摘要:
A capacitor comprising: a thin film laminate including a plurality of dielectric thin films and a plurality of electrode conductor thin films laminated alternately; and first kind terminals and second kind terminals formed over a first main surface of said thin film laminate and isolated from each other in a DC current, wherein a first kind electrode conductor thin films electrically connecting with said first kind terminals and a second kind electrode conductor thin films electrically connecting with said second kind terminals are so alternately laminated in a laminate direction as are separated by said dielectric thin films, and a first dielectric thin film, an other kind electrode conductor thin film and a second dielectric thin film are laminated in this order between one same kind electrode conductor thin film and other same kind electrode conductor thin film adjoining in said laminate direction, and first through holes, second through holes and the like are defined herein.
摘要:
A multilayer electronic component includes a plurality of dielectric layers interleaved with a plurality of internal electrode elements and a plurality of internal anchor tabs. Portions of the internal electrode elements and anchor tabs are exposed along the periphery of the electronic component in one or more aligned columns. Each exposed portion is within a predetermined distance from other exposed portions in a given column such that bridged terminations may be formed by depositing one or more plated termination materials over selected of the respectively aligned columns. Internal anchor tabs may be provided and exposed in prearranged relationships with other exposed conductive portions to help nucleate metallized plating material along the periphery of a device. External anchor tabs or lands may be provided to form terminations that extend to top and/or bottom surfaces of the device. Selected of the conductive elements may be formed by a finite volume percentage of ceramic material for enhanced durability, and external lands may be thicker than internal conductive elements and/or may also be embedded in top and/or bottom component surfaces. A variety of potential internal electrode configurations are possible including ones configured for orientation-insensitive component mounting and for high density peripheral termination interdigitated capacitors.
摘要:
The invention includes capacitor constructions comprising a layer of aluminum oxide between a high-k dielectric material and a layer comprising titanium and nitrogen. The layer comprising titanium and nitrogen can be, for example, titanium nitride and/or boron-doped titanium nitride. The capacitor constructions can be incorporated into DRAM cells, which in turn can be incorporated into electronic systems. The invention also includes methods of forming capacitor constructions.
摘要:
To provide a capacitor device that can be made lighter in weight, thin shaped, and miniaturized, which is comprised of a plurality of conductive pattern electrodes 18 and 22 electrically separated by a separation groove 19; a capacitor element 15 including an anode lead 16 fixed to the one conductive pattern electrode 18 and a cathode lead 17 fixed to the other conductive pattern electrode 22; an insulating resin 24 for covering the capacitor element 15 and a part working as the conductive pattern electrodes 18 and 22 except for a lower face of the conductive pattern electrodes 18 and 22, and for integrally supporting the conductive pattern electrode and the capacitor element.
摘要:
An embedded microelectronic capacitor equipped with geometrically-centered electrodes which includes an upper electrode plate of a first polarity; a middle electrode plate of a second polarity opposite to the first polarity; at least one lower electrode plate of the first polarity in electrical communication with the upper electrode plate through a center via. The center via is positioned at a distance from a geometric center of the middle electrode plate of not larger than 50% of the diameter of the plate, and preferably not larger than 30% of the diameter.
摘要:
There is provided the capacitor which has the lower electrode having a structure in which the first conductive layer containing a first metal, the second conductive layer that is formed on the first conductive layer and made of the metal oxide of the second metal different from the first metal, and the third conductive layer that is formed on the second conductive layer and made of the third metal different from the first metal are formed sequentially; the dielectric layer formed on the lower electrode; and the upper electrode formed on the capacitor dielectric layer.
摘要:
A monolithic ceramic capacitor includes a plurality of stacked ceramic dielectric layers, thin internal conductors that are each placed between the ceramic dielectric layers and arranged in parallel, and external conductors each electrically connected to ends of the corresponding internal conductors. The ceramic dielectric layers have a thickness of about 0.5 nullm to less than about 1.5 nullm. The internal conductors have a thickness of about 0.1 nullm to about 0.4 nullm. The internal conductors each have spaces therein and the total area percentage of the spaces in each internal conductor is more than about 10% to less than about 40% of the area of the internal conductor. The ceramic dielectric layers contain a sintering additive containing Si, and the sintering additive is placed in the spaces in a segregated manner.
摘要:
A window via capacitor comprises a stacked multilayer configuration of at least one bottom layer, a plurality of first and second layers, a transition layer and a cover layer. Each first and second layer is preferably characterized by a sheet of dielectric material with a respective first or second electrode plate provided thereon. Adjacent first and second electrode plates form opposing active capacitor plates in the multilayer configuration. Portions of each first and second electrode plate extend to and are exposed on selected periphery side portions. Electrode portions of each transition layer are aligned in respective similar locations to the first and second electrode plates such that peripheral terminations can connect selected electrode portions of a first polarity together and selected portions of the opposing polarity together. Solder balls may also be applied to window vias to yield a capacitor compatible with BGA mounting technology.
摘要:
A capacitor 19 comprises a lower electrode 14 formed on a substrate 10, an upper electrode 18 opposed to the lower electrode, and a capacitor dielectric film 16 formed between the lower electrode and the upper electrode, in which at least one of the lower electrode and the upper electrodes is an electrode of a metal substituted layer. The lower electrodes of polysilicon are formed, and then after the high-temperature heat processing for improving film quality of the capacitor dielectric film has been performed, the lower electrodes of polysilicon is substituted with aluminum to form the lower electrodes of aluminum, whereby aluminum, which cannot withstand the heat processing for improving film quality of the capacitor dielectric film can be used as a material of the lower electrodes. Thus, capacitors having good high-speed response can be formed.
摘要:
A monolithic or essentially monolithic single layer capacitor with high structural strength and capacitance that may be easily and inexpensively manufactured. To this end, sheets of green-state ceramic dielectric material and ceramic/metal composite material are laminated together, diced into individual chips, and fired to sinter the ceramic together. The composite material may comprise an amount of metal sufficient to render the composite conductive whereby the composite may be used for one or both electrodes and for mounting the capacitor to the pc board. Alternatively, the composite material may comprise an amount of metal insufficient to render the composite conductive but sufficient to act as seed points for an electroplating process wherein the composite is preferentially coated with conductive metal, and the coated composite is mounted to the pc board and the coating provides an electrical connection to an internal electrode. By the present invention, vertically-oriented surface mountable capacitors and hybrid capacitors are provided.