Abstract:
The capacitive element of the present invention includes a plurality of cylindrical metal pieces having different sizes, which are disposed in multiple layers surrounding a strip-shaped metal piece. A dielectric film and a conductive material layer are located between the metal piece innermostly located among the plurality of cylindrical metal pieces, and the strip-shaped metal piece, and between adjoining cylindrical metal pieces. Further, the dielectric film and the conductive material layer are laminated and disposed at positions symmetric with respect to the side wall of respective cylindrical metal piece.
Abstract:
Electromagnetic waves leaking from a power distribution circuit provided on a printed wiring substrate or in a semiconductor package are suppressed, and degradation of the waveform of a signal generated by a high-speed digital circuit. A strip line device comprises an elongated metal plate (10) having a valve action and coated with a dielectric film (20). A conductive layer (30) is formed to cover the valve-acting metal, with the dielectric film (20) interposed therebetween. The characteristic impedance as seen from its input terminal can be low over a wide range.
Abstract:
An element of parallel flat plate line type suitable for operation at a higher speed and with a higher frequency is provided. The element is characterized by including a first metallic member 1 including a flat plate section 11 and a projected section 12 in which a plurality of projections are formed to stand on one surface of the flat plate section 11 in a direction substantially vertical to the surface with gaps therebetween, a second metallic member 2 including a flat plate section 21 and a projected section 22 in which a plurality of projections are formed to stand on one surface of the flat plate section 21 in a direction substantially vertical to the surface with gaps therebetween, and a dielectric film 31 formed between the projections and the gaps of the element of parallel flat plate line type formed by inserting the projections of the first metallic member 1 in the gap of the second metallic member 2 and inserting the projections of the second metallic member 2 in the gap of the first metallic member 1, wherein a transmission line is formed between the first metallic member 1 and the second metallic member 2 along the dielectric film 31, the transmission line being formed to have transmittivity ranging from −140 dB to −20 dB for a high-frequency electromagnetic wave ranging from 100 kHz to 10 GHz supplied from one terminal.
Abstract:
Provided are a spacer capable of avoiding a poor connection due to the suction of solder when the clearance width between a soldered semiconductor device and a printed circuit board is made constant, and a manufacturing method for the spacer. The spacer includes an electrically insulating base member, and at least one solder guiding terminal. The base member has a bottom face, a top face and at least one side face, of which the bottom face and the top face are out of contact with each other whereas the side face contacts one or both the bottom face and the top face. The solder guiding terminal covers the bottom face partially, the top face partially, and the side face partially or wholly. A solder guiding face as the surface of a portion of the solder guiding terminal covering the side face is not normal to the bottom face.
Abstract:
[Problem to be Solved] To provide a helical capacitor for controlling a high-frequency power which flows in power lines, and a manufacturing method of the helical capacitor.[Solution] A helical capacitor is constituted by helically spiraling a belt shape capacitor line 1001 which includes an internal metal body to be a helically spiraled belt-shape internal electrical conductor, a dielectric film covering the internal electrical conductor, and an electrically conductive layer covering the dielectric film. The capacitor line of belt shape 1001 can be wrapped around the internal support body 1200. Internal metal body lead terminals 1311, 1321 are respectively formed at both ends of the internal metal body, and electrically conductive layer lead terminals 1312, 1322 can be respectively formed at both ends of the electrically conductive layer.
Abstract:
A dielectric oxide film is formed on the surface of a valve metal plate formed of aluminum and a conductive polymer layer is provided so as to cover the valve metal plate and the dielectric oxide film. The conductive polymer layer is formed of polyaniline having para-toluenesulfonic acid as a dopant. A conductive carbon paste layer and a silver paste layer are provided at the outer side of the conductive polymer layer and a metal plate, comprising a copper foil, is overlapped onto the silver paste layer. Anode lead terminals are connected to the ends of the valve metal plate and the respective end parts of the metal plate are arranged as cathode lead terminals. A shield strip line device, which is low in impedance, especially in high-frequency ranges of 100 MHz or more, and is favorably adapted to high speed and high frequencies, mainly for use as a bypass device for a noise filter or as a decoupling device, is thus obtained.
Abstract:
A continuous line process for making a packaged cosmetic device comprising a pre-formed sheet and a coating composition in a sealed package, wherein the pre-formed sheet is produced from a sol phase composition comprising a solvent and a gelling agent having a sol-gel transition point between about the melting point of the solvent and about the boiling point of the solvent by a process comprising heating the so phase composition, forming surfaces of the sol phase composition by pressing the sol phase composition between a plurality of liners, cooling the sol phase composition into a gel phase, cutting the gel phase composition to form the pre-formed sheet.
Abstract:
Disclosed is a continuous line process for making a pre-formed object having a plurality of surfaces comprising the steps of: (1) providing a sol phase of the composition comprising a solvent and a gelling agent having a sol-gel transition point between about the melting point of the solvent and about the boiling point of the solvent; (2) forming surfaces of the sol phase composition by passing through a surface forming system, the surface forming system pressing the sol phase composition between a plurality of liners; (3) cooling the sol phase composition into a gel phase; and (4) cutting the gel phase composition; wherein the pre-formed object is free of a supporting substrate.
Abstract:
Disclosed is a continuous line process for making a pre-formed object having a plurality of surfaces comprising the steps of:(1) providing a sol phase of the composition comprising a solvent and a gelling agent having a sol-gel transition point between about the melting point of the solvent and about the boiling point of the solvent;(2) forming surfaces of the sol phase composition by passing through a surface forming system, the surface forming system pressing the sol phase composition between a plurality of liners;(3) cooling the sol phase composition into a gel phase; and(4) cutting the gel phase composition;wherein the pre-formed object is free of a supporting substrate.