Abstract: A package construction has electrodes of a double layer capacitor element located on the opposite sides of the element. All of the electrodes are led out in the same direction. A pair of electrode plates are disposed on the element with an insulator plate having a through-hole interposed between the two plates. A terminal of an inner electrode plate penetrates through the through-hole in the insulator plate and through an aperture formed in the outer electrode plate. The capacitor is assembled in such manner that the inner electrode plate is electrically connected to one electrode of the element, while the outer electrode plate is electrically connected to the other electrode of the element via a conductive casing.

Abstract: A capacitor trimming system for a quartz-crystal oscillator in a watch and/or a clock for providing a punctual watch and/or a clock has been found. The system comprises an oscillation circuit including at least a quartz-crystal piece, a trimmer capacitor for adjusting the oscillating frequency of the quartz-crystal piece, a semiconductor electronic circuit for operating said quartz-crystal piece, and apparatus for adjusting automatically the trimmer capacitor so that the oscillating frequency becomes the same as the desired reference frequency. The trimmer capacitor comprises of at least a fixed outer trimming electrode, an inner common electrode fixed parallel to said trimming electrode and a dielectric body sandwiched between the two electrodes.

Abstract: An adjustable thick film capacitor includes a conductive paste layer which is fired to form a first electrode on a substrate, at least one dielectric paste layer over the conductive electrode which is also fired, and an organo-metallic paste layer over the dielectric layer, which is fired at high temperature to form a very thin sintered metallic conductive layer for the second electrode. The organo-metallic paste includes molecules having conducting particles, such as gold atoms, which after firing form a residue layer having a thickness of the order of 1 micron. This thin electrode can be trimmed by an accurately controlled low energy laser beam to adjust the capacitor value.

Abstract: An adjustable capacitor is provided on a printed circuit board or hybrid thick film circuit substrate having first and second metallic sheets separated by a sheet or layer of insulating material. The second sheet is provided with an adjustable portion. The second sheet and adjustable portion are divided into two parts by a cut along a first line. These two parts form capacitors with the first sheet. A third capacitor is formed between the two parts, and the value of this third capacitor can be trimmed or adjusted by cuts across the adjustable portion and preferably perpendicular to the first line until the desired value for the third capacitor is reached.

Abstract: A pressure-sensing capacitor and a method for trimming the capacitor is disclosed. The capacitor includes a pair of spaced flexible parallel quartz plates. A thin circular layer of conductive metal is formed on the opposing inner surfaces of the plates to define the electrodes of the capacitor. A glass frit sealing compound, forming a concentric ring about the conductive layers, is disposed between the plates to seal the evacuated space between the plates. The thickness of the ring is small enough so that the capacitance between the electrodes is higher by an unknown amount than the desired value of capacitance at every point in the range of variation of the value of pressure. The capacitor is trimmed by first measuring the capacitance value at zero pressure and also at a maximum pressure. The size and location of a path on one of the electrodes is computed from the measured capacitance values and the deflection characteristics of the plates.

Abstract: A flat capacitor is manufactured by placing an anode foil within a fold of spacer within a folded cathode foil, impregnating with electrolyte, and heat-sealing between layers of heat-sealable polymer. The foils have electrode tabs attached thereto that are spaced laterally from each other and extend beyond the same edges of the polymer. Leads are attached to the tabs external to the sealed polymer edges.

Abstract: Cathode foil for electrolytic capacitors is formed of aluminium having a copper content between 0.15 and 5.7 weight % and a total amount of contaminations of not more than 2 weight %.

Abstract: An electrolytic capacitor which may use dimethyl formamide as the electrolyte has a metal housing and a variable thickness molded glass or mineral filled plastic header having a bolster ring adjacent the peripheral edge of the header, major rib members molded on the header which cooperate with further retainer members located at the bottom of the capacitor housing to retain the housing in position, and radial and circumferential members located within said bolster ring on the under side of said header certain of which members are of smaller thickness than the bolster ring, and which further includes areas of relatively thin dimensions located betweeen said circumferential members and said bolster ring, and between said rib members and said circumferential members.

Abstract: A capacitor suitable for integration into a monolithic integrated circuit is fabricated in two parallel connected sections. One section, using a thin oxide, constitutes most of the capacitance. A second section fabricated on a thick oxide constitutes a smaller capacitance per unit area but can be laser trimmed to provide a precise capacitance without damage to the integrated circuit. The trimmable section is desirably made using a conductive electrode material that is readily removed with laser energy.

Abstract: A lead wire assembly is provided which permits soldering connections and welding connections to be made to the anode and cathode of solid electrolytic capacitor body while applying force in a single direction to the lead wire assembly during soldering and welding. Automatic processing of a multiplicity of capacitor bodies is facilitated by the present invention.

Abstract: A highly solderable tightly bonded termination is provided on the exterior cathode and/or anode surfaces of a solid electrolyte capacitor. A conductive resin is applied to a surface of the capacitor body to be terminated. Deposited on this wet surrface are solderable metal particles, such as copper, prior to heat curing the resin. Solderable anode and cathode terminations may be provided by this method.

Abstract: An electrical device body including an electrode and a radiation semi-cured or cured polymer containing material. The electrode is formed into a configuration such as a convolutely wound electrical device body. The radiation semi-cured or cured polymer containing material is disposed over the body to help maintain the configuration of the body.A method of making the electrical device body including the steps of applying radiation curable polymer containing material to an electrode formed into a configuration such as a convolutely wound body configuration, irradiating applied material to semi-cure or completely cure the applied material and help maintain the configuration of the body.High energy irradiation from an energy source such as ultra-violet light or an electron beam is used to cross-link or cure applied polymeric material.

Abstract: A tunable, extended range, multilayered ceramic chip capacitor for incorporation into a plurality of substrate designs of micro-miniature circuitry and hybrid integrated circuits, comprising a multilayered ceramic chip capacitor; said chip having an electrode pattern as both upper and lower electrode layers embedded within the dielectric, forming a homogeneous chip capacitor structure. The capacitance range of the said chip capacitor is extended by the addition of a rotor plate positioned over a portion of said electrode pattern by a rotor contact spring which also provides a rotor contact terminal, such that said rotor plate may be rotated over the stator portion of said electrode pattern to provide a precisely tunable extended range of capacitance, a stator terminal spring to provide means to grip said extended range chip capacitor and means for circuit connection.