Abstract: A solid electrolyte capacitor body is embedded in an electrically insulative block of resin. Output terminals each connected to a respective electrode of the capacitor body project from the block. One output terminal includes a first section fixed to one of the electrodes and a second section electrically insulated from the first section and the capacitor body. A fusible member alone establishes electrical connection between the first and second sections. The fusible member is embedded in a rigid thermally insulative resin which extends between the first and second sections to couple them together mechanically.

Abstract: A ceramic includes a dielectric ceramic body that is made by mixing powders of two barium titanate compositions of widely disparate Curie temperature with a minor quantity of a borate flux and a sintering-inhibitor such as titania or bismuth oxide. A body is formed of this start powders mixture. Upon sintering to maturity at about 1100.degree. C., the capacitor body becomes only partially co-reacted and has a dielectric constant around 2000 that varies no more than about 15% over a board operating temperature range. These properties are not a strong function of sintering conditions leading to good control at manufacturing.

Abstract: A filtered solution of barium hydroxide octahydrate reacted with an aqueous solution of boric acid to provide hydrated .gamma. barium borate having a barium to boron ratio of 1:2 and having fine particle size. The hydrated .gamma. barium borate was converted to the anhydrous .gamma. form at about 300.degree. to 400.degree. C. Further heating to about 600.degree. to 800.degree. C. converted the product to .beta.-BaB.sub.2 O.sub.4. The conversion to the .beta.-form is preferably during sintering of a ceramic dielectric composition to which the .gamma.-BaB.sub.2 O.sub.4 has been added as a flux.

Abstract: A process for providing in an integrated circuit on which there are to be formed at least two levels of metal conductors, includes depositing a first blanket layer of silicon dioxide over the first metal film conductors, spinning on a silicon glass precursor compound carried by an organic vehicle and heat curing to produce a silica coat, covering this sheet by spinning on a layer of photoresist resin and subsequently etching back this stack of insulating layers to leave a thinned but contiguous first silicon dioxide layer, to leave only thick plug portions of the underlying silica coat in deepest recess regions of the underlying silicon dioxide layer and to leave none of the photoresist layer.

Abstract: The average chemical composition of a reaction band at the interface adjacent co-sintered layers of barium titanate and a low K magnesium zinc titanate is found to be Mg.sub.0.5 Ba.sub.0.25 Zn.sub.0.25 TiO.sub.3. That magnesium barium zinc titanate is further shown to be compatible physically and chemically with barium titanate when the two are made adjacent in the green state and are themselves subsequently co-sintered. The preferred structure for use as a printed-wiring substrate capable of containing surface and buried capacitors and resistors, is a stack having a barium titanate layer sandwiched between two magnesium barium zinc titanate layers. The ratio of the dielectric constants (K) of the two materials exceeds 100. Thus, there is the possibility for making large value capacitors buried in the barium titanate while there is little capacitance and cross-talk between conductors in the outer low K material layers.

Abstract: A green ceramic cake is formed comprised of a center layer of fine-ceramic particles sandwiched between two outer layers of relatively coarse-ceramic particles. However, the chemical compositions of the center and outer layers are all essentially the same. The center layer contains a stack of spaced-apart film-patterns of electroding ink. This cake is separated into many individual green monolithic-ceramic capacitors each with electrodes extending conventionally to opposite ends thereof. These capacitors are sintered to mature the ceramic, and conductive terminations are formed at the opposite ends contacting the buried electrodes. The finer start powder of the center layer is relatively expensive, but the resulting fine grain homogenous grain structure there in the finished capacitor permits closely spaced buried electrodes and generally a higher quality dielectric due to greater density and more homogenous composition than is achieved in the cheaper outer layer material.

Abstract: A proximity detector includes a magnet having steel or iron pole piece plates mounted at front and rear pole ends of the magnet, and a silicon integrated circuit mounted to the outer surface of the front pole piece centered about at the magnet pole axis. The integrated circuit includes two essentially identical Hall elements having outputs connected series opposing, i.e. differentially rather than aiding, so that distortion of the magnet field ambient to the integrated circuit caused by a ferromagnetic article passing by results in a gradient field between the Hall elements producing a differential output signal. The dual Hall element integrated circuit leads to a low differential composite offset voltage while the front pole piece renders the magnetic flux density much more uniform further reducing this dual-Hall-element composite offset voltage.

Abstract: To a standard AM radio receiver there is connected an impulse-noise suppression system comprising a preliminary blanking gate adapted for connecting to and for interrupting the AM-modulated signal path at the input of the IF section, and an audio blanking gate adapted for interrupting the audio circuit. Both blanking circuits detect impulse noise at the RF amplifier and with appropriate delays blank both points. Audio blanking masks the audio disturbance caused by the blanking in the AM-modulated-signal path. Audio blanking time is preferably from 2 to 3 times the duration of the blanking of the AM-modulated-signal path and is thus kept very short causing a minimum interruption of the wanted audio signal. Associated with the audio-signal-path blanking circuit is a sample and hold circuit for smoothing the blanked audio signal and virtually eliminating an audio disturbance or noise that is otherwise generated by the audio blanking circuit itself.

