planar anode formed from an anodically oxidized sintered porous pellet is provided. The pellet may be formed from a pressed valve metal powder, which in turn, is formed by reacting an oxide of a valve metal compound (e.g., tantalum pentoxide) with a reducing agent that contains a metal having an oxidation state of 2 or more (e.g., magnesium). Through the use of such a powder, the present inventors have discovered that higher capacitance levels can be achieved than previously thought possible for the high voltage capacitors employed in implantable medical devices.

Abstract: A multilayer ceramic capacitor may include a monolithic body including a plurality of dielectric layers and a plurality of electrode regions. The plurality of electrode regions can include a dielectric region, an active electrode region, and a shield electrode region. The active electrode region may be located between the dielectric region and the shield electrode region in a Z-direction. The dielectric region may extend from the active electrode region to the top surface of the broadband multilayer ceramic capacitor. The capacitor may include a plurality of active electrodes arranged within the active electrode region and at least one shield electrode arranged within the shield electrode region. The dielectric region may be free of electrode layers that extend greater than 25% of a length of the capacitor. A ratio of a capacitor thickness to a thickness of the dielectric region may be less than about 20.

Abstract: A capacitor that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that comprises a sintered porous anode body formed from a powder having a specific charge of about 100,000 ?F*V/g or more; a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte contains an in situ-polymerized conductive polymer. Further, the capacitor exhibits a leakage current of about 110 microamps or less at a temperature of about 23° C. after being subjected to an applied rated voltage.

Abstract: A capacitor that comprises a solid electrolytic capacitor element, a casing material that encapsulates the capacitor element, an anode termination, and a cathode termination is provided. A nanocoating is disposed on at least a portion of the capacitor element, casing material, anode termination, cathode termination, or a combination thereof. The nanocoating has an average thickness of about 2,000 nanometers or less and contains a vapor-deposited polymer.

Abstract: A solid electrolytic capacitor and method for making the capacitor are provided. The capacitor includes a porous anode body, an anode foil, a dielectric, a cathode, and anode and cathode terminations. The foil is disposed on a planar surface of the anode body, and both comprise a valve metal. Further, the dielectric overlies at least a portion of the anode body, and the dielectric is also formed within the anode body. The cathode overlies at least a portion of the dielectric that overlies the anode body and includes a solid electrolyte, where at least a portion of a lower surface of the foil is free of both the dielectric and the solid electrolyte. In addition, the anode termination is electrically connected to the portion of the lower surface of the foil that is free of both the dielectric and the solid electrolyte, and the cathode termination is electrically connected to the solid electrolyte.

Abstract: A solid electrolytic capacitor and method for making the capacitor are provided. The capacitor includes a sintered porous anode body formed from a valve metal, a metallic physical vapor deposition (PVD) layer disposed directly on a planar surface of the anode body, a dielectric, a cathode, and anode and cathode terminations. The dielectric overlies at least a portion of the anode body and is also formed within the anode body. The cathode overlies at least a portion of the dielectric that overlies the anode body and includes a solid electrolyte, and a portion of a lower surface of the metallic PVD layer is free of both the dielectric and solid electrolyte. The anode termination is electrically connected to the portion of the lower surface of the metallic PVD layer that is free of both the dielectric and solid electrolyte, and the cathode termination is electrically connected to the solid electrolyte.

Abstract: A solid electrolytic capacitor that comprises a capacitor element that contains a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric is provided. An anode lead wire extends from the capacitor element in a longitudinal direction, wherein the lead wire defines an external surface having a plurality of distinct recessed regions that are spaced apart along the longitudinal direction. A hydrophobic coating is disposed on at least a portion of the external surface of the anode lead wire. Further, an anode termination is in electrical connection with the anode lead wire and a cathode termination is in electrical connection with the solid electrolyte.

Abstract: An ultracapacitor that contains at least one electrochemical cell is provided. The cell includes a first electrode that contains a first carbonaceous coating (e.g., activated carbon particles) electrically coupled to a first current collector, a second electrode that contains a second carbonaceous coating (e.g., activated carbon particles) electrically coupled to a second current collector, an aqueous electrolyte in ionic contact with the first electrode and the second electrode and that contains a polyprotic acid (e.g., sulfuric acid), and a separator that is positioned between the first and second electrodes. Through selective control over the particular nature of the materials used to form the ultracapacitor, as well as the manner in which they are formed, a variety of beneficial properties may be achieved.