Patent ID: 6346030
Filing Date: 2002-02-12
Classification: B81C,C25D

Abstract:
A method of fabricating a microdevice having an interior cavity with at least one micrometer-size interior surface feature, comprising the steps of:(a) providing a shaped bit having a desired surface contour with at least one one micrometer-size surface feature; (b) rotating a sacrificial mandrel about a mandrel axis in a precision turning machine; (c) coating the sacrificial mandrel with a polishing compound; (d) polishing a surface of the rotating mandrel with the contoured surface of the to shaped bit so as to form a contoured sacrificial mandrel exhibiting a desired surface pattern corresponding to a inverse of the contoured surface of the bit; (e) coating the contoured sacrificial mandrel with a conformal structural material; and (f) removing the mandrel from the structural material.