A hybrid microwave integrated circuit mounting and tuning technique is disclosed whereby electrically shunt mounted unpackaged diode chips, or other semiconductor chips, may be mounted on top of the substrate on which the microstrip transmission line is formed and the components for eliminating, by resonance, the capacitances and parasitic inductances of the semiconductor chips and leads, and supplying any desired DC bias, likewise, are mounted on top of the substrate.

An improved microcircuit package is provided for integrated circuit chips, or the like, and which greatly simplifies the manner in which electrical connections may be made between the contacts on the chip and the terminal electrodes and other connections of the microcircuit. The package of the invention comprises a substrate of glass ceramic, polymide, or the like, having adhesive electric conductors formed on its surface, which conductors make connection between the contacts on the integrated c...

An insulated gate field effect transistor inverter and method of fabrication is disclosed. The invention comprises two field effect transistors integrated on a semiconductor substrate. The configuration has a common source and is thus compatible with integrated circuit fabrication processes. The channel length of one of the two field effect transistors is made extremely small utilizing the method of the invention, enabling significant reduction in size of the inverter. In accordance with this me...

An integrated turbopropulsion system is disclosed consisting of a variable air induction system, a turbine engine and an exhaust nozzle/ejector. Control of the total system is provided by a plurality of basic control systems consisting of separate controls for each individual system variable. A supervisory control receives inputs from selected basic controls and from external signals, and provides additional inputs to the basic controls to permit the basic controls to increase the performance of...

A portion of a layer of monocrystalline silicon on a substrate is completely oxidized through to provide islands of silicon spaced apart by the portion of silicon dioxide. Spaced apart, thin layers of semiconductor material are provided on the silicon dioxide portion. Different semiconductor components are provided within the semiconductor islands and within the thin semiconductor layers. Preferably, the upper surfaces of the silicon islands and the silicon dioxide isolating portions are substan...

The integrated circuit described is a function generator which, for example, is eminently suited for use in a shutter system of an automatic photographic camera. The current which is delivered by the photodiode and is a measure of the intensity of the light incident on the objective of the camera is supplied to this function generator as the input current. This current is converted, by means of a voltage which is generated in the generator and is a function of the film speed of the film used and...

A universal logical integrated circuit comprises a plurality of word lines crossing a plurality of digit lines driven by input variables, and fixed memory elements installed at individual cross-points of the word and digit lines, the memory contents of the memory elements being programmable, whereby a desired function is realized.

An integrated difference amplifier comprising a gain controlled first differential amplifier arrangement which is suitable for amplifying signals of low value and a satisfactory signal-to-noise ratio. In case of an increasing signal intensity the first differential amplifier arrangement is cut off and the signal amplification is taken over by a second differential amplifier arrangement which is suitable for processing large signal amplitudes.

An asphalt plant comprising a vertically upwardly extending support framework, a heated storage hopper or tank supported on the framework, and an asphalt mixing system supported on the framework above the upper end of the heated storage hopper. The mixing system includes a mixer, commonly called a pug mill, for hot liquid asphalt and sand and stone, a weigh hopper positioned above the mixer and arranged to deposit controlled amounts of sand and stone into the mixer, and a second storage hopper f...

A sheet metal terminal is formed of spring metal such as brass with a plurality of terminals attached to one another in chain fashion by a carrier strip of scrap of the metal blank from which the terminals are formed. Each terminal is open at an end and has a mounting lug or tongue at its opposite end. The lugs or tongues of a plurality of interconnected terminals are inserted through aligned apertures in a pair of parallel rows in a printed circuit board, following which the terminals are flow ...