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Research & Technology News
Ultraviolet Laser Combines Steps in Wafer Doping
Jul 1, 1997 — SAN JOSE, Calif. -- An instrument that employs a laser doping process could combine the lithography and silicon doping steps in the manufacture of integrated circuits.The device, a deep-UV stepper using a technique that Ultratech Stepper Inc. calls projection gas immersion laser doping, would enable simple fabrication of shallow, low-resistance junctions in titanium silicon. Scientists promise that junctions made by this process will reduce power dissipation and increase operational speeds of...
US Strengthening Flat Panel Display Manufacturing Technology
Jul 1, 1997 — The United States Display Consortium, a group of flat panel display manufacturers and developers, has initiated 33 projects to bolster the US infrastructure and supply base.The consortium has committed $107 million to R&D projects over the past...
UV Imager Catches Comets Targeting Earth
Jul 1, 1997 — BALTIMORE -- Having a winning design for a satellite imaging device can have rewards beyond the recognition associated with winning a NASA contract. Just ask Iowa University's Louis A. Frank, who designed a UV/VIS imager to study the Earth's aurora,...
X-Ray Tool Aids Laser Design
Jul 1, 1997 — MURRAY HILL, N.J. -- Scientists at Bell Laboratories have developed a tool that uses x-ray technology to measure strain in small volumes of material for laser manufacturing and quality control applications.According to the company, the x-ray...
'Superlattice' Laser Achieves Record Power in the Mid-IR
Jun 1, 1997 — MURRAY HILL, N.J. -- Lucent Bell Laboratories researchers have reported measuring peak power of 750 mW from a pulsed 8-µm laser at liquid nitrogen temperatures.The device, a quantum cascade laser based on superlattice crystal structures,...
Air Force Lab Chills IR SensorsInternational Team Takes Mid-IR Laser Step
Jun 1, 1997 — Scientists have moved a step closer to achieving a tunable, mid-infrared semiconductor laser, demonstrating an intersubband stimulated emission.A team of researchers from the University of Illinois and the University of Paris conducted tests...
Conoscopy Measures with High Resolution
Jun 1, 1997 — JERUSALEM -- Manufacturers of electronic components and data storage equipment are among those who can benefit from the high (up to 0.04 µm) resolution of gauging instruments based on conoscopic interferometry.The technique exploits the...
Corning Completes Telescope Mirror Blank
Jun 1, 1997 — Corning Incorporated has delivered the second of two mirror blanks for the GEMINI project telescope, a multinational collaboration including the US, UK, Canada, Chile, Argentina and Brazil. The mirror blank measures more than 26 ft in diameter and...
Crystal Films Grow on 'Universal' Substrate
Jun 1, 1997 — Cornell University researchers are in the preliminary stages of demonstrating that crystals of any material can be grown on a substrate. If the technique proves successful, it could open the door for manufacturing a whole new class of...
Dutch Group Monitors Laser Deposition
Jun 1, 1997 — Pulsed laser deposition creates complex oxide thin films such as high-Tc superconductors, but it works only under high oxygen pressure (up to 100 Pa). Reflection high energy electron diffraction (RHEED) can monitor the growth of thin films, but only...
Integrated Circuit Uses 'Critters' to Detect Contamination
Jun 1, 1997 — OAK RIDGE, Tenn. -- What's half living, half machine and can sniff out pollutants and chemicals in a single whiff? The latest microsensor technology from the US Department of Energy's Oak Ridge National Laboratory (ORNL) combines living luminescent...
IR Instrument Vows Early Warnings of Volcanic Eruptions
Jun 1, 1997 — TEMPE, Ariz. -- Hollywood's recent fantastic images of fiery lava engulfing entire cities might be a slight exaggeration, but the danger of volcanoes to humans is all too real, especially to researchers seeking a closer look at what makes these...
Lab Produces Tunable Mid-IR Laser
Jun 1, 1997 — Researchers at Lucent Technologies' Bell Laboratories have produced a pulsed, single-mode laser tunable in the mid-infrared range. The group achieved peak optical powers up to 60 mW at 300 K with a tuning range of about 60 nm from 100 K to 2320...
New Cantilever Boosts SFM Resolution
Jun 1, 1997 — STANFORD, Calif. -- Stanford University researchers have combined an interferometric diffraction grating with light-reflecting scanning force microscope cantilevers in a way that could result in a tenfold increase in the resolution of commercially...
New Photoresist Shrinks Features
Jun 1, 1997 — SAN FRANCISCO -- Integrated circuit manufacturers are taking a very close look at a single-layer photoresist that scientists say will support component design smaller than 0.18 µm, with the promise of 0.13-µm design capability within a...
Photonics Solves the Wafer Temperature Problem
Jun 1, 1997 — SANTA CLARA, Calif. -- As a semiconductor wafer wends its way through the fabrication process it passes through several stages where thermal processing plays a key role.Conventional techniques require that manufacturers stop the process, remove the...
Polymer Connectors Challenge Costlier Rivals
Jun 1, 1997 — HARRISBURG, Pa. -- As the saying goes, you get what you pay for. But according to a new study, the fiber optics industry could be getting more than that.Researchers at AMP Inc., a manufacturer of electrical and electronic interconnection systems,...
Researchers Predict Multicolor LED World
Jun 1, 1997 — ROCHESTER, N.Y. -- Dreams of ultrathin displays for computer and television screens could become a reality, thanks to a plastic light-emitting diode that emits light in several colors.LEDs are everywhere; clock radios, microwave timers, dashboard...
Ring Monitors Homebound Patients
Jun 1, 1997 — CAMBRIDGE, Mass. -- It resembles a cross between a trinket in a gumball machine and a space-age gizmo seen on Star Trek. Despite its curious appearance, this newly developed photosensor ring performs a serious task: It monitors the pulse rate and...
Speedy Camera Finds Undersea Mines
Jun 1, 1997 — Scientists at Los Alamos National Laboratory have found a way to detect underwater mines over vast expanses of ocean by employing a camera system developed to image nuclear tests in the 1960s.A pulsed laser mounted with a charge-coupled device in an...
Supercooling Technology for Satellites
Jun 1, 1997 — The US Air Force and NASA have developed a supercooling technology for satellites that enhances the performance of onboard infrared sensors.Launched aboard the space shuttle Columbia in April, the cryogenic heat pipe is designed to lower internal...
Tiny Images Could Win Big
Jun 1, 1997 — Nikon Inc. is conducting its 23rd Annual Nikon International Small World Competition, honoring excellence in photography through a microscope.Each participant can submit up to three 35-mm transparencies of photos taken using a light microscope....
Zinc Oxide Holds Promise as LED Material
Jun 1, 1997 — In the quest to produce efficient and lasting blue light-emitting diodes, one material has been largely overlooked -- zinc oxide.Although ZnO has a room-temperature band gap of 3.37 eV and high exciton binding energy, scientists have focused more on...
Amplifier Promises To Improve Charge-Coupled Devices
May 1, 1997 — LOS ALAMOS, N.M. -- A charge-coupled device (CCD), the component that converts light into electronic signals in scientific and commercial imaging instruments, is only as good as its amplifier. A new amplifier developed at Los Alamos National...
Colorful Laser Aims at Inspection, Displays
May 1, 1997 — LOS ALAMOS, N.M. -- Laser displays and semiconductor inspection could be the future applications for a fiber-based solid-state laser that emits in the red, orange, green or blue.The discovery was, in large part, an accident. Timothy Gosnell and Ping...
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