March 29, 2024

Intel Increases Transistor Speed by Building Upward

Intel intends to break with the basic design of the so-called planar transistor that has remained a constant in the chip industry since 1959 when Robert Noyce, Intel’s co-founder, and Jack Kilby of Texas Instruments independently invented the first integrated circuits.

Since the advent of the microchip, the transistor, which is the electronic switch that is the basic building block of the information age, has been manufactured in just two dimensions.

But now, when the space between the billions of the tiny electronic switches on the flat surface of a computer chip is measured in the width of just dozens of atoms, designers are increasingly turning to the third dimension to find more room.

The company has already begun making its microprocessors using this new 3-D transistor design called a FINFET (for fin field-effect transistor), which is based around a remarkably small pillar, or fin, of silicon that rises above the surface of the chip. Intel, based in Santa Clara, Calif., plans to enter general production based on the new technology some time later this year.

Although the company will not give technical details about its new process in its Wednesday announcement, it said that it expected to be able to make chips that run as much as 37 percent faster in low-voltage applications and it would be able to cut power consumption as much as 50 percent.

Intel currently uses a photolithographic process to make a chip, in which the smallest feature on the chip is just 32 nanometers, a level of microscopic manufacture that was reached in 2009. (By comparison a human red blood cell is 7,500 nanometers in width and a strand of DNA is 2.5 nanometers.) “Intel is on track for 22-nanometer manufacturing later this year,” said Mark T. Bohr, an Intel senior fellow and the scientist who has overseen the effort to develop the next generation of smaller transistors.

The company’s engineers said that they now feel confident that they will be able to solve the challenges of making chips through at least the 10-nanometer generation, which is likely to happen in 2015.

The timing of the announcement Wednesday is significant, Dr. Bohr said, because it is evidence that the world’s largest chip maker is not slipping from the pace of doubling the number of transistors that can be etched onto a sliver of silicon every two years, known as Moore’s Law. Although not a law of physics, the 1965 observation by Intel co-founder Gordon Moore has defined the speed of innovation for much of the world’s economy. It has also set the computing industry apart from other types of manufacturing because it has continued to improve at an accelerating rate, offering greater computing power and lower cost at regular intervals.

However, despite its promise and the company’s bold claims, Intel’s 3-D transistor is still a controversial technology within the chip industry. Indeed, a number of the company’s competitors believe that Intel is taking a multibillion-dollar gamble on an unproven technology that could be a disastrous decision.

There has been industry speculation that FINFET technology will give Intel a clear speed advantage, but possibly less control over power consumption than alternative approaches.

By opting for a technology that emphasizes speed over low power, there is still the possibility that Intel could win the technology battle and yet lose the more important battle in the marketplace. The scope of Intel’s gamble is underscored by the fact that while the company dominates in the markets for data center computers, desktops and laptops, it has largely been locked out of the tablet and smartphone markets which are growing far more quickly than the traditional PC industry. Those devices use ultra-low-powered chips in order to conserve battery power and reduce overheating. Apple, for example, uses Intel’s microprocessors for its desktops and laptops, but for the iPhone and iPad it has chosen to use a rival low-power design built by others that Apple originally helped pioneer in the late 1980s.

Industry executives and analysts have said that Intel is likely to have a full generation lead over its rivals in the shift to 3-D transistors. For example, T.S.M.C., the Taiwan-based chip maker, has said that it does not plan to deploy FINFET transistor technology for another two years.

Other companies, like ST Microelectronics, are wagering that an alternative technology based on placing a remarkably thin insulating layer below traditional transistors will chart a safer course toward the next generation of chip manufacturing. They believe that the insulation approach will excel in low-power applications and that could be a crucial advantage in consumer-oriented markets where the vast majority of popular products are both handheld and battery-powered.

“Silicon-on-insulator could be a win in terms of power efficiency,” said David Lammers, the editor in chief of Semiconductor Manufacturing Design Community, a Web site. “From what I am hearing from the S.O.I. camp, there is a consensus and concession that FINFETs are faster. That’s the way you want to go for leading edge performance.“ In a factory tour here last week, Intel used a scanning electronic microscope to display a computer chip made using the new 22-nanometer manufacturing process . Viewed at a magnification of more than 100,000 times, the silicon fins are clearly visible as a series of walls projected above a flat surface. It is possible to make transistors out of one or a number of the tiny fins to build switches that have different characteristics ranging from faster switching speeds to extremely low power. Stepping back and looking at the chip under lower power magnification, it is possible to see the wiring design that appears much like a street map displaying millions of intersections.

