Abstract: A disk shaped ceramic support has a mounting surface provided as a unitary part of the support with conductors extending generally outward from the mounting surface through the thickness dimension of the support, the outer ends of the conductive leads being connected to a ring of terminal leads. A charge coupled device (CCD) imager chip is secured to the mounting surface to leave a backside illumination surface of the chip unobstructed and electrical interconnections are made from terminal pads on the front surface of the chip to the ends of the conductive leads adjacent the mounting surface. A cover plate attached to the insulating support outwardly of the interconnections encloses the front surface of the chip. In a preferred structure the chip is mounted on an apertured molybdenum disk unitarily attached to the support with the illumination surface of the CCD chip facing the aperture.

Abstract: A method of making a semiconductor device is disclosed in which a plurality of generally parallel conductors are provided, at least one of which has a mounting portion thereon. A semiconductor wafer is coupled to the mounting portion while means are provided for coupling the other conductors to the semiconductor wafer. An integrally molded mass of insulation material embeds the semiconductor wafer, and the mounting portion, as well as the means connecting the conductors to the semiconductor wafer.

Abstract: Continuous type analog data sampled at a high rate automatically is acquired in real time from data acquisition units, established at each of a plurality of spaced source stations. For example in seismic operations the units sense ground motion at spaced detector stations and convert resulting electrical signals to digital representations of such motion. A unique response code is set in each data acquisition unit. From a master station in or adjacent the prospect, data frame pulse sets are transmitted along with a series of channel sync pulses. At each unit digital representations of motion are stored upon receipt of each data frame pulse set. Sync pulses are received and counted at each unit following each data frame pulse set. The count of sync pulses at each said unit is decoded and compared with the respective response codes. In response to coincidence between each decoded count and response code, the stored signal is transmitted to the master station from each said unit.

Abstract: A magnetic bubble domain system in which magnetic bubble domains travel along propagation tracks or paths from one location to another, the complexity of the system being such that individual magnetic bubble domain paths are required to cross each other. A magnetic bubble track crossover element is included in the magnetizable overlay pattern defining the respective magnetic bubble domain propagation paths, being located at the intersection of a pair of such propagation paths so as to regulate the flow of individual bubbles from the respective propagation paths in crossing the intersection to remain undisturbed in continuing their respective courses along the same path. The crossover element is made of the same magnetizable material of the remainder of the magnetizable overlay pattern, e.g. permalloy, as provided on a layer of magnetic material of a type suitable for the propagation of magnetic bubble domains therein.

Abstract: A coaxial-lead, double-plug, glass-sealed semiconductor diode is provided with gold-germanium alloy contacts metallurgically bonded to Dumet alloy plugs.

Abstract: Isolation of integrated circuit components using an insulating substrate (such as ceramic or intrinsic semiconductor) and/or using mesas to separate components laterally and to define passive components.

Abstract: Disclosed is a coaxial waveguide antenna. In a basic form the coaxial waveguide horn for the antenna comprises an inner section operating in a .SIGMA. (sum) mode only and an outer section operating in a .DELTA. (difference) mode only. Where required for broadband (i.e., for more than 1 octave), intermediate sections operating in .SIGMA. and .DELTA. modes are provided. The basic structure operates in the linear mode; for polarization diversity and circular polarization, a polarizer is placed in front of the horn, or a dielectric sheet is positioned within a coaxial waveguide section at an angle of 45.degree. as to the E field, or by feeding the coaxial waveguide with six or more number of probes.

Abstract: A magnetic bubble domain memory device employing a major row of contiguous regions for major loop bubble travel and a plurality of minor rows of contiguous regions for minor loop bubble travel, wherein the remainder of the magnetic domain-supporting layer in which the respective major and minor rows are provided includes ion-implanted regions. The edges of the ion-implanted regions adjacent the major and minor rows form rails to which magnetic bubble domains adhere and along which they may be propagated. The end region of each minor row is preferably positioned abreast a cusp between regions in the major row to effect zero degree phase transfer. Thin metallic loops are used for bubble generation and annihilation and, with respect to a Permalloy expansion detector, for replication. Metal masking improves the reliability of the boundaries between the non-implanted regions and the ion-implanted regions, especially with respect to the definition of the cusps between adjacent non-implanted regions in a row.

Abstract: This invention relates to enhancement of calculator versatility through connections provided in a calculator cradle leading to a printing mechanism therein when a calculator is nested in the cradle. In a more specific aspect, the invention relates to the communication between a calculator and a printer module which nests the calculator and responds to instructions and data flow from the calculator to print selected calculator information.

Abstract: A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for a 1 mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer.

Abstract: A display device in which a thin layer of a lyotropic nematic mesomorphic composition is utilized to diffuse light from a source toward an observer by applying a suitable voltage, for example, 20 volts for a one mil layer. One form of the device transmits light through the layer. A second form of the device uses light diffused and reflected to the observer.

