Navigation Links
Stretching silicon: A new method to measure how strain affects semiconductors
Date:11/3/2008

MADISON: University of Wisconsin-Madison engineers and physicists have developed a method of measuring how strain affects thin films of silicon that could lay the foundation for faster flexible electronics.

Silicon is the industry standard semiconductor for electronic devices. Silicon thin films could be the basis for fast, flexible electronics. Researchers have long known that inducing strain into the silicon increases device speed, yet have not fully understood why.

Developed by a team of researchers led by Max Lagally, the Erwin W. Mueller and Bascom Professor of Materials Science and Engineering at UW-Madison, the new method enables the researchers to directly measure the effects of strain on the electronic structure of silicon. The group published its findings in the October 10 online edition of Physical Review Letters, and the paper will soon appear in the print edition of the journal.

Standard strained silicon has so many dislocations and defects that strain measurements aren╒t accurate, so the research team starts with its own specially fabricated silicon nanomembranes. The team can induce uniform strain in these extremely thin, flexible silicon sheets.

"Imagine if you were to attach a ring and a hook on all four corners and pull equally on all four corners like a trampoline, it stretches out like that," says Lagally.

As a result, the researchers avoid the defects and variations that make it difficult to study standard strained silicon. Uniform strain allows accurate measurement of its effect on electronic properties.

The researchers drew on the powerful X-ray source at the UW-Madison Synchrotron Radiation Center (SRC), which allowed them to measure conduction bands in strained silicon. To study the energy levels, the researchers needed a wavelength-tunable X-ray source. The SRC also houses a monochromator, a device that enabled the team to choose a precise wavelength, giving thei
'/>"/>

