tag: lasers

Power/Performance Bits: June 7
By Jesse Allen - 07 Jun, 2016 - Comments: 0

Tiny lasers on silicon A group of scientists from Hong Kong University of Science and Technology, the University of California, Santa Barbara, Sandia National Laboratories, and Harvard University were able to fabricate tiny lasers directly on silicon. To do this, they first had to resolve silicon crystal lattice defects to a point where the cavities were essentially equivalent to those gr... » read more

Manufacturing Bits: Nov. 25
By Mark LaPedus - 25 Nov, 2014 - Comments: 0

Direct-write diamond patterning Purdue University has devised a new technique that uses a pulsing laser to create synthetic nanodiamond films and patterns on a graphite substrate. The ability to pattern diamond surfaces could one day be used to make chips, biosensors and fuel cells. In the lab, researchers devised a multi-layered film, which includes a layer of graphite topped with a glass ... » read more

System Bits: Nov. 4
By Ann Mutschler - 04 Nov, 2014 - Comments: 0

Turning loss to gain By reexamining longstanding beliefs about the physics of lasers, Princeton University engineers have shown that by carefully restricting the delivery of power to certain areas within a laser could boost its output by many orders of magnitude. The team believes this finding could enable more sensitive and energy-efficient lasers, as well as potentially more control over ... » read more

Visiting The Future At CLEO
By Marc David Levenson - 17 Jul, 2014 - Comments: 0

CLEO - The Conference on Lasers and Electro-Optics – presents the most comprehensive snapshot of laser and photonics applications. Presented by three professional societies (OSA, APS and IEEE Photonics) it was held in San Jose last month. While few of the topics covered are mainstream today for the semiconductor industry, one doesn’t have to look too far to find impact and potential synergi... » read more

Is There Light At The End Of Moore’s Tunnel?
By Brian Bailey - 18 Dec, 2013 - Comments: 2

Last month’s article, “Is There Light At The End Of Moore’s Tunnel,” examined the state of the industry in terms of integrating photonics components onto silicon. It concentrated on the piece that has been the hardest to achieve – the laser. However, as realizing that integration goal has become closer to reality, it has also waned in terms of the number of people who believe it is th... » read more

Is There Light At The End Of Moore’s Tunnel
By Brian Bailey - 22 Nov, 2013 - Comments: 2

Electrons are slow, clumsy and quite easily distracted. They’re slow because it now takes a signal longer to cross a chip than the period of the clock signal. They often don’t travel in straight lines as they collide with other atoms. And electromagnetic interference between adjacent signals can mess with the information they are transferring. On the other hand, light has none of these p... » read more

System Bits: Nov. 12
By Brian Bailey - 12 Nov, 2013 - Comments: 0

3D Printers When thinking about 3D printers, most people probably think about creating small plastic parts or prototypes. 3D printing now can be used to print lithium-ion microbatteries the size of a grain of sand. The printed microbatteries could supply electricity to tiny devices in fields from medicine to communications, including many that have lingered on lab benches for lack of a batt... » read more

Blog Review: Oct. 23
By Ed Sperling - 23 Oct, 2013 - Comments: 0

It was a good week for good questions. Cadence’s Brian Fuller asks what applications dream about—or rather what’s their potential. In the context of technology development, that’s worth pondering. Mentor’s Mike Jensen asks what will you be remembered for. There are a couple other important addendums to that, such as how long you will be remembered. And perhaps even more important, ... » read more

Manufacturing Bits: Sept. 10
By Mark LaPedus - 10 Sep, 2013 - Comments: 0

Rock Around The Clock National Institute of Standards and Technology’s two experimental atomic clocks have set a new record for stability. Resembling a pendulum or metronome, NIST’s atomic clocks can swing back and forth with perfect timing for a period comparable to the age of the universe. The clocks are based on ytterbium atoms. The clock ticks are stable to within less than two part... » read more

EUV glass still less than half full, but level is rising
By Katherine Derbyshire - 30 Mar, 2012 - Comments: 0

EUV first drew the semiconductor industry’s attention in the late 1990s, as lithographers began to consider the “post-optical” future. At that time, the future was expected to arrive with the 100-nm technology node, by 2004. ArF lithography turned out to be far more extensible than anticipated, though, and is still going strong fifteen years later. Which is fortunate given that, as we now... » read more

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