Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Intel Innovator, PSU Chemistry Ph.D., Finds Green Solution Focused on Planet, Profit

Abstract:
Nabil Mistkawi, a new Portland State University (PSU) chemistry graduate and full-time Intel employee, has invented a one-of-a-kind chemical formulation that enables sub-50 nanometer (nm) process technology for advanced microprocessors manufacturing. This novel and environmentally friendly chemical formulation saves Intel tens of millions of dollars annually.

Intel Innovator, PSU Chemistry Ph.D., Finds Green Solution Focused on Planet, Profit

Portland, OR | Posted on July 29th, 2010

These microprocessors serve as the "brains," or central processing units (CPUs), of today's personal computers. Microprocessors are often comprised of more than ten layers and many different materials. To successfully manufacture sub-50nm semiconductor chips, certain materials must be uniformly removed. To do this, Nabil Mistkawi implemented an elegant solution low in toxicity and high in performance.

His solution was a green chemistry concoction that would selectively dissolve certain metal, while preserving the integrity of electrical wiring components such as copper, and of insulators, that are all sandwiched together on the chip. This wet etching process is much cleaner and significantly more effective for this application than the typical chemical polishing approach to remove materials. The new process is not only effective, but also fast—completed in only two minutes.

For Intel Corporation, this "wet etching" method has served as a great, green leap forward. It was first implemented in 2006, scaled up in 2007, and has been part of the manufacturing process for current generations of Intel microprocessors. This work replaced toxic chemical formulations containing solvents that were harmful to human health as well as the environment, thus requiring strict and controlled usage protocols.

For Mistkawi, a process engineer at Intel's Hillsboro, Ore., facility, it served as the basis for his doctoral dissertation, "Fundamental Studies in Selective Wet Etching and Corrosion Processes for High Performance Semiconductor Devices," six years in the making and successfully defended this winter at Portland State University.

"I like to have students work on projects that actually amount to something tangible," says Shankar Rananavare, faculty adviser to Mistkawi and research associate professor of chemistry at PSU. "It's one thing to make it work in a test tube and beaker. It's quite another to do so at 8,000 gallons each week."

Addressing the environmental and human risks was the driving force to solve the etch selectivity challenge. This challenging task was proposed to a number of outside chemical companies and academic research labs. After one year of research they claimed that it is impossible to achieve the etch selectivity requirements. Three days after Mistkawi was asked to take a look at the problem, he had demonstrated both feasibility and proof of a concept that would prove to be cheaper, faster and cleaner.

Another fortunate byproduct of this process is actually its lack of byproduct. The chemical etching solution is 98 percent water, with fluoride content less than that of toothpaste. This "green chemistry" reduces both disposal and environmental costs. "It was nice to incorporate a green chemistry approach, but ultimately the process had to be robust enough through its performance," says Mistkawi.

The technology had been proven, but fully understanding and demonstrating the science remained important. Mistkawi continued to refine and replicate his work in labs at Intel, located in Hillsboro, Ore. At Portland State he worked to understand the science behind the process, meeting weekly with his adviser and other doctoral students (who agreed to meet on Friday evenings to accommodate Mistkawi's work schedule). Mistkawi also worked closely with the U.S. Department of Energy's National Energy Technology Laboratory in Albany, Ore., (www.netl.doe.gov) to better understand corrosion science of metal thin films.

"As good as the technology was, we wanted to make sure the science behind the process was equally well understood," says PSU's Rananavare.

Nabil Mistkawi received his doctorate at Portland State University commencement ceremonies in June 2010—one of the first ten students to complete this relatively new program. He continues to work full-time for Intel, where he is an inventor on nine patent applications filed since 2003, and is considering joining the component research team, focused on path-finding research challenges. He has received numerous awards, including the 2006 Global Intel Gold Award, given annually to an Intel employee who is engaged in a project that demonstrates exceptional environmental leadership.

Mistkawi earned a double major in biochemistry and chemistry at University of Oregon. He lives with his wife and three children in Keizer, Ore.

Portland State University has long-standing connections with regional industry—PSU already provides more graduates to Intel Oregon than any other university. These connections, with an emphasis on addressing industry challenges, benefit business, while helping expand and refine curriculum. Mistkawi's work in wet etching has already contributed to future coursework for other graduate science and engineering students at PSU.

"This story is a great example of how faculty at Portland State University partner at both an educational and research level with local industry" say Kevin Reynolds, professor and chair of PSU's Department of Chemistry. "It is one of the great strengths of our institution and as this example shows, the results can have a global impact with both positive economic and environmental outcomes."

####

About Portland State University
Portland State University (PSU) serves as a center of opportunity for over 28,000 undergraduate and graduate students. Located in Portland, Oregon, one of the nation’s most livable cities, the University’s innovative approach to education combines academic rigor in the classroom with field-based experiences through internships and classroom projects with community partners. The University’s 49-acre downtown campus provides a living laboratory for Portland State’s commitment to sustainability, with many of the 125 bachelor’s, master’s and doctoral degrees incorporating sustainability into the curriculum. PSU’s motto, “Let Knowledge Serve the City,” inspires the teaching and research of an accomplished faculty whose work and students span the globe.

About Intel
Intel (NASDAQ: INTC), the world leader in silicon innovation, develops technologies, products and initiatives to continually advance how people work and live. Additional information about Intel is available at www.intel.com/pressroom and blogs.intel.com. Intel, Intel Xeon, Core and the Intel logo are trademarks of Intel Corporation in the United States and other countries.

* Other names and brands may be claimed as the property of others.

For more information, please click here

Contacts:
David Santen
Office of University Communications
Portland State University
503-725-8765

Copyright © Portland State University

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

Antibacterial Ceramic Nanoparticles, Appropriate Material for Medical Devices May 3rd, 2015

Oxford Instruments announces winners of the 2015 Sir Martin Wood Science Prize for China May 2nd, 2015

Time Dependant Spectroscopy of Microscopic Samples: CRAIC TimePro™ software is used with CRAIC Technologies microspectrometers to measure the kinetic UV-visible-NIR, Raman and fluorescence spectra of microscopic sample areas May 2nd, 2015

ORNL researchers probe chemistry, topography and mechanics with one instrument May 2nd, 2015

Chemistry

Chemists strike nano-gold: 4 new atomic structures for gold nanoparticle clusters: Research builds upon work by Nobel Prize-winning team from Stanford University April 28th, 2015

Scientists join forces to reveal the mass and shape of single molecules April 27th, 2015

Cacao Seed Extract Used in Production of Catalytic Nanoparticles April 27th, 2015

Scientists Use Nanoscale Building Blocks and DNA 'Glue' to Shape 3D Superlattices: New approach to designing ordered composite materials for possible energy applications April 23rd, 2015

Possible Futures

Printing Silicon on Paper, with Lasers April 21st, 2015

A glass fiber that brings light to a standstill: By coupling photons to atoms, light in a glass fiber can be slowed down to the speed of an express train; for a short while it can even be brought to a complete stop April 9th, 2015

Nanotechnology in Medical Devices Market is expected to reach $8.5 Billion by 2019 March 25th, 2015

Nanotechnology Enabled Drug Delivery to Influence Future Diagnosis and Treatments of Diseases March 21st, 2015

Academic/Education

FEI Partners With the George Washington University to Equip New Science & Engineering Hall: Suite of new high-performance microscopes will be used for cutting-edge experiments at GW’s new research facility April 29th, 2015

Renishaw Raman systems used to study 2D materials at Boston University, Massachusetts, USA. April 28th, 2015

SUNY Poly and Sematech Announce Air Products Joins Cutting-Edge CMP Center At Albany Nanotech Complex April 28th, 2015

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Chip Technology

Nanometrics to Present at the B. Riley & Co. 16th Annual Investor Conference May 2nd, 2015

SUNY Poly and Sematech Announce Air Products Joins Cutting-Edge CMP Center At Albany Nanotech Complex April 28th, 2015

Two-dimensional semiconductor comes clean April 27th, 2015

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

Nanoelectronics

Surface matters: Huge reduction of heat conduction observed in flat silicon channels April 23rd, 2015

New class of 3D-printed aerogels improve energy storage April 22nd, 2015

‘Oxford Instruments Young Nanoscientist India Award 2015’ to Prof. Arindam Ghosh April 20th, 2015

Advances in molecular electronics: Lights on -- molecule on: Researchers from Dresden and Konstanz succeed in light-controlled molecule switching April 20th, 2015

Announcements

Antibacterial Ceramic Nanoparticles, Appropriate Material for Medical Devices May 3rd, 2015

Nanometrics to Present at the B. Riley & Co. 16th Annual Investor Conference May 2nd, 2015

Time Dependant Spectroscopy of Microscopic Samples: CRAIC TimePro™ software is used with CRAIC Technologies microspectrometers to measure the kinetic UV-visible-NIR, Raman and fluorescence spectra of microscopic sample areas May 2nd, 2015

ORNL researchers probe chemistry, topography and mechanics with one instrument May 2nd, 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