Patent ID: 8610100
Filing Date: 2013-12-17
Classification: C30B,H01M,Y02E

Abstract:
1. An apparatus comprising: recessed nanowires in a silicon substrate, wherein the tops of the nanowires are at a level below the top of the substrate; a metallic layer; an electrolyte in contact with the recessed nanowires and the metallic layer, wherein the metallic layer, the recessed nanowires, and the electrolyte are configured to form a self-packaged battery; wherein the recessed nanowires are formed by: a) depositing a masking material over a substrate comprising silicon; b) removing the masking material using a first process that removes the masking material in preference to silicon and is configured to partially remove masking material; c) removing silicon using a second process that removes silicon in preference to the masking material; d) repeating the sequence of steps a), b) and c) until repetition of the sequence of steps a), b) and c) is stopped; wherein the nanowires are fabricated by further etching a recess that has been etched into the silicon substrate, wherein the nanowires and the recess are etched with the same process, and wherein the process self packages the battery.