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来源:LM317 Electronics Components编辑:Leopard Imaging Inc.时间:2021-06-14 05:12:37

L'objectif du gouvernement est de former 300 étudiants par an, par université et par niveau de maîtrise et de doctorat.

Samsung plans to shift its CMOS sensors to a 0.13-micron process next year, which will enable it to offer roughly 2-Mpixel and then 3-Mpixel sensors.

Portland, Ore. – Sandia National Laboratories is reporting new levels of wavelength/power output for deep-ultraviolet LEDs, which are considered critical to future semiconductors, biosensors and communications.

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Two deep-UV semiconductor LEDs registered output power of 1.3 and 0.4 milliwatts at wavelengths of 290 nanometers and 275 nm, respectively. Both were described as record-setting marks.

You need certain power levels to achieve the sensitivity necessary for bioagent detection and optical communications,” said Bob Biefeld, manager of Sandia's Chemical Processing Science Department. Everybody is competing to make high-power UV LEDs like ours. But even though we have broken the world's record, we are not standing still. We are pushing for even higher powers and to make even better materials. We plan to investigate all the various aspects of the materials science of growing these devices.” Also key to the project were researchers Jerry Simmons, Mary Crawford, Andy Allerman and Art Fischer.

From decontamination to white-light generation, semiconductor-based ultraviolet (UV) light sources will have many applications, including an important role in America's security,” said Jerry Simmons, manager of the Semiconductor Material and Device Science Department at the laboratories.

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For instance, he said, to detect weaponized anthrax instead of naturally occurring organisms in the environment, a UV source needs to focus on the sample to excite fluorescence from special tagging. With LEDs as the UV source, the detectors can now become disposable and small enough to be worn as tags.

Non-line-of-sight communications gear for the military can also use UV LEDs, to bounce short-wavelength communication bursts off an aerosol so that UV transceivers can communicate with zero probability of interception and near-zero probability of detection.

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Also, the conventional fluorescent bulb has a UV source inside and a phosphor coating that converts that to longer visible wavelengths. UV LEDs can be similarly outfitted with phosphor or more-modern coatings to create solid-state light bulbs. Similar benefits of miniaturization can be reaped by water and air purifiers that switch to UV LED light sources, as well as by polymer-curing and chemical-processing equipment.

Visible light spans from extreme red (infrared above 700 nm) to the extreme blue (UV below 400 nm). Deep UV is even shorter than UV-less than 300 nm. Traditionally, high-power and deep UV have not mixed, but Sandia has managed it through a novel mix of technologies.

The Japanese chipmaker said it plans to have CSMC produce all of its 8-bit MCUs, which are largely used in home appliances, such as refrigerators and air conditioners. CSMC will begin delivering units next spring.

Fujitsu said it will continue to make its 16- and 32-bit microcontrollers in its fabs in Japan.

CSMC in August signed an agreement with Chartered Semiconductor Manufacturing to acquire the 6-inch production equipment and technology from the Singapore foundry's Fab 1 and install the gear in the CSMC's Wuxi fab. At the time CSMC said the new line would start production in April, 2004 and boost the Wuxi fab production from 20,000 wafers a month to more than 45,000 wafers monthly by mid-2005.

BRUSSELS, Belgium — Worldwide semiconductor sales exceeded expectations in October, rising 7% from the previous month to $15.43 billion, according to the World Semiconductor Trade Statistics organization.

The European Electronic Component Manufacturers Association (EECA) put out the numbers on Friday.

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