Abstract: A precision vector network analyzer which is suitable for a wide range of applications including both laboratory and automated production measurements and testing is disclosed. New measurement capabilities, greater ease of use, and nearly complete automation are provided. Contributions include fully coordinated communications between subsystem modules; real time, two channel, precision vector measurements with complete, internal error correction; wide frequency capability from RF to millimeter bands; combined time and frequency domain analysis and display; measurements either in the swept or step frequency modes; and user definable test functions and calibration device sets.

Abstract: A heated transfer line for heating a small glass capillary tube is disclosed. The transfer line is small and removable yet highly efficient, capable of uniformly heating a glass capillary tube over a 5-inch length to more than 400.degree. C. with less than 30 watts of power. The power is applied to an electrically conductive heater tube, which encircles the glass capillary, via first and second current conductors attached to respective ends of the heater tube. The first and second current conductors are arranged in proximity to the heater tube and back along the heater tube to a common point without touching each other. Electrical insulation is disposed between the heater tube and the first and second current conductors to electrically isolate the heater tube from the current conductors. A cover of thermal insulation is disposed over the heater tube and the current conductors and is used to thermally isolate the heater tube. An outer tube is disposed around the thermal insulation as a cover.

Abstract: An apparatus for essentially eliminating variations in luminescence (i.e., inverse shadowing) in an electroluminescent (EL) display is disclosed. The pixels of an EL display are driven to their light emitting voltage with a signal having a rise time dv/dt at and above the pixel light emitting threshold voltage which is independent of the number of pixels ON in each display row. The result is that each ON pixel in the display exhibits substantially the same luminescence.

Abstract: A precision vector network analyzer which is suitable for a wide range of applications including both laboratory and automated production measurements and testing is disclosed. New measurement capabilities, greater ease of use, and nearly complete automation are provided. Contributions include fully corrdinated communications between subsystem modules; real time, two channel, precision vector measurements with complete, internal error correction; wide frequency capability from RF to millimeter bands; combined time and frequency domain analysis and display; measurements either in the swept or step frequency modes; and user definable test functions and calibration device sets.

Abstract: A precision vector network analyzer which is suitable for a wide range of applications including both laboratory and automated production measurements and testing is disclosed. New measurement capabilities, greater ease of use, and nearly complete automation are provided. Contributions include fully coordinated communications between subsystem modules; real time, two channel, precision vector measurements with complete, internal error correction; wide frequency capability from RF to millimeter bands; combined time and frequency domain analysis and display; measurements either in the swept or step frequency modes; and user definable test functions and calibration device sets.

Abstract: A precision vector network analyzer which is suitable for a wide range of applications including both laboratory and automated production measurements and testing is disclosed. New measurement capabilities, greater ease of use, and nearly complete automation are provided. Contributions include fully coordinated communications between subsystem modules; real time, two channel, precision vector measurements with complete, internal error correction; wide frequency capability from RF to millimeter bands; combined time and frequency domain analysis and display; measurements either in the swept or step frequency modes; and user definable test functions and calibration device sets.

Abstract: A relatively small set of cells is shown for constructing a conditional carry adder for two N-digit operands. The structure and organization of the cells is adaptable for constructing any length adder with both high absolute performance and low circuit complexity in LSI by either bipolar or MOS techniques. In addition, the technique is shown adapted for use as either an incrementor or as a priority encoder.

Abstract: A particle-free dockable interface is disclosed for linking together two spaces each enclosing a clean air environment. The interface is composed of interlocking doors on each space which fit together to trap particles which have accumulated from the dirty ambient environment on the outer surfaces of the doors.

Abstract: A unique inverse processed film resistance heater structure is disclosed. A conventional passivation wear layer is deposited directly on a first substrate, followed by the deposition and patterning of resistive and conductive layers, and covered by an isolation layer and a thick support layer. The thick support layer is then bonded to a second substrate and the first substrate is removed so that a uniform, flat passivation layer is exposed. The result is a film resistor which has a reduced failure rate as compared to the prior art because it is covered by a passivation wear layer with fewer pin-holes and reduced stress.

Abstract: A layered structure for use in an X-ray membrane (pellicle) mask or a vacuum window is provided in which an intermediate amorphous layer such as silicon dioxide is grown on a silicon substrate which provides a stress relief medium and surface properties which enhance and improve subsequent process layers by breaking the epitaxial nature of these later deposited layers. Upon subsequent deposition of an inorganic overcoat, such as SiC, on the intermediate amorphous layer, the overcoat produces a nearly defect-free layer with a substantially reduced stress of suitable quality for X-ray lithography mask fabrication. Furthermore, additional alternating layers of a silicon carbide film and an intermediate inorganic layer, such as silicon nitride, can be deposited to obtain an even smoother silicon carbide surface and stronger structure.

Abstract: A high pressure meter pump system with improved accuracy is provided by subdividing a large meter pump capacity into metered subvolume charges which are incrementally delivered to a high pressure slave pump.This enables the pump sytem to achieve improved accuracy independent of flow rate and therefore increasing the range of flow rates available with acceptable accuracy. Additionally, the pump system self-primes independently of flow rate and therefore does not require degassing of the solvent being pumped.

Abstract: A new phenomenon in integrated circuit etch processing is presented, explained and utilized to permit better removal of layers overlying integrated circuit structures, and if desired, the formation of conductive layers on such structures by a less complicated and lower temperature process than has been possible by conventional techniques.

Abstract: Provided is a design for a terminated R.F./microwave Wheatstone bridge and a precision termination which can be used therewith.

Abstract: A high-pressure viscous damper is proposed, in particular for use in liquid chromatographs, in which two chambers are separated by an elastic partition, and the one chamber receives a fluid to be damped and the other chamber holds a damping fluid. In the chamber holding the damping fluid an insert is provided within the fluid with a selected volume and temperature expansion coefficient so that by the combination of the insert and damping fluid and the volume and wall material of the second chamber a volume compensation is achieved.

Abstract: A computing system for detecting movement of a user's touch on a touchscreen and to operate an intelligent programmable device is provided. The system includes a touchscreen for detecting information of an initial touch by a user on a display surface, a change of touch on the display surface, and disengagement of the user's touch from the display surface. The detected touch information is then used to determine system operations in response to the touch information.

Abstract: A novel ionic surface preparation for nozzles used in spraying fluid droplets such as used in ink jet printers is disclosed. In conjunction with an oppositely charged ionic anti-wetting agent dissolved in the sprayed fluid, the new surface preparation reliably reduces the wetting of the nozzle surfaces, thereby facilitating the production of more uniform and predictable droplets.

Abstract: An easily removable video display bezel for facilitating the easy and quick removal of the bezel from the display screen. The bezel, when attached, fits tightly around the display screen and serves to frame the image on the screen.

Abstract: An improved electrochemical cell and detector which is especially suited for analysis of rapidly changing flowing streams such as found in high performance liquid chromatography is disclosed. A uniquely designed jet made of microbore drawn capillary tubing permits the construction of a cell for very low flow rates that still retains true wall-jet hydrodynamics. The invention prevents changes in cell response in time by periodically cleaning a working electrode in a novel way. Cleaning and detection are both accomplished on a time scale much shorter than the fastest liquid chromatograph peaks by means of a unique three electrode cell design utilizing a small diameter, low capacitance, metal working electrode situated close to a reference electrode.

Abstract: A novel ionic surface preparation for nozzles used in spraying fluid droplets such as used in ink jet printers is disclosed. In conjunction with an oppositely charged ionic anti-wetting agent dissolved in the sprayed fluid, the new surface preparation reliably reduces the wetting of the nozzle surfaces, thereby facilitating the production of more uniform and predictable droplets.