Abstract: A green-ceramic parent substrate having buried therein a stack of spaced-apart sheet electrodes, each electrode having multiple tab portions extending in one direction to a plane that is orthogonal to the sheet electrodes and to the one direction. A row of holes is drilled between the tabs and through the ceramic in that plane. A plurality of elemental capacitor substrates are cut from the parent substrate, the cutting including dicing through the row of holes so as to leave a castellated edge in each elemental capacitor substrate. The elemental substrates are then fired to maturity and the castellated edge touched to a reservoir of a conductive paste and heated to form spaced apart conductive terminals contacting tabs of the buried electrodes at only the edge castellations.

Abstract: A capacitor having a wound aluminum foil electrolytic capacitor section contains an electrolyte solution of 10 to 32 wt % diethylammonium fumarate, 10 to 30 wt % N-methylpyrrolidinone, 4 to 7 wt % water, 0.1 to 0.5 wt % ammonium dihydrogen phosphate, with the remainder ethylene glycol. The capacitor is capable of operation at temperatures up to 125.degree. C.

Abstract: A plating activator composition that is largely silver is applied in a thin film to two surface areas of a ceramic chip capacitor. Subsequently, many such chip capacitors are electrolytically nickel plated, e.g. are electro-nickel barrel plated to provide two strongly adhered nickel terminals to the component. This activator composition consists essentially of at elast 85% Ag, from 0.1 to 7% Pd, from 1% to 10% of an element selected from Cu, Si, Bi, Zn, Fe, Ni, Sn, Zr, Nb, Sb, Mn and combinations thereof. These terminals are strong, truly conformal and are highly manufacturable.

Abstract: A plurality of electrolytic capacitor sections are sealed within a common cube-like case. An internal wall divides the case into isolated chambers. Upon sealing of the case, the assembly takes up substantially no more space on a circuit board than an individual capacitor of the prior art. Each capacitor chamber has its own vent located in the case at the junction of a side wall (parallel to the internal wall) and the top wall by means of a bevel which reduces the walls to the desired vent thickness.

Abstract: A mounting ring is secured in the mouth end of a capacitor casing by being engaged under the rolled-over rim of the fully sealed capacitor.

Abstract: An integrated circuit field-to-electrical energy sensor is capable of being energized through two DC voltage supply terminals. Each of a plurality of such sensors, when connected in parallel so as to be energized from a single DC supply voltage source, is capable of recognizing by means of an address code comparator a unique pulse signal code superimposed on the DC supply voltage. Stimulated by that code which is unique to only that sensor, that sensor powers up the transducer, e.g. Hall element, and responds by drawing a particular current pattern from the common DC voltage source indicative of the presence (or absence) of a field, e.g. magnetic, that is ambient to that sensor. Electrically controlled energy to the transducer provided only when the unique code is present is supplied by the switchable of two regulated voltage outputs from a dual voltage regulator having a control input connected to the output of the address code comparator.

Abstract: A porous tantalum body is pressed with a cavity compacted locally, and a connection wire is joined to the tantalum body within the cavity.

Abstract: Anodization of a tantalum pellet in a phosphate/glycol electrolyte is interrupted in order to heat the pellet without bias to a high temperature, then the anodization is completed, then a semiconductor is deposited in the pellet, and then the pellet is heated under bias less than employed during the anodization.

Abstract: A memory device, based upon a field effect transistor having a floating gate is constructed for use in a silicon integrated circuit array of similar memory devices. The memory device includes only two polysilicon layers, a portion of each polysilicon layer being connected to each other through a via hole in an intervening silicon dioxide layer to form the floating gate.

Abstract: A Hall element is formed in one surface of a silicon die. A trench is etched away in the opposite die surface in a region adjacent the Hall element. An insulating silicon dioxide is grown on both surfaces and a layer of ferromagnetic metal is deposited on both surfaces to form a pair of pole pieces intimately integrated with the Hall element.

Abstract: A low cost aluminum electrolytic capacitor package having axial anode and cathode leads extending in one direction is capable of being seated and wave-solder connected in horizontal position to a printed circuit board without rolling, which unwanted rolling may result in withdrawal of one lead that consequently may not receive solder. A dummy lead is bonded to the opposite end of the package to stabilize the capacitor after solder mounting. One of the three leads has an ox-bow bend that tends to stop the unwanted rolling.

Abstract: A porous tantalum anode body is sintered onto a strip having an incurvate member which is embedded in the body and an elongated portion of the strip which serves as the anode connection.