Abstract: A capacitor laminate is described either as an intermediate product for use in a capacitive printed circuit board or as part of the assembled printed circuit board in order to provide a bypass capacitive function for large numbers of devices mounted or formed on the printed circuit board, the capacitor laminate being formed from sheets of conductive material and an intermediate sheet of dielectric material forming the laminated capacitor as a structurally rigid assembly and facilitating its inclusion within the PCB, components of the capacitor laminate having selected characteristics whereby each individual device is provided with capacitance by a proportional portion of the capacitor laminate and by borrowed capacitance from other portions of the capacitor laminate, the capacitive function of the capacitor laminate being dependent upon random firing or operation of the devices. Methods of manufacture for the capacitor laminate as well as the capacitive PCB are also described.

Abstract: A dielectric liquid is provided comprising (a) a fluorinated, inert liquid, or a mixture of fluorinated, inert liquids and (b) a fluorine-containing, nonionic sulfonate ester or sulfonamide, such that the dielectric liquid has a dielectric constant intermediate or between that of component (a) and component (b) and the dielectric constant represents the relative amounts of the relatively lower dielectric constant of the fluorinated, inert liquid per se and the relatively higher dielectric constant of the sulfonate ester or sulfonamide per se and components (a) and (b) of the dielectric liquid are miscible with one another over the operating temperature range of the electrical device employing the dielectric liquid.

Abstract: A pressure sensor comprises a housing having a pressurized fluid inlet, and a supporting member installed in an inner space of the housing and having one end surface of the pressurized fluid inlet side, the other end surface opposite to the one end surface, and a connection port opened at the one end surface and the other end surface. A pressure sensitive element is supported on the one end surface of the supporting member in the inner space of the housing to partition the inner space of the housing into a pressure sensitive chamber communicating with the pressurized fluid inlet and a sealing chamber isolated from the pressurized fluid inlet. An electric circuit module is supported on the other end surface of the supporting member in the inner space of the housing and is electrically connected to the pressure sensitive element through the connection port of the supporting member.

Abstract: The orientation of a polarized capacitor is determined by applying first and second signals to the inner and outer conducting plates of the capacitor, the first signal being out of phase with the second signal, such that the outer plate of the capacitor generates an external electric field responsive to its respective signal which is greater in magnitude than the external electric field generated by the first plate. The electric field is sensed proximate to the capacitor and a third signal is output responsive to the electric field. The phase of the third signal is used to determine the orientation of the capacitor.

Abstract: A capacitor which includes a dielectric layer, a metal electrode and a capacity adjusting electrode erodable by exposure to light energy, the capacity adjusting electrode being a film made of at least one selected from metallic oxides, metallic nitride and metallic boride.

Abstract: A capacitor having opposed first and second metallic films separated by a dielectric. The first metallic film includes a first relatively narrow metal-free zone spaced from an edge thereof so as to form a first marginal metal film band at an edge which is spaced by the first metal-free zone from the remainder of the first metallic film. The first metallic film further includes a first metal-free margin lane arranged between the metal-free zone and an edge thereof to separate the first metallic film into first and second segments. The second metallic film includes a second relatively narrow metal-free zone spaced from an edge thereof so as to form a second marginal metal film band at an edge which is spaced by the second metal-free zone from the remainder of the second metallic film. The second metallic film further includes a second metal-free margin lane arranged between the second metal-free zone and an edge thereof to separate the second metallic film into third and fourth segments.

Abstract: A ceramic of known composition exhibiting superconductivity below a critical temperature is caused to exhibit superconductivity or superconductor-like behaviour at room temperature by the application of an electrochemical potential. The effect is believed to arise from an increased population of the monovalent state of copper and other methods are proposed for creating such a population without cooling.

Abstract: A composite electric part of a stacked multi-layer structure is composed of a capacor layer and a coil layer. The coil layer comprises a plurality of coils buried in a magnetic material. At least one of the coils includes a plurality of coil conductors which comprises combinations each of two coil conductors would spirally in opposite directions around respective winding axes extending substantially coaxially with each other, and mutually connected such that magnetic fields are generated in a same direction by the two coil conductors. A miniature size of composite electric part exhibiting a high inductance value is realized.

Abstract: A surface-mountable composite electronic part comprising a capacitor element which includes a dielectric ceramic member and a film resistor combined therewith for forming an RC circuit. A plurality of external terminals are formed on both end surfaces of the capacitor element for extracting capacitance, while a plurality of wiring patterns are formed on a first major surface of the capacitor element to be connected with the external terminals. The film resistor is formed on the first major surface of the capacitor element on a protective film made of a glass material, and connects a pair of the wiring patterns with each other. When the film resistor is trimmed with a laser beam, the protective film prevents the dielectric ceramic member forming the capacitor element from being harmed by the laser beam.

Abstract: A ferroelectric memory and its method of making in which a highly c-axis oriented layer (56) of ferroelectric lead zirconate titanate (PZT) is epitaxially deposited at between 640.degree. and 710.degree. C. upon a crystalline film (54) of yttrium barium copper oxide (YBCO), acting both as growth template and bottom electrode. A top electrode (58) is formed over the ferroelectric layer to complete the memory element. The two electrodes are preferably composed of the same perovskite conductor of the same cyrstalline orientation, most preferably, a-axis oriented YBCO. The structure can be grown on a silicon substrate (50) with an intermediate buffer layer (52) of yttria-stabilized zirconia. The ferroelectric behavior is optimized if the structure is cooled from its growth temperature at about 20.degree. C./min.

