Patent ID: 6905736
Filing Date: 2005-06-14
Classification: B82Y,C23C,G01K

Abstract:
1. A method of making a nano sized sensor comprising the steps of: (a) depositing a first metal nano sized strip on an electrical insulator substrate by a FIB (Focused Ion Beam) deposition process; (b) depositing a second metal nano sized strip on the same said substrate by said FIB process in a partially overlapping portion on said first metal nano sized strip, the second metal nano sized strip being formed of a different metal material from the first metal nano sized strip, the partially overlapping portion being selected from one of a ball-shaped portion, and a point shaped configuration portion, wherein the first metal nano sized strip and the second metal nano sized strip each include a thickness of approximately 50 nm; and (c) forming a bi-metal sensing junction from the partially overlapping portion between the first metal nano sized strip and the second metal nano sized strip, wherein the bi-metal sensing junction includes a cross-sectional area of approximately 50×50 nm