Sentences with phrase «hafnium dioxide»

So Cola, NSF Graduate Research Fellow Erik Anderson and Research Engineer Thomas Bougher replaced the calcium with aluminum and tried a variety of oxide materials on the carbon nanotubes before settling on a bilayer material composed of alumina (Al2O3) and hafnium dioxide (HfO2).

To address the problem, Braun and his Illinois colleagues coated tungsten emitters in a nanolayer of a ceramic material called hafnium dioxide.

Not exact matches

Because hafnium has a higher k - value than silicon dioxide, it should be able to do the same or better job at a thickness that prevents leakage.

Ma, who says he has worked with both the Intel and IBM research groups but is not privy to either's design, adds that the presence of silicon dioxide would require chipmakers to add nitrogen to the hafnium oxide as well.

To overcome this obstacle, chipmakers had to determine how to replace silicon dioxide with so - called high - k materials like hafnium and zirconium.