Abstract: The invention provides a capacitor having increased capacitance comprising one or more main vertical trenches and one or more lateral trenches extending off the main vertical trench. The capacitor has alternating first and second regions, preferably silicon and non-silicon regions (for example, alternating silicon and germanium or alternating silicon and carbon regions). The etch characteristics of the alternating regions are utilized to selectively etch lateral trenches thereby increasing the surface area and capacitance of the capacitor. A method of fabricating the capacitors is also provided.

Abstract: An integrated series capacitor includes two capacitors mounted in series in a unitary insulated package. The capacitors are formed of stacked plates separated by a dielectric material. Every other stacked plate for each capacitor terminates along an outer termination edge that is connected to a solder connection on an end of the insulated package. These stacked plates alternate with every other plate which has an inner termination edge. The inner termination edges of each capacitor are connected. The integrated series capacitor is adapted for connection to a circuit board between a chip supply voltage (Vss) and a ground connection (Vss) to provide a decoupling circuit to replace two separate series wired capacitors.

Abstract: A capacitor laminate is described either as an intermediate product for use in a capacitive printed circuit board or as part of the assembled printed circuit board in order to provide a bypass capacitive function for large numbers of devices mounted or formed on the printed circuit board, the capacitor laminate being formed from sheets of conductive material and an intermediate sheet of dielectric material forming the laminated capacitor as a structurally rigid assembly and facilitating its inclusion within the PCB, components of the capacitor laminate having selected characteristics whereby each individual device is provided with capacitance by a proportional portion of the capacitor laminate and by borrowed capacitance from other portions of the capacitor laminate, the capacitive function of the capacitor laminate being dependent upon random firing or operation of the devices. Methods of manufacture for the capacitor laminate as well as the capacitive PCB are also described.

Abstract: A variable electronic component in the nature of a small sealed capacitor includes a pair of free floating dielectric plates disposed overlying a conductive body which is displaceable therebetween along a linear path. The conductive body is brought into varying degrees of overlapping registration with a conductive layer on the dielectric plates to vary the impedance characteristics of the capacitor between minimum and maximum values.

Abstract: A capacitive pressure sensor including a housing defining a chamber; a seal structure within the housing dividing the chamber into a central pressure chamber and a measurement chamber; a diaphragm positioned within the chamber with a central portion of the diaphragm positioned in the pressure chamber and an annular peripheral portion of the diaphragm positioned in the measurement chamber; and a measurement circuit including an annular electrode carried by the lower face of the annular portion of the diaphragm coacting with a further electrode carried by a confronting portion of the housing and operative to generate an output signal which varies in proportion to the deflection of the diaphragm in response to exposure of the opposite faces of the diaphragm to differential pressures.

Abstract: Compact leak-proof electrolytic capacitors including, between the anode and the cathode, an ultrathin layer of a solid electrolyte, are disclosed. The solid electrolyte comprises a solid solution of (a) an alkali metal salt, a transition metal salt, an ammonium salt, an organic ammonium salt, a zinc salt, a cadmium salt, a mercury salt or a thallium salt of (b) a monbasic, dibasic or tribasic acid other than a haloid acid (c) in a polymer of high solvation power. Preferred salts are the tetrafluoroborates and hexafluoroglutarates of sodium and potassium, and the preferred polymer is a blend of polyethylene oxide with a siloxane-alkylene oxide copolymer. Crosslinking of the polymer is accomplished by using an agent which may be a di -, tri, or polyisocyanate, a multifunctional reagent which is an analogy of the compound to be crosslinked or di - and multifunctional acids, or di - and multifunctional amines. Methods of making such capacitors are also disclosed.

Abstract: The invention provides a method of increasing the capacitance of a capacitor which comprises forming a capacitor having a main vertical trench and one or more lateral trenches extending off the main vertical trench. The capacitor has alternating first and second silicon regions, for example n-doped and p-doped silicon regions. After a main vertical trench is dry etched through the first and second silicon regions, the etch characteristics of the alternating first and second silicon regions are utilized to selectively dry etch lateral trenches, thereby increasing the surface area of the capacitor and the capacitance of the capacitor. Capacitors produced by this method are also provided.

Abstract: The rectifier sub-assembly, formed by high temperature brazing, is glass encapsulated. It has axially extending leads with enlarged head portions. The sub-assembly is prepared for surface mounting by first flattening the leads outwardly from the enlarged head portions. An electrically insulating, heat conductive epoxy body is molded around the capsule, the enlarged head portions and at least a portion of each of the flattened lead sections. The leads are trimmed and if required, bent into the appropriate shape. After forming, the leads are barrel plated to obtain the best solderable surface for the most reliable electrical connection.

Abstract: The invention is a product and method for forming same comprising a storage contact capacitor of a dynamic random access memory (DRAM) device wherein at least two annular rings and a vertical fin of silicon are fabricated in a self-aligned opening parallel to and in contact with the contact area of the substrate. The rings and fin comprise the storage node of the capacitor, and the fin is substantially centered in the rings. The fin is fabricated by forming silicon in a channel remaining after alternating layers of silicon and oxide are deposited in the opening. The final deposition of oxide is subjected to a spacer etch thereby retaining the final oxide only on sidewalls of the channel. The final oxide then functions as a masking pattern for extending the channel by subjecting the alternating layers to subsequent etches. The silicon fin contacts all of the silicon rings thereby providing electrical communication between the fin and the rings.

Abstract: An electric double layer capacitor which has a pair of polarizable electrodes, composed of electrically-conductive substrates. The substrates are coated in layers of a mixture of activated carbon with a water-soluble material-based binding agent, optionally including an agent for improving electric conductivity. The electrodes face each other interposed by a separator, and are impregnated with an electrolyte. The capacitor has the advantageous features of both conventional capacitors using an aqueous electrolyte and those capacitors using an organic solvent electrolyte; in other words, the capacitor can withstand high voltages while holding a low internal resistance.