Author Archives: Walt

About Walt

I have been involved in various aspects of nanotechnology since the late 1970s. My interest in promoting nano-safety began in 2006 and produced a white paper in 2007 explaining the four pillars of nano-safety. I am a technology futurist and is currently focused on nanoelectronics, single digit nanomaterials, and 3D printing at the nanoscale. My experience includes three startups, two of which I founded, 13 years at SEMATECH, where I was a Senior Fellow of the technical staff when I left, and 12 years at General Electric with nine of them on corporate staff. I have a Ph.D. from the University of Texas at Austin, an MBA from James Madison University, and a B.S. in Physics from the Illinois Institute of Technology.

Experiments & Results

Previously, we have covered the challenges of experiments and the need for reproducibility.  Recently, there has been an additional occurrence that merits discussion.  There has been a study where roughly 100 peer reviewed articles that were published in respectable journals … Continue reading

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Interesting Times due to Interesting Discoveries

In previous blogs, two dimensional semiconductors have been discussed.  Work at Singapore University of Technology and Design has developed a different approach to solving the issues of very small transistors that will be required for future generations of semiconductors [Ref. … Continue reading

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Evolving nano developments

With the emphasis on nanotechnologies and the emphasis on two-dimensional materials, other areas that are pushing boundaries are often overlooked.  A recent article [Ref. 1] summarizes work done at King’s College London on relieving pain.  Their treatment employs a ultra-low … Continue reading

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More on Semiconductors

Last month, this blog covered some of the challenges of continually shrinking semiconductor geometries and the related difficulties with traditional transistor designs.  This month’s blog explores transistor geometry.  In May 2021, IBM announced a 2nm nanosheet semiconductor technology. [Ref. 1]  … Continue reading

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The Shrinking Dimensions

As semiconductor manufacturing continues the dimensional shrinking process, novel ideas are required to achieve the ability to continue shrinking the dimensions while increasing the performance.  There are some thoughts that this potion of the Moore’s law curve will provide some … Continue reading

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More on Cement and other Nano

Just prior to the end of June, there were two articles on cement/concrete.  “How to Make a ‘Smarter’ Cement” [Ref. 1] covers reports from Northwestern University’s team that introduced nanoparticles into ordinary cement.  They investigated two types of nanoparticles and … Continue reading

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Nanomaterials and Cement

It has been an interesting month as the country starts coming back to “normal”.  I was fortunate to have the opportunity to “attend” (virtually) a presentation by a University of Texas at Austin professor.  Professor Hugh Daigle provided a very … Continue reading

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2D Materials are Making Progress

The recent past few months have seen a few published articles on 2D materials and their applications.  The pace is picking up. One of the challenges of 2D materials is that the materials need to be incorporated into some other … Continue reading

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What is the Cost of Ownership?

Recently, the term “Cost of Ownership” has been appearing in various papers about a number of topics, including wind power and electric vehicles among others.  The Wall Street Journal had an article comparing the emissions cost of a gasoline car … Continue reading

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It’s time to revisit Nano Technology Safety (Nano-Safety)

Fifteen years ago (2006) there was a white paper published [Ref. 1] that addressed the need to create a structured approach to the handling and usage of nanomaterials.  As stated in the September 2013 blog on Nano-Safety, the primary issues … Continue reading

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