Tag: nanoscale

Semiconductor firms have Moore’s Law hope

minionsOne of the problems with semiconductor firms like Intel continually shrinking the size of chips is that soon they’ll be up against the limits of the lithographic methods used to make microprocessors.

But scientists at UC San Diego may have an answer which will let Intel engineers sleep easy in their bunny suits at night.

Nanoengineers at the university claim to have invented a new type of lithography in which – they say – nanoscale robots swim over the surface of light sensitive materials to create the surface patterns that conventional lithography produced.

The scientists said that not only does it solve some of the lithography problems of the future, but it also is a simple and more affordable way of doing the trick.

Electron beam writing is very expensive and complex.

How does it work?  The nanorobots are chemically powered, self propelled and magnetically controlled.  Jinxing Li, a student at UC San Diego said: “All we need is these self propelled nanobots and UV (ultraviolet) light. They work together like minion, moving and writing and are easily controlled by a simple magnet.”

New mirror invented

mirrorzScientists claim to have invented a mirror that uses nanoscale technology to create new effects.

According to the Optical Society’s journal Optica, the boffins demonstrated a mirror that abandons a shiny surface but reflects infrared light by using a magnetic property of a non metallic “metamaterial”.

The scientis place nanoscale antennae at the surface of the magnetic mirrors and that allows the capture of electromagnetic radiation that will open up new types of chemical sensors, solar cells, lasers and other devices.

Michael Sinclair, a scientist at Sandia National Labs said: “Our breakthrough comes from using a specially engineered, non metallic surface studded with nanoscale resonators.”

The scientists are developing metamaterials whic are substances engineered with certain properties.

The magnetic mirror uses a two dimensonal array of dioelectric resonators using tellurium.  That means the design is more reflective at infrared wavelengths.