Method of forming microcoil with conducting trace and attaching trace

摘要

A method for forming a microcoil includes attaching a conducting trace of conductive material to a film of insulating material and affixing an attaching trace of conductive material to the film, wherein the attaching trace is electrically isolated from the conducting trace of conductive material. The method also includes operably coupling the attaching trace to a mandrel prior to rolling of the mandrel and rolling the mandrel with the attaching trace attached thereto to circumferentially wrap the conducting trace of conductive material more than one revolution around a longitudinal axis of rolling. The attaching trace remains electrically isolated from the conducting trace after rolling the mandrel.