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.

Metamaterials – Acoustic

Posted on July 31, 2022 by Walt | Permalink 0

Metamaterials are usually identified by indicating it is a constructed material that has characteristics not observed in nature.  As the last blog demonstrated, metamaterials at the nanoscale can [..]

Metamaterials

Metamaterials – Cloak of Invisibility details

Posted on June 30, 2022 by Walt | Permalink 0

Metamaterials are usually identified by indicating it is a constructed material that has characteristics not observed in nature.  While typically referring to nanoscale materials, there are metamaterials that [..]

Metamaterials

Metamaterials – Cloak of Invisibility

Posted on May 31, 2022 by Walt | Permalink 0

An excellent example of how metamaterials work comes from Stanford University [Ref. 1].  The concept can be described as creating nanoscale antenna to affect the performance of electromagnetic [..]

Metamaterials

What comes after nanotechnology?

Posted on April 30, 2022 by Walt | Permalink 0

In many cases semiconductor industry leads the application of technology shrinkage.  Each “generation” of new devices employs smaller and smaller dimensional structures in the circuitry.  There is work [..]

Metamaterials

Is there an end to transistor area density shrinkage?

Posted on March 31, 2022 by Walt | Permalink 0

Moore’s Law is quoted in many different forms.  Basically, area density is a primary focus.  If the difference between generations in a 30% reduction in dimensions, then the [..]

Semiconductor Technology

Nanoscale and semiconductors

Posted on February 28, 2022 by Walt | Permalink 0

There has been more information in the press about the coming 3nm generation of semiconductors.  [Note: I am on the semiconductor roadmap Litho subcommittee. Only information in the [..]

Nanotechnology, Semiconductor Technology

A Look at Technology in 2022 – Nanomaterials, MEMS/NEMS, Metamaterials

Posted on January 31, 2022 by Walt | Permalink 0

As 2022 begins, predicting (guessing) where technology will go is almost always wrong.  This is an opportunity to highlight some of the developments that that appear possible to [..]

Misc Ramblings, Science

Ultra-pure material

Posted on December 31, 2021 by Walt | Permalink 0

We already reported on the development of two-dimensional nano-sheet transistors and other two-dimensional materials.  One of the challenges that has been previously mentioned is the fact that we [..]

Science

Experiments & Results

Posted on November 30, 2021 by Walt | Permalink 0

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 [..]

Misc Ramblings, Science

Interesting Times due to Interesting Discoveries

Posted on October 31, 2021 by Walt | Permalink 0

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 [..]

Misc Ramblings