Abstract: A universal adapter is mounted, in either of two directions, by way of a pair of pedestals disposed at its extremities to a planar surface, usually a heat sink. It has a cavity, formed at its upper surface and another at its lower surface between the pedestals each for receiving one of various types of power transistors and thyristors. A plurality of lead receiving apertures communicate between the lower and upper surface of the adapter to permit passage of the different configurations of leads from the various power transistors and thyristors. Electrical contacts for connection to exterior circuitry are affixed to the upper surface for some of the various types and to the lower surface for others of the various type. In either case, the contacts are positioned adjacent selected ones of the lead apertures through which the power transistor or thyristor leads are threaded and to which the electrical contacts are connected.

Abstract: A dual injector, floating-gate MOS non-volatile semiconductor memory device (DIFMOS) has been fabricated, using process specifications and design rules of the same general character previously developed for single-level metal gate CMOS devices. An electron injector junction (p+/n) is avalanched to "write" a charge on the floating gate, and a hole injector junction (n+/p-) is avalanched to "erase" the charge. An MOS sensing transistor, whose gate is an extension of the floating gate, "reads" the presence or absence of charge on the floating gate. In a preferred embodiment, the hole injection means includes an MOS "bootstrap" capacitor for coupling a voltage bias to the floating gate.

Abstract: A computing system includes a central processor unit (CPU) in combination with external memory units. The CPU includes an arithmetic logic (ALU), an instruction register, a random access memory, and a control system for interconnecting the functional elements of the CPU via sequential use of a common parallel buss, enabling the CPU to be defined on a single chip. The ALU is capable of performing eight separate arithmetic and logic functions utilizing common logic gates.

Abstract: Processes for manufacturing two-phase charge coupled devices (CCDs) having marginally overlapping phase electrodes and utilizing a single insulating material. Offset self-alignment techniques are used to achieve accurate location of ion implanted potential well or potential barrier regions to achieve the required asymmetry of potential wells (or threshold voltages) in each gate region of the CCD with small bit or charge storage element sizes leading to structures having a high packing density. Fabrication of surface and buried channel structures is described.

Abstract: A read-only memory, comprising a decoder and a storage memory, wherein the decoder matrix and the storage memory matrix each comprises complementary metal oxide semiconductor transistors. Each column of the decoder matrix and each column of the storage memory matrix is connected to a single load or precharge transistor.

Abstract: Disclosed is a radiation emitting diode in which a first layer of N-type GaAs and a second layer of N-type GaAlAs are formed on an N-type GaAs substrate. A localized zinc diffused region extends through the second layer and partially into the first layer to form a buried junction. Because of the higher bandgap energy of GaAlAs than of GaAs, the current density in the GaAlAs portion of the p-n junction is greatly reduced compared to that in the GaAs portion and the non-radiative surface components of current are greatly reduced. This results in a buried junction structure in which the radiation emitting region is removed from the surface. The buried junction structure provides devices having improved linearity of the radiant output power versus current characteristics and reduced degradation of radiant output power at constant current with time.

Abstract: The disclosure relates to patterning of platinum effectively and then removing the mask from the platinum without attacking the chromium metal beneath the platinum. If tantalum is used on top, which metal can be patterned with CF.sub.4, the tantalum can be patterned and the platinum can then be patterned quite readily and the tantalum can then be removed with the CF.sub.4 again and then the gold can be plated up onto the platinum patterns and the chromium can then be etched out using conventional chromium etch which will not attack any of the other metals.This solves the problem of high yield patterning with a metal mask and process for patterning and removal of that metal mask that is compatible with the chromium-platinum metal system. The advantage of the chromium-platinum system over the titanium-platinum system is the resistance of the chromium to silicon etch. Therefore, the principal application of this invention would be in the fabrication of mesa devices.

Abstract: An analog computer for controlling the ignition system of an internal combustion engine. A continuous signal is synthesized corresponding to the ignition advance angle as a function of the engine speed of rotation and of air intake pressure. This signal is synthesized in accordance with a characteristic for the particular engine concerned. The ignition advance signal is used to control commencement of a power supply pulse to the ignition system, with respect to a reference time signal, as a function of the instantaneous speed of rotation of the engine. Preferably the duration of the power supply pulse is maintained constant regardless of engine rotation speed and ignition advance angle. The circuits described for fulfilling these functions are designed for realization as bipolar integrated circuits.

Abstract: Disclosed is an improved air gun construction which lends itself to use with a plurality or array of similarly improved air guns which enables easy synchronization and timing of such array of air guns relative to one another. In the preferred embodiment, the air gun comprises a shuttle having magnetic properties and an electrical coil in proximity to said shuttle. When the air gun is actuated and the shuttle is accelerated, a voltage is induced in the coil by the flux lines from the magnetized shuttle moving through the turns of the coil. Electrical circuit means associated with each gun senses when a predetermined voltage is induced in the coil and generates a timing signal for each air gun. Additional electrical circuit means phases each of the timing signals from the air guns to occur at a predetermined time to thereby insure firing each of the air guns accurately.