Braze and electrode wire assemblies, e.g., used with an implantable microstimulator, include a wire welded in the through-hole of an electrode, which electrode is brazed to a ceramic case that is brazed to a metal ring that is welded to a metal can. The braze joints are step or similar joints that self-center...http://www.google.co.uk/patents/US7132173?utm_source=gb-gplus-sharePatent US7132173 - Self-centering braze assembly