Showing posts with label Bell Labs. Show all posts
Showing posts with label Bell Labs. Show all posts

Thursday, August 28, 2008

Bell Lab's physics research to be shut down

Left to right:
William Shockley, John Bardeen, and Walter Brattain
1947

I am sure that there is some sound corporate reason for this move--NOT.

"Bell Labs Kills Fundamental Physics Research"

by

Priya Ganapati

August 27th, 2008

Wired

After six Nobel Prizes, the invention of the transistor, laser and countless contributions to computer science and technology, it is the end of the road for Bell Labs' fundamental physics research lab.

Alcatel-Lucent, the parent company of Bell Labs, is pulling out of basic science, material physics and semiconductor research and will instead be focusing on more immediately marketable areas such as networking, high-speed electronics, wireless, nanotechnology and software.

The idea is to align the research work in the Lab closer to areas that the parent company is focusing on, says Peter Benedict, spokesperson for Bell Labs and Alcatel-Lucent Ventures.

"In the new innovation model, research needs to keep addressing the need of the mother company," he says.

That view is shortsighted and may drastically curtail the Labs' ability to come up with truly innovative discoveries, respond critics.

"Fundamental physics is absolutely crucial to computing," says Mike Lubell, director of public affairs for the American Physical Society. "Say in the case of integrated circuits, there were many, many small steps that occurred along the way resulting from decades worth of work in matters of physics."

Bell Labs was one of the last bastions of basic research within the corporate world, which over the past several decades has largely focused its R&D efforts on applied research -- areas of study with more immediate prospects of paying off.

Without internally funded basic research, fundamental research has instead come to rely on academic and government-funded laboratories to do kind of long-term projects without immediate and obvious payback that Bell Labs used to historically do, says Lubell.

Most of the scientists working in the company's fundamental physics department have been reassigned, says Benedict. Nature Science, which first reported the news, says just four scientists are left working the fundamental physics department in Murray Hill, New Jersey. Benedict wouldn't confirm or deny that.

Computing and wireless technologies owe much to advancements in physics, though the connection may not always be immediately apparent. An example is the Global Positioning Systems or GPS.

For instance, an integral element of GPS are atomic clocks, which stemmed from the creation of the hydrogen maser.

The hydrogen maser, or hydrogen frequency standard, uses the properties of a hydrogen atom to serve as a precision frequency reference.

"GPS is based on very accurate timing mechanisms," says Lubell. "So the measure of time and the frequency standards that are used to do it date back to research in optical pumping which led to the development of hydrogen maser."

In the past Bell Labs was the place where such fundamental research that impacts the fields of both computing and physics could meet.

Bell Labs was founded in 1925 by Walter Gifford, then president of AT&T. AT&T, a monopoly, established Bell Telephone Laboratories, popularly known as Bell Labs, as a joint venture with Western Electric, AT&T's manufacturing subsidiary.

The Labs became the Mecca for researchers in science, computers and mathematics. Deregulation, however, forced AT&T in 1995 to spin off Bell and other parts of the company into Lucent Technologies. The move marked a shift in fortunes for the research arm as research budgets came to be trimmed and Alcatel-Lucent faced increasing pressure from stockholders.

"Bell Labs could do the kind of fundamental research it did in the past because it was functioning as part of a monopoly," says Lubell. "With that gone the landscape changed dramatically."

In recent years, Bell Labs' physics unit had its share of controversy when researcher J. Hendrik Schön was found to have published data in the area of molecular-scale transistors between 1998 and 2001 that had been manipulated and falsified.

That's a long way from where the Labs once stood with its position as a Nobel Prize magnet.

In 1937, Bell Labs researcher Clinton Davisson shared the Nobel Prize in physics for demonstrating the wave nature of matter.

Nearly twenty years later, in 1956 came the Nobel prize for inventing the transistor and it was shared by William Shockley, John Bardeen and Bell scientist Walter Brattain.

In the seventies, Bell Labs won two Nobel prizes in physics back-to-back in the years 1977 and 1978. Philip Anderson shared the Nobel for developing an improved understanding of the electronic structure of glass and magnetic materials. The next year Arno Penzias and Robert Wilson were feted for their discovery of cosmic microwave background radiation.

Former Bell Labs researcher Steven Chu shared the Nobel in 1997 for developing methods to cool and trap atoms with laser light. A year later Horst Stormer, Robert Laughlin, and Daniel Tsui were awarded a Nobel for the discovery and explanation of the fractional quantum Hall effect.

In the last few years, Lucent has sold its semiconductor business and that means research in areas connected to that had to be scaled back, especially in areas such as integrated circuits and Microelectromechanicals Systems (MEMS).

Meanwhile, Alcatel-Lucent continues to hack away at its jewels. Though Murray Hill in New Jersey, the company's U.S. headquarters, and the site of many great scientific discoveries remains safe, Alcatel-Lucent has sold its Holmdel campus. Holmdel's technological contributions include contributions to Telstar, the first communications satellite and Chu's Nobel Prize-winning work.

Still for fundamental physics research there will be life after Bell Labs, though it will be dependent on the whims of the federal government.

Increasingly, long-term research is being carried out in universities and national laboratories with federal grants, says Lubell.