Contact: Max Lagally
lagally@engr.wisc.edu
608-263-2078
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Move over, silicon: Advances pave way for powerful carbon-based electronics
2. Waters Publishes Rapid and Specific Method of Detection for Melamine in Infant Formula and Liquid Milk, in Support of Chinas Ministry of Science and Technology
3. SpectraScience Awarded Patent for Its Optical Biopsy System and Methods for Tissue Diagnosis
4. UC Riverside researcher develops novel method to grow human embryonic stem cells
5. PerkinElmer Expertise and Solutions Integral to Food Safety Monitoring for the Beijing Games : Methods, Applications Expertise and Instrumentation Deployed in Mobile Laboratory
6. Lumidigm Signs Strategic Agreement with Methode Electronics : Automotive Supplier Invests in Biometric Component Development
7. Enhanced Protein Tomography(TM) Method for Rapid Epitope Determination
8. Bionovo Develops a High Throughput LC-MS/MS Method for Simultaneous Quantification of Multiple Bioactive Compounds
9. febit Receives U.S. Patent for Microfluidic Extraction Method
10. Researchers develop method for transmitting medical images via cell phones
11. Signalife Awarded New U.S. Patent, System For, And Method Of, Monitoring Heartbeats Of A Patient
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... worldwide rely on sophisticated equipment, trained personnel, and ... areas against terrorist attacks. A revolutionary new electronic ... make their job much easier. , The groundbreaking ... Tel Aviv University ,s School of Chemistry and ... the Herzliya company Tracense, picks up the scent ...
(Date:7/24/2014)... Yushan Yan, Distinguished Professor of Engineering at the ... nanomaterials to solve problems in energy engineering, environmental ... focused on zeolites, porous rock with a well-defined, ... size is so precisely decided that zeolites can ... fraction of an angstrom (one-tenth of a nanometer), ...
(Date:7/24/2014)... , July 24, 2014 Research and ... "Global Genomics and Proteomics Analytical Instruments Market 2014-2018" ... http://photos.prnewswire.com/prnh/20130307/600769 Genomics is the study of ... study of the structure and functions of proteomes or ... tools and technology. Genomics involves the mapping of genes ...
(Date:7/24/2014)...  CorMedix Inc. (NYSE MKT: CRMD), a pharmaceutical ... for the prevention and treatment of cardiorenal and ... July 18, 2014 from the NYSE MKT LLC ... plan to regain compliance with continued listing standards ... is continuing the Company,s listing and has granted ...
Breaking Biology Technology:Nano-sized chip 'sniffs out' explosives far better than trained dogs 2University of Delaware researcher describes new approach for creating organic zeolites 2Global Genomics and Proteomics Analytical Instruments Market 2014-2018: Key Vendors are Agilent, Bio-Rad , F. Hoffmann, La Roche, Illumina, PerkinElmer and Thermo Fisher Scientific 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3
... 2011 Everyday Health, Inc., a leading provider of online ... property has established a partnership with the American College of ... major cardiology meetings, and will become the leader in targeted ... in place at the ACC,s 60th Annual Scientific Session & ...
... Millions of U.S. families face health and safety hazards ... of their homes.  These problems are particularly common among ... the disabled and low-income families.   To ... and Urban Development (HUD), the U.S. Centers for Disease ...
... 2011 Delta Point, Inc., a consulting firm that ... has named Ed Weimer as Executive Account Director. Weimer ... ability to highly motivate, develop and inspire his teams ... to contribute to the organization,s goals. Delta ...
Cached Biology Technology:MedPage Today Signs Exclusive Content & Advertising Deal with the American College of Cardiology for Coverage of More Than 20 Major Cardiology Meetings 2MedPage Today Signs Exclusive Content & Advertising Deal with the American College of Cardiology for Coverage of More Than 20 Major Cardiology Meetings 3Unhealthy Homes Pose Real Danger to Millions of Families 2Ed Weimer Joins Delta Point, Inc. as Executive Account Director 2
(Date:7/24/2014)... sticky research out of York University shows a surprisingly ... toxic grass fungus: moose saliva (yes moose saliva). ... "Ungulate saliva inhibits a grassendophyte mutualism" shows that moose ... (which hosts a fungus called epichlo festucae that produces ... less toxicity. , "Plants have evolved defense mechanisms to ...
(Date:7/24/2014)... at Albert Einstein College of Medicine of ... J. Fox Foundation for Parkinson,s Research to translate a ... This drug discovery project will test chemical compounds on ... a drug that acts on an underlying cause of ... help many people manage their symptoms, we are eager ...
(Date:7/24/2014)... this week for an all-day public forum on a ... (EPA) to dredge toxic sediment from an eight-mile stretch ... called the plan, which proposes removing 4.3 million cubic ... riverbed, one of the largest cleanups in the agency,s ... off-site. , "We need to ensure the future well-being ...
Breaking Biology News(10 mins):Moose drool inhibits growth of toxic fungus: York U research 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 3Experts Weigh the Pros and Cons of a $1.7 Billion EPA Cleanup Plan for the Passaic River at an NJIT 2
... genome or the egg genome? Researchers have answered a ... the thousands of long stretches of repeated DNA in the ... The answers, published online by Nature Genetics on ... duplications in the human genome that are partly responsible for ...
... Ph.D., distinguished professor of human genetics and biology at ... and a Howard Hughes Medical Institute investigator, has won ... The announcement was made this morning by the Nobel ... prize recognizes Capecchis pioneering development of knockout mice technology, ...
... University of Cincinnati (UC) radiologists have developed a ... that eases diagnosis of venous diseases. Multi-detector ... create three-dimensional images of arteries, the vessels which ... distribute blood throughout the body. Veins, smaller vessels ...
Cached Biology News:Which came first, the chicken genome or the egg genome? 2Which came first, the chicken genome or the egg genome? 3Gene-targeting pioneer Mario Capecchi shares 2007 Nobel Prize in Medicine 2Gene-targeting pioneer Mario Capecchi shares 2007 Nobel Prize in Medicine 3New thoracic imaging approach can pinpoint underlying venous problems 2
... kit was tested on rat tissue extracts (liver, ... ( S. cerevisae ) extract. It was also ... and cell lines. Application: A simple and reliable ... based on the detection of the inorganic phosphate ...
... Oxidative stress is the condition in which ... oxidant stimuli and the various antioxidants. Oxidative ... the pathogenesis of several diseases, including artherosclerosis, ... body possesses several antioxidant systems that are ...
...
... is critical to the maintenance of ... proteins as important and diverse as ... shock and stress response, antigen presentation, ... ion channels, cell cycle regulation, transcription, ...
Biology Products: