Electronics & Computers

Procedure to Determine and Correct for Transmission Line Resistances for Direct-Current, On-Wafer Measurements

Resistances of tenths of ohms to several ohms in transmission lines have been measured in laboratory systems from the power supply to the device under test (DUT). High-current semiconductor devices may draw currents of several amps. In cases such as these, the voltage drop in the transmission lines may rise up to several volts. In order to properly characterize the DUT, the losses in the transmission line and the voltage drop across the line must be measured and accounted for. A procedure for measuring the transmission line resistances is described. Once these values are known, it is necessary to apply a transform to the raw measured data in order to determine the actual voltages on the device of interest. A simple MATLAB code for determining the DUT current and voltage behavior is presented when the raw IV data and the transmission line resistances are known.

Posted in: Briefs, Electronics & Computers, CAD / CAM / CAE, Measurements, Wiring, Semiconductors
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Channel Field Effect Transistors

Narrow bandgap semiconductors offer high carrier mobilities and low contact resistances, while wide bandgap semiconductors offer high breakdown voltages. A series of heterojunction transistors has been investigated and proved to be effective for improving both speed and power output. These devices include double heterostructure InP/InGaAs/InP bipolar transistors and composite-channel InAlAs/InGaAs/lnP/InAlAs high-electron-mobility transistors (HEMTs), which have taken full advantage of the matched lattice constant (or pseudomorphic growth).

Posted in: Briefs, Electronics & Computers, Architecture, Transistors, Semiconductors, Performance tests
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Self-Aware Computing

This project performed an initial exploration of a new concept for computer system design called Self-Aware Computing. A self-aware computer leverages a variety of hardware and software techniques to automatically adapt and optimize its behavior according to a set of high-level goals and its current environment. The heart of a complete self-aware system is a new “organic” operating system (OOS). The OOS acts as the ringleader, monitoring applications and making adjustments to hardware and software to increase performance, efficiency, and reliability automatically.

Posted in: Briefs, Electronics & Computers, Artificial intelligence, Computer software / hardware, Product development, Research and development
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12-Volt System with Mini-ITX Motherboard

ITOX (East Brunswick, NJ) has partnered with Systium® Technologies to introduce the Model 132 “mini” series 12-volt system utilizing the ITOX NP101-D16C Mini-ITX motherboard. The Systium Model 132 “mini” series system platform is designed for cost-sensitive applied computing and x86 embedded systems applications requiring high-quality, long-life modular computing solutions. This is particularly applicable to medical electronics, industrial control, security and surveillance, telecommunications, ATM/POS, digital signage, gaming, and kiosk systems fields. The motherboard utilizes the 45nm 1.6 GHz Intel® AtomTM N270 processor with Intel 945GSE Express chipset and ICH7M I/O controller hub. The platform exhibits a thermal design power of less than 15 watts, delivering higher performance-per-watt than previous platforms. A single 12 VDC power input also reduces overall system configuration and operating costs.

Posted in: Products, Products, Electronics & Computers
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DB9 Adapter

Sealevel (Liberty, SC) has developed a compact, rugged DB9F-to-5 screw terminal block adapter that allows users to connect their field wiring to DB9 connectors on USB Serial adapters, Ethernet Serial servers, and other Sealevel RS-485 products with a DB9M connector. It is RoHS compliant, works with 2- and 4-wire RS-485 networks, and can be secured to the serial port with thumbscrews to prevent accidental disconnection. The screw terminals accept 16-28 AWG gauge wiring.

Posted in: Products, Products, Electronics & Computers
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Embedded Virtualization Manager

TenAsys® Corporation (Beaverton, OR) is now shipping eVMTM for Windows®, an embedded virtualization manager software product that enables different real-time operating systems (RTOSes) to run alongside Windows on the same multi-core processor platform. Using eVM, applications that have been developed for standalone RTOSes such as QNX®, VxWorks®, and Windows CE, can be run on multi-core Windows platforms with full native performance. eVM utilizes hardware-assisted features built into Intel® processors to allocate hardware resources and ensure that time-critical I/O processes are not interrupted.

Posted in: Products, Products, Board-Level Electronics, Electronics & Computers
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Rugged Waterproof Computer

SmallPC.com (Burlington, Ontario, Canada) has released its latest waterproof computer. The SC240ML is designed and tested for reliable operation in the most extreme wet, dirty, and dusty environments, hot or cold. The SC240ML’s rugged aluminum chassis uses a unique heat pipe

assembly along with a set of specialized I/O connectors and cables to provide a high performance computer that is sealed to IP67/NEMA 6 standards. The operating temperature range

is -20°C to +60°C.

Posted in: Products, Products, Electronics & Computers
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Ternary Content Addressable Memory

Renesas Technology America (San Jose, CA) now offers the TCAM (Ternary Content Addressable Memory) Series of memory products to enable high-speed packet processing for networking equipment such as routers and switches. The first product in the series is the R8A20410BG TCAM, which has a capacity of 20 Mbits and delivers high-speed search performance of up to 360 MSPS (mega-searches per second)/Table. TCAM memory cells can store three data states: 0, 1, and X (“Don’t Care”). It is suitable for applications such as networking equipment because it achieves deterministic, high-speed searches by using simultaneous parallel operation to compare data strings input from an external device with data strings stored in the memory and outputting the matches.

Posted in: Products, Products, Electronics & Computers
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LPDDR2 Compliance and Protocol Test Tools

Agilent Technologies Inc. (Santa Clara, CA) has introduced a new comprehensive low-power double data rate 2 (LPDDR2) compliance and protocol test application package and industry-first LPDDR2 ball-grid array (BGA) probes. The Agilent N5413B LPDDR2 test application, which runs on Agilent Infiniium 9000 Series oscilloscopes, provides LPDDR2 physical-layer compliance measurements. The Agilent B4623A LPDDR2 bus decoder and the B4622A DDR protocol compliance tool, which run on the Agilent 16900 Series logic analyzers, provide debug and protocol compliance measurements.

Posted in: Products, Products, Electronics & Computers
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Single-Chip OTN Platform

Zarlink Semiconductor (Ottawa, Canada) has introduced ClockCenter, a platform for high-speed optical transport network (OTN) and communications equipment. ClockCenter synchronous products synchronize “any rate, any port, all the time,” meaning the single-chip solution accepts and generates any frequency (1 kHz to 720 MHz) required to support all communication services delivered over optical and Ethernet networks. The ClockCenter free run products are suitable for designing equipment for a range of applications that have traditionally relied on multiple oscillators, logic converters, and fan outs to time processors, memory chips, PHY chips, and more. The free run clock products allow equipment manufacturers to replace multiple external components with an integrated single-chip device.

Posted in: Products, Products, Electronics & Computers
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