For Bell Labs, yet another chapter in its storied history of comes to a close taking the once iconic institution closer to being just another research arm of a major corporation.


Deceased--Morgan Sparks


"Our Mr. Sun"--boomer classic

Friday, May 9, 2008

Deceased--Morgan Sparks

Morgan Sparks [left]
Bell Labs
1951

The New York Times

May 8th, 2008

Morgan Sparks, Bell Scientist, Dies at 91

by

Douglas Martin


Morgan Sparks, who made critical contributions to developing the second-generation transistor, which became a building block of modern electronic devices, died on Saturday at his daughter’s home in Fullerton, Calif. He was 91.

The cause was congestive heart failure, his son Gordon said.

In 1947, transistors were invented at Bell Telephone Laboratories, the research arm of AT&T. They were intended to replace the vacuum tube as a device to control electric current. Vacuum tubes had made radios, long-distance calling and other modern amenities possible, but used lots of power, operated at hot temperatures and burned out rapidly.

As part of the scientific team led by William Shockley, the Bell labs scientists Walter Brattain and John Bardeen used semiconductors in the first patented transistor. Semiconductors are so called because they are poorer carriers of electricity than conductors like copper, but not poor enough to be called insulators.

A transistor is like a controllable valve by which a weak signal controls a much larger flow. By turning on and off, transistors signal the ones and zeros that combine to signify information stored in a computer.

Transistors quickly proved to be much more efficient than vacuum tubes, and never stopped leaping in efficiency. A microchip can contain hundreds of millions of transistors integrated in design through which transistors successively and almost instantaneously amplify electrical signals to do things as diverse as operate a microwave oven or control slipping car wheels.

But the first transistors depended on two hair-thin wires resting on a tiny speck of germanium, the initially preferred semiconductor material. Despite having much greater amplifying power than vacuum tubes, those early transistors were noisy in an electronic sense and unreliable. They were also very fragile, unsuitable for use in consumer products.

Dr. Shockley conceived of a totally different approach, beginning in early 1948 with solitary work in a Chicago hotel room as a meeting of the American Physical Society was held downstairs.

The new transistor would look like a sandwich, with two layers of one type of semiconductor surrounding a second kind. But Dr. Shockley's team had to address challenge upon challenge. The first was proving that electricity could travel straight across a crystal instead of around the surface. Richard Haynes, a physicist, was a leader in this.

Gordon Teal, working with the engineer John Little, figured out how to build a large single crystal of germanium, an achievement that meant current flow could last up to 100 times longer than it had in the old cut crystals.

Dr. Sparks worked with Dr. Teal to develop techniques to add impurities to crystals to control the electrical flow. Dr. Sparks also found a way to make the middle layer of the semiconductor sandwich thinner than a sheet of paper, which prevented the current from becoming unfocused.

In Philadelphia, on Dec. 31, 1951, Bell announced its improved transistor, calling it a junction transistor. It amplified a signal 100,000 times and occupied just 1/400th of a cubic inch. By contrast, a typical subminiature vacuum tube occupied about an eighth of a cubic inch.

"Transistors of this type," Dr. Shockley said, "are much more efficient than the older type and consume far less power."

Soon, the new junction transistors were in countless portable radios, and their distant descendants are now in thousands of other kinds of useful devices.

Morgan Sparks was born on July 6, 1916, in Pagosa Springs, Colo., where his father owned a hardware store. His quick intelligence led to his skipping first and fifth grades. When he was 9, the family moved to Harlingen, Tex., where Mr. Sparks attended a nearby community college for a year, working at a soda counter to pay expenses.

He won a scholarship to Rice University, where he earned his bachelor's and master's degrees in chemistry. He then earned his doctorate in physical chemistry at the University of Illinois, Urbana-Champaign, in 1943 as a Rockefeller Foundation fellow.

He next joined Bell Labs, where he first worked on electrical storage experiments involving elements like tantalum and niobium, then called columbium. He was also assigned to wartime projects like developing batteries that could operate in seawater, for electric torpedoes and downed-aviator missions.

In 1997 interview with Electronic Engineering Times, Dr. Sparks said there were monthly meetings on the transistor projects involving chemists, physicists, metallurgists and electronics engineers. Dr. Shockley met with his group at least once a week. Dr. Sparks remembered Dr. Shockley as having greater insight into materials than anybody he had known.

Dr. Sparks moved up the management ladder, and in 1972 was sent to New Mexico as president of Sandia National Laboratories, which was then managed by AT&T. In 1981, he retired from the Bell system to be dean of the Robert O. Anderson School of Management at the University of New Mexico.

Dr. Sparks's wife of 57 years, the former Elizabeth MacEvoy, died in 2006. In addition to his son Gordon, who lives in Waitsfield, Vt., he is survived by another son, Morgan, of Burlington, Vt.; his daughters Margaret Potter of Waitsfield and Patricia Fusting of Fullerton, Calif.; and six grandchildren.

Mr. Sparks's wife was a secretary at Bell Labs during his early years there. While the scientists and engineers created modern electronics, the scientists kept her busy changing the keys on her typewriter to register foreign languages and exotic mathematical symbols.