Crystallization of HfO2

[free_electron]

HfO2 is considered to be used as a dielectric but if it crystallizes locally its electrical properties becomes unstable. This happens around 700-800 C, which is below where most semiconductor anneals require. Shouldn't this preclude its use?

[chemisttree]

http://www.electrochem.org/meetings/scheduler/abstracts/210/1129.pdf

[free_electron]

Thanks for the paper link, very interesting. The conducting AFM is telling, since it always detects current through the dielectric, just a matter of degree of uniformity.