Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Research Helps Ensure Clean Integrated Circuit Manufacturing

Abstract:
Semiconductor Research Corporation (SRC), the world's leading university-research consortium for semiconductors and related technologies, and researchers from SEMATECH and The University of Texas at Dallas are the first to demonstrate that specific potentially hazardous organic contaminants present in a type of single-walled carbon nanotubes (SWNTs) can be easily removed. This discovery should enable the continued consideration of SWNTs for advanced nanoelectronics manufacturing, as this material shows promise for continuing the benefits of scaling with significantly reduced risk to the environment. In addition to semiconductor manufacturers, several other industries also could gain greater product effectiveness from this research.

Research Helps Ensure Clean Integrated Circuit Manufacturing

Research Triangle Park, NC | Posted on June 20th, 2011

The research team analyzed the potential risk of a variety of functionalized SWNTs, and found that one family of nanotubes, carboxylated single-walled carbon nanotubes (CSWNTs), reduced the ability of mammalian cells to grow in culture. This is considered to be evidence of toxicity. However, researchers also found that standard separation techniques could remove the contaminating material, indicating that the purified nanotubes themselves were not responsible for the observed toxicity. The data suggests that specific organic impurities present in the CSWNTs may be responsible for much of the concern associated with this material, and further work is in progress to test this idea.

"The process for removing the toxic material from the CSWNTs is relatively easy, and could be applied to this type of common SWNT if it's to be used in a semiconductor manufacturing facility," said Rockford Draper, Professor, Departments of Molecular & Biology and Chemistry at the University of Texas at Dallas. "These insights could affect the way companies purchase and use certain SWNTs."

SRC's Center for Environmentally Benign Semiconductor Manufacturing supports a major effort to understand, assess and screen emerging materials for their potential impact on human health, safety and the environment—well before they are considered for the manufacturing of integrated circuits.

"In the International Technology Roadmap for Semiconductors, SWNTs are positioned as emerging research materials with several potential application opportunities. As this technology continues to evolve, SWNTs may help to enable the extensible manufacturability of scaled integrated circuits into the deep nanometer regime," said Dan Herr, SRC Director of Nanomanufacturing Sciences. "Our Center for Environmentally Benign Semiconductor Manufacturing focuses on developing high performance green materials and processes, with minimal environmental safety and health impact. It is developing tools for rapidly screening new candidate materials for their hazard and manufacturing potential, early in their research life cycle."

In the UT Dallas research, the data suggests that small carbon fragments generated during the CSWNT production process may be the cause of observed toxicity, which is distinct from SWNTs. The presence of small oxidized carbon fragments in CSWNTs has been previously reported by industry researchers, but this is the first data to suggest it could be toxic.

The research is directed by SRC through the Center for Environmentally Benign Semiconductor Manufacturing, which anticipates and addresses future industry needs, with additional funding by the National Institute of Environmental Health Sciences.

For more information and details about the research, see the forthcoming manuscript entitled "Cytotoxicity Screening of Single-Walled Carbon Nanotubes: Detection and Removal of Cytotoxic Contaminants from Carboxylated Carbon Nanotubes" by Wang et al, that has been recommended for publication in Molecular Pharmaceutics.

####

About Semiconductor Research Corporation (SRC)
Celebrating 29 years of collaborative research for the semiconductor industry, SRC defines industry needs, invests in and manages the research that gives its members a competitive advantage in the dynamic global marketplace. Awarded the National Medal of Technology, America’s highest recognition for contributions to technology, SRC expands the industry knowledge base and attracts premier students to help innovate and transfer semiconductor technology to the commercial industry.

For more information, please click here

Copyright © Semiconductor Research Corporation (SRC)

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Nanospiked bacteria are the brightest hard X-ray emitters July 2nd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Chip Technology

New technology using silver may hold key to electronics advances July 2nd, 2015

Influential Interfaces Lead to Advances in Organic Spintronics July 1st, 2015

Emergence of a 'devil's staircase' in a spin-valve system July 1st, 2015

GLOBALFOUNDRIES Completes Acquisition of IBM Microelectronics Business: Transaction adds differentiating technologies, world-class technologists, and intellectual property July 1st, 2015

Nanotubes/Buckyballs/Fullerenes

Discovery of nanotubes offers new clues about cell-to-cell communication July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

NIST ‘How-To’ Website Documents Procedures for Nano-EHS Research and Testing July 1st, 2015

Cellulose from wood can be printed in 3-D June 17th, 2015

Announcements

Nanospiked bacteria are the brightest hard X-ray emitters July 2nd, 2015

Engineering the world’s smallest nanocrystal July 2nd, 2015

Producing spin-entangled electrons July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Environment

NIST ‘How-To’ Website Documents Procedures for Nano-EHS Research and Testing July 1st, 2015

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

The peaks and valleys of silicon: Team of USC Viterbi School of Engineering Researchers introduce new layered semiconducting materials as silicon alternative June 27th, 2015

NNI Publishes Workshop Report and Launches Web Portal on Nanosensors: Both outputs support the Nanotechnology Signature Initiative ‘Nanotechnology for Sensors and Sensors for Nanotechnology: Improving and Protecting Health, Safety, and the Environment’ June 24th, 2015

Alliances/Trade associations/Partnerships/Distributorships

Harris & Harris Group Portfolio Company, AgBiome, Announces Partnership to Accelerate the Discovery of Next Generation Insect-Resistant Crops July 1st, 2015

Graphene breakthrough as Bosch creates magnetic sensor 100 times more sensitive than silicon equivalent June 28th, 2015

Dyesol Joins Solliance as an Industrial Partner June 17th, 2015

The European project SVARNISH, a step forward in the food packaging sector June 11th, 2015

Research partnerships

Producing spin-entangled electrons July 2nd, 2015

Harris & Harris Group Portfolio Company, AgBiome, Announces Partnership to Accelerate the Discovery of Next Generation Insect-Resistant Crops July 1st, 2015

Leti Announces Launch of First European Nanomedicine Characterisation Laboratory: Project Combines Expertise of 9 Partners in 8 Countries to Foster Nanomedicine Innovation and Facilitate Regulatory Approval July 1st, 2015

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project