Keyword: Integrated circuits

Briefs: Semiconductors & ICs
Compact, Miniature MMIC Receiver Modules for an MMIC Array Spectrograph

A single-pixel prototype of a W-band detector module with a digital backend was developed to serve as a building block for large focal-plane arrays of monolithic millimeter-wave integrated circuit (MMIC) detectors. The module uses low-noise amplifiers, diode-based mixers,...

Articles: Electronics & Computers

Designing a versatile data acquisition (DAQ) system begins by comparing features of the signal of interest to the capabilities of current state-of-the-art A/D converters. Specifically, signal...

Briefs: Electronics & Computers

A small, segmented microstrip patch antenna integrated with an X-band feedback oscillator on a high- permittivity substrate has been built and tested (see Figure 1). The oscillator antenna is powered by...

Briefs: Electronics & Computers

Some logic circuits have been built and demonstrated to work substantially as intended, all as part of a continuing effort to exploit the high degrees of design flexibility and functionality of...

Briefs: Physical Sciences
Improving the Visible and Infrared Contrast Ratio of Microshutter Arrays

Three device improvements have been developed that dramatically enhance the contrast ratio of microshutters. The goal of a microshutter is to allow as much light through as possible when the shutters are in the open configuration, and preventing any light from passing...

Briefs: Software
FPGA Boot Loader and Scrubber

A computer program loads configuration code into a Xilinx field-programmable gate array (FPGA), reads back and verifies that code, reloads the code if an error is detected, and monitors the performance of the FPGA for errors in the presence of radiation. The program consists mainly of a set of VHDL files (wherein...

Briefs: Electronics & Computers

Monolithic microwave integrated-circuit (MMIC) amplifiers of a type now being developed for operation at frequencies of hundreds of gigahertz contain InP high- electron-mobility...

Briefs: Semiconductors & ICs

Generic structures have been conceived for multiplexer blocks to be implemented in field-programmable gate arrays (FPGAs) based on four-gate field-effect transistors...

Briefs: Information Technology
Bio-Inspired Neural Model for Learning Dynamic Models

A neural-network mathematical model that, relative to prior such models, places greater emphasis on some of the temporal aspects of real neural physical processes, has been proposed as a basis for massively parallel, distributed algorithms that learn dynamic models of possibly complex...

Briefs: Semiconductors & ICs

Modules containing multiple monolithic microwave integrated-circuit (MMIC) chips have been built as prototypes of transmitting/receiving (T/R) modules for millimeter-wavelength radar systems, including...

Briefs: Electronics & Computers

A modulator circuit board has recently been developed to be used in conjunction with a vector modulator to generate any of a large number of modulations for bandwidth-efficient radio...

Briefs: Manufacturing & Prototyping

A two-step plasma process has been developed as a means of removing surface oxide layers from indium bumps used in flip-chip hybridization (bump bonding) of integrated circuits. This...

Articles: Photonics/Optics

More than 50 percent of Americans diagnosed with diabetes are at risk of developing diabetic retinopathy, a retinal disease that can lead to blindness. The condition is a result of...

Briefs: Manufacturing & Prototyping
Fabricating PFPE Membranes for Capillary Electrophoresis

A process has been developed for fabricating perfluoropolyether (PFPE) membranes that contain microscopic holes of precise sizes at precise locations. The membranes are to be incorporated into “laboratory-on-a-chip” microfluidic devices to be used in performing capillary...

Articles: Electronics & Computers

The proliferation of FPGAs into the embedded computing industry has opened up many new pathways for designers to design cost-effective systems that will withstand technology upgrades, changes in...

Briefs: Manufacturing & Prototyping

An alternative scheme has been conceived for packaging of silicon- based back-illuminated, back- side-thinned complementary metal oxide/semiconductor (CMOS) and charge-coupled-device...

Briefs: Electronics & Computers

A monolithic silicon-on-insulator (SOI) complementary metal oxide/ semiconductor (CMOS) image-detecting integrated circuit of the active-pixel-sensor type, now undergoing development, is...

Briefs: Electronics & Computers
In-Phase Power-Combined Frequency Tripler at 300 GHz

This design starts with commercial 85- to 115-GHz sources that are amplified to as much as 250 mW using power amplifiers developed for the Herschel Space Observatory. The frequency is then tripled using a novel waveguide GaAs Schottky diode frequency tripler. This planar diode produces 26 mW...

Articles: Motion Control

Single-turn encoders have long been used in industrial automation to gauge angular displacement in a broad range of applications, ranging from steering control on a mobile equipment...

Briefs: Electronics & Computers
SiC Optically Modulated Field-Effect Transistor

An optically modulated field-effect transistor (OFET) based on a silicon carbide junction field-effect transistor (JFET) is under study as, potentially, a prototype of devices that could be useful for detecting ultraviolet light. The SiC OFET is an experimental device that is one of several...

Briefs: Semiconductors & ICs

To increase the usefulness of monolithic millimeter-wave integrated circuit (MMIC) components at submillimeter-wave frequencies, a chip has been designed that...

Briefs: Electronics & Computers

A circuit that can function as a phase switch, frequency mixer, or frequency multiplier operates over a broad frequency range in the vicinity of 100 GHz. Among the most notable...

Briefs: Physical Sciences

Microleaks for inlets of mass spectrometers used to analyze atmospheric gases can be fabricated in silicon wafers by means of photolithography, etching, and other techniques that are...

Briefs: Electronics & Computers
SiC JFET Transistor Circuit Model for Extreme Temperature Range

A technique for simulating extreme-temperature operation of integrated circuits that incorporate silicon carbide (SiC) junction field-effect transistors (JFETs) has been developed. The technique involves modification of NGSPICE, which is an open-source version of the popular...

Briefs: Electronics & Computers
Replication of Space-Shuttle Computers in FPGAs and ASICs

A document discusses the replication of the functionality of the onboard space-shuttle general-purpose computers (GPCs) in field-programmable gate arrays (FPGAs) and application-specific integrated circuits (ASICs). The purpose of the replication effort is to enable utilization of proven...

Briefs: Semiconductors & ICs

Prototype logic gates made of n-channel junction field-effect transistors (JFETs) and epitaxial resistors have been demonstrated, with a view toward eventual implementation of...

Briefs: Electronics & Computers

Integrated circuits have been invented for managing the charging and discharging of such advanced miniature energy-storage devices as planar arrays of microscopic energy- storage...

Application Briefs: Sensors/Data Acquisition
SIDECAR ASIC microprocessor-controlled chip
Teledyne Imaging Sensors
Camarillo, CA
805-373-4545
www.teledyne-si.com

The electronics that will convert analog...

Briefs: Electronics & Computers

Electronic sensor systems for detecting and locating impacts of rapidly moving particles on spacecraft have been invented. Systems of this type could also be useful on Earth in settings in which the occurrence of...

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