Patent ID: 9006014
Filing Date: 2015-04-14
Classification: A61B,B81B,B81C,H01L

Abstract:
1. A method for fabricating three dimensional high surface electrodes, comprising: designing a plurality of pillars by optimizing one or more characteristics of the pillars, wherein the plurality of pillars corresponds to one or more electrodes dependent on an isolation provided to the plurality of pillars; applying a resist onto a substrate, wherein the substrate is silicon or silicon alloy; patterning the resist, wherein the patterning defines the plurality of pillars to be formed on the substrate; removing selected portions of the substrate via etching corresponding to the pattern of the resist to form the plurality of pillars, the etching forming a pillar with an aspect ratio greater than 5; insulating a first group of pillars of the plurality of pillars from other pillars of the plurality of pillars to form one distinct electrode by forming an insulator layer with complete and uniform coverage over the first group of pillars of the plurality of pillars; and depositing a 10 nm to 500 nm metal layer on the plurality of pillars to increase the conductivity of a surface of the electrode, wherein the metal layer coverage is complete and uniform over the plurality of pillars.