Keyword: Semiconductors

Briefs: Semiconductors & ICs

A collective rattling effect in a type of crystalline semiconductor was discovered to block most heat transfer while preserving high electrical conductivity — a rare pairing...

Briefs: Materials

Silicon has several qualities that have led it to become the bedrock of electronics. One is that it features a very good “native” insulator — silicon dioxide, or...

Briefs: Electronics & Computers

Printable electronics — flexible circuitry that is deposited on some type of plastic substrate — has been a major area of research for decades. But the ability to print the substrate...

Articles: Semiconductors & ICs
Integrated Multi-Color Light Emitting Device Made with Hybrid Crystal Structure Sang Choi,
NASA Langley Research Center;
Yeonjoon Park,
National Institute of...
Briefs: Photonics/Optics

The scanning tunneling microscope (STM) has become one of the most powerful tools used in studying the surface structure of electrically conducting solid-state materials at an...

Articles: Materials

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Medical

NASA’s Glenn Research Center has developed and patented the Compact Full-Field Ion Detector System (CFIDS), a radiation particle detection system that provides information on the kinetic...

Briefs: Propulsion
Magnetically Conformed, Variable-Area Discharge Chamber for Hall Thruster, and Method

NASA's Jet Propulsion Laboratory has developed a Hall thruster with a variable-area discharge chamber that improves the performance and lifetime of the thruster. Conventional Hall thrusters have poor ionization efficiency, which limits the thrust-to-power ratio...

Briefs: Photonics/Optics
Arrayed Micro-Ring Spectrometer System and Method of Use

NASA Langley Research Center has developed a novel spectral analysis system that provides rapid multispectral analysis and imaging in a miniaturized system design. Typical spectrometers make use of linear gratings with linear slits or charge-coupled device (CCD) arrays to separate and...

Articles: Propulsion

Couplings are a critical part of system performance in high-tech applications, yet they are often one of the last components to be specified. Selecting the proper coupling ensures the equipment will meet...

Briefs: Electronics & Computers
Larger-Area Integrated Electrical Metallization Dielectric Structures with Stress-Managed Unit Cells for Extreme- Environment Semiconductor Electronics Chips

The use of patterned multiple layers of thin films of metal and dielectric to form integrated circuit interconnections of transistors and/or form on-chip circuit capacitors is well known to...

Briefs: Sensors/Data Acquisition
Biomarker Sensor System and Method for Multi-Color Imaging and Processing of Single-Molecule Life Signatures

NASA’s Jet Propulsion Laboratory offers a method to manufacture biomarker sensor arrays with nanoscale resolution and active regions on the order of 1 micron by applying nanolithographic direct-write techniques to the fabrication of...

Briefs: Electronics & Computers

NASA’s Glenn Research Center has developed nanoionic-based radio frequency (RF) switches for use in devices that rely on low-power RF transmissions, such as automotive systems, RFID...

Briefs: Electronics & Computers

NASA’s Langley Research Center has developed a method of using x-ray diffraction (XRD) to detect defects in cubic semiconductor...

Briefs: Test & Measurement
Hermetic Seal Leak Detection Apparatus with Variable Size Test Chamber

NASA’s Marshall Space Flight Center has developed a unique apparatus ideal for use in nondestructive testing (NDT) of hermetic seals of containers or instrumentation. The device is capable of detecting both large and small leaks and can be calibrated to characterize the...

Briefs: Materials
Control of Carbon Nanotube Density and Tower Height in an Array

Use of arrays of carbon nanotubes (CNTs) as an intermediary for transport of electrical particles (e.g., electrons) and/or transport of thermal energy from one body to another has grown. For example, a CNT array may be used for dissipation of thermal energy or accumulated electrical...

Briefs: Electronics & Computers
Nanotube-Based Device Cooling System

Carbon nanotubes (CNTs) are being studied for use in high-strength/lowweight composites and other applications. Recent research on thermal dissipation materials for high-power electronic devices is generating a lot of interest in various industries. Carbon nano tubes have attracted much attention due to their...

INSIDER: Electronics & Computers

Two-dimensional electronic devices could inch closer to their ultimate promise of low power, high efficiency and mechanical flexibility with a processing technique developed at the Department of...

Articles: Test & Measurement

The ongoing challenge for today’s semiconductor test engineers is to identify and create new test solutions that can offer significantly lower test costs as well as address the...

Briefs: Medical
Technique for Reversible Permeabilization of Live Cells for Intracellular Delivery of Quantum Dots

Nanomaterials are comparable in size to various biomolecules (1 to 100 nm), and have unique properties such as enhanced electrical conductivity, increased chemical reactivity, and novel optical properties that make them attractive candidates for...

Application Briefs: Aerospace
Apex SLR ICP etch system
Advanced Vacuum, a Plasma-Therm Co.
Saint Petersburg, FL
800-246-2592
www.plasmatherm.com

An Advanced Vacuum inductively...

Briefs: Electronics & Computers

This radiation-hardened, compact, low-power, quad 12-bit digital-to-analog converter (DAC) application specific integrated circuit (ASIC) incorporates science-driven features...

Briefs: Manufacturing & Prototyping
Uniformly Etched Lateral Gratings Applied to Pre-existing Ridge Waveguides

There is great difficulty in implementing lateral gratings in GaSb-based lasers. Commercially, single-frequency GaSb lasers have been fabricated using metal gratings deposited laterally to the ridge-waveguide (RWG) stripe. The disadvantage of this is that the laser...

Briefs: Photonics/Optics
Low-Excess-Noise, High-Gain Avalanche Photodiodes

Avalanche photodiodes (APDs) are widely used to sense and amplify optical signals into electric signals based on their high quantum efficiency of photon detection and desirable internal gain. The high internal gain associated with APDs, however, may also lead to increased levels of excess noise...

INSIDER: Electronics & Computers

The heat that builds up in the shuttling of current in electronics is an important obstacle to packing more computing power into ever-smaller devices; excess heat can cause them...

INSIDER: Electronics & Computers

As scientists continue to hunt for a material that will make it possible to pack more transistors on a chip, new research from McGill University and Université de Montréal adds to evidence that...

Briefs: Materials
Lightweight, Flexible, Energy-Manageable Polymer Nanocomposites

Solar energy has attracted keen attention because it is a unique, clean, and sustainable energy resource. It is also widely utilized as a power source in space exploration. A lightweight, durable, deployable, and highly efficient all polymer-based solar power panel was developed...

Briefs: Electronics & Computers

DC protection systems such as circuit breakers play a key enabling role for the DC power system in applications such as aviation, the power grid, and the like. Conventional...

INSIDER: Electronics & Computers

Portable electronics — typically made of non-renewable, non-biodegradable and potentially toxic materials — are discarded at an alarming rate in consumers' pursuit of the next best...