Patent ID: 8668131
Filing Date: 2014-03-11
Classification: B23K

Abstract:
1. An apparatus comprising: a flux plate having a top surface; a dipping cavity in the flux plate and recessed from the top surface; a flux leveler over the flux plate and configured to move in a direction parallel to the top surface, wherein the flux leveler comprises a metal frame configured to hold a flux and to slide relative to the flux plate; a first piezoelectric actuator configured to adjust a vertical distance formed between a bottom edge of the flux leveler and the top surface in response to a controlling voltage applied to electrodes of the first piezoelectric actuator; and a foot section directly attached to the first piezoelectric actuator, wherein the first piezoelectric actuator is configured to raise the metal frame in response to the controlling voltage, and wherein the foot section remains contacting the top surface when the metal frame is raised.