A. Krol, C.J. Sher, et al.
Surface Science
Magnetic head requirements for high aspect ratio pole tips were met using single-layer PMMA exposed at 100 kV. Using cooled mixtures of IPA and water and ultrasonic agitation, 14:1 aspect ratios in resist were demonstrated.
A. Krol, C.J. Sher, et al.
Surface Science
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
K.A. Chao
Physical Review B
J.Z. Sun
Journal of Applied Physics