Fig. 2: Determining the critical size of the micromachined pillar.
From: Micromachined structures decoupling Joule heating and electron wind force
a Schematic of the sample geometry with a micromachined pillar (height: H and length/width: L). b Current cut-off and c Heat conduct from the matrix to the pillar. d Current density fields near the pillar of different H/L values under a pulsed ECT at a current density of 700 A mm−2 for 8 ms. e Plots of the maximum current density at the pillar top with different H/L. f Temperature fields near the pillar of different H (or L) values (constant H/L = 1.5). g Plots of the maximum temperatures at the pillar top with different H values. h Current density–time and i temperature–time curves of the matrix region and pillar top of a micromachined pillar with size H × L × L = 52.5 × 35 × 35 μm3 treated at a current density of 700 A mm−2 for 8 ms.
