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发帖时间:2021-06-15 01:26:04

Labonte said Teradyne's new Probe-One Memory Test system will now handle devices with array speeds up to 250 MHz.

Medis said a proprietary additive provides the key to the fuel cell reaction. This so-called X-additive,” an electrolyte, is contained in a thumbnail-sized cartridge that also includes water and ethanol. The cartridge fits in the fuel cell, which is about the size of a cell phone battery.

Medis said the X-additive” allows engineers to scrap proton exchange membranes, typically used in large hydrogen-based fuel cells. Proton exchange membranes, or PEMs, are considered too bulky and costly for the smallest fuel cell applications, and they can be damaged by high concentrations of methanol or ethanol. Our people recognized that you can't make a small fuel cell with a PEM,” Lifton said. So they invented the proprietary liquid electrolyte.”

0192890028_Datasheet PDF

The electrolyte enables ethanol or methanol to be converted directly to electricity, eliminating the need for hydrogen and PEMs. That allows higher concentrations of methanol or ethanol, up to 30 percent. The technique is so effective that company engineers were said to have effectively run the fuel cell on vodka.

Medis executives said the new technology offers energy densities an order of magnitude higher” than anything available on the fuel cell market right now. The company said it has demonstrated energy densities of 150 W-hr/kg and expects that figure to climb to 450 W-hr/kg by the end of next year. In contrast, the lithium-ion batteries being used in today's cell phones have a theoretical energy density of 150 W-hr/kg, they said.

The announcement surprised some experts, many of whom expected direct ethanol conversion technology to be limited to smaller electronic devices, such as PDAs and cell phones, but not anything as large as a laptop computer.

0192890028_Datasheet PDF

Scaling up?

Usually, you take a power performance hit when you use alcohols and methanols, but you gain the ability to package it in a tight space,” said Bob Hockaday, chief fuel cell scientist for Manhattan Scientifics Inc. (Los Alamos, N.M.), a Medis competitor. But if they can efficiently do this for smaller devices, then there's no reason they can't take it up to laptops and even larger systems, such as automobiles and power plants.”

0192890028_Datasheet PDF

Medis is not expected to be alone in its effort to develop direct-conversion liquid fuel cells. Similar efforts are being undertaken by scientists at Los Alamos National Laboratory, Motorola Inc. and Manhattan Scientifics. Los Alamos and Motorola recently co-announced development of fuel-cell-on-a-chip technology, which they expect to see in devices like PDAs, cameras and electronic games.

But Medis is thought to be the first to propose OEM products and pricing. The company said it plans to manufacture its fuel cells for about $9 each and sell them to OEMs for about $15. The thumbnail-sized replacement cartridges, which could be popped into the fuel cell in seconds, would sell for about a dollar apiece.

Sony and NEC have broken with the past to sell plants in Japan and contract to buy back production. Both are moving cautiously, however, before selling off any more factories in their homeland.

NEC, for example, is considering an EMS partner to make 2.5G and 3G advanced cellular handsets for overseas customers, a spokeswoman said last week. But the company will continue to make next-generation handsets in Japan for the home market, she added.

SAN JOSE — Tired of taking a backseat to its rivals, Canon Inc. today threw down the gauntlet in the lithography market. The Tokyo-based company believes it can surpass rival ASM Lithography in scanner shipments this year, and it is aiming to overtake crosstown rival Nikon Corp. as the world's largest supplier of wafer-fab exposure tools by 2005.

In a bold new five-year plan outlined by the company today, Canon promised to reach its lofty goals by boosting R&D investments and doubling its overall production capacity in lithography gear. The company is also pushing aggressively ahead in developing its own, advanced optics for a new class of tools.

The company is now implementing a new customer-driven strategy, said Fujio Mitarai, president and chief executive officer of Canon Inc. in Japan. Our strategy is to work even more closely with our customers and to continue to invest in research and development of new tools and technologies, despite the recent downturn,” Mitarai said.

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