Despite the impressive display, Intel’s executives acknowledge the challenge the company is facing in trying to catch up in the new consumer markets that so far have eluded it.

“The ecosystem right now is not aligned in our favor,” said Andy D. Bryant, Intel’s chief administrative officer who now runs the company’s technology and manufacturing group. “It has to be good enough for the ecosystem to take notice and say, ‘we better pay attention to those guys.’ ”

Article source: http://www.nytimes.com/2011/05/05/science/05chip.html?partner=rss&emc=rss

A Japanese Plant Struggles to Produce a Critical Auto Part

No wonder the magnitude 9.0 earthquake that knocked out one of the world’s leading automotive computer-chip factories struck such a severe and lasting blow to the global auto industry.

Since the March 11 earthquake, the lack of chips from this plant is a big reason automobile production has slowed to half its normal rate in Japan, and is at a crawl in some factories in the United States and elsewhere.

And plant officials here on Wednesday acknowledged that this critical link in the supply chain would be restored only gradually, despite the round-the-clock efforts of an army of workers to repair the cracked walls, collapsed ceilings and out-of-kilter equipment caused by the quake.

The factory here, 70 miles northeast of Tokyo, belongs to Renesas Electronics, which supplies about 40 percent of the world market for those crucial chips, known as automobile microcontrollers.

If it were the PC industry, customers by now might have found alternative suppliers for their standardized chips. But because of the way the automobile industry has evolved in the digital era, microcontrollers are usually customized for each car model.

That makes it difficult for automakers to quickly switch suppliers. And it has left manufacturers desperate for Renesas to resume production as soon as possible.

“We have an important role and responsibility,” Tetsuya Tsurumaru, senior vice president in charge of manufacturing at Renesas, said on Wednesday, during the first plant tour for reporters since the disaster. “We are aware of this and are doing our best to restore the supply chain as soon as possible.”

Mr. Tsurumaru said the company hoped to restart microcontroller production on June 15, about a month earlier than previously estimated. But output will initially be only 10 percent of capacity, he said, declining to predict when Renesas would resume full production.

To help meet demand, the company is shifting some production from the factory here to another Renesas factory in Japan not damaged by the quake. It is also farming out some manufacturing of automobile controllers to GlobalFoundries, a contract manufacturer in Singapore that has produced microcontrollers in the past. But shortages are expected to persist for months.

“Let’s show Renesas’s inner strength and unite our hearts to restart in June,” read banners hung from the buildings here. “Customers from all over the world are waiting.”

Thus exhorted, workers have repaired the factory’s ceiling, as well as a crucial air filtering system intended to keep out dust particles that can ruin the microscopic circuitry of the chips.

Test production has begun. Workers in white suits with facemasks and hoods worked in the clean room to repair and realign sophisticated machines that must be precise to billionths of a meter. But red lights next to most pieces of equipment indicated they were not in operation.

To be sure, Renesas is not the only parts supplier knocked out by the earthquake and, in some cases, by the tsunami that followed.

Toyota said recently that it faced shortages of 150 critical parts, not only electronic controllers but also rubber parts and paint additives. The company, Japan’s biggest automobile manufacturer, said it would not be able to resume full production until the end of this year.

Still, as a sign of how crucial this plant is, Japanese automakers, auto parts companies and other customers have sent as many as 2,500 workers to help repair the factory, called the Naka plant.

Automobile companies are not the only ones dependent on Renesas. For instance, Ricoh, maker of copiers and office equipment, gets some customized chips from Renesas. Ricoh executives say the Naka factory is their biggest concern among parts suppliers.

But microcontrollers, which are called mi-con in Japan (pronounced my-kone), are extremely important in automobiles because they act as the brains of electronic control systems.

Article source: http://feeds.nytimes.com/click.phdo?i=d40374b80068ebe83cd15aad54a6f912