Ultrasonic welding systems and methods of using the same
AssigneeKulicke and Soffa Industries, Inc.
InventorsTheodore J. Copperthite, Hans H. Von Tresckow, Christopher R. Longley, Siddharth D. Kataria
Life of this patent
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Abstract
An ultrasonic welding system is provided. The ultrasonic welding system includes a support structure for supporting a workpiece. The ultrasonic welding system also includes a weld head assembly including an ultrasonic converter carrying a sonotrode. The ultrasonic welding system also includes a z-axis motion system carrying the weld head assembly. The z-axis motion system includes (i) a z-axis forcer for moving the weld head assembly along a z-axis of the ultrasonic welding system, and (ii) a z-axis overtravel mechanism disposed between the z-axis forcer and the weld head assembly.
Claims21
An ultrasonic welding system comprising:
- a support structure for supporting a workpiece;
- a weld head assembly including an ultrasonic converter carrying a sonotrode;
- a z-axis motion system carrying the weld head assembly, the z-axis motion system including (i) a z-axis forcer for moving the weld head assembly along a z-axis of the ultrasonic welding system, and (ii) a z-axis overtravel mechanism disposed between the z-axis forcer and the weld head assembly;
- a z-axis encoder for sensing motion of (i) a moveable portion of the z-axis forcer with respect to (ii) a stationary portion of the z-axis forcer along the z-axis of the ultrasonic welding system;
- and
- an overtravel encoder for sensing motion of (i) the moveable portion of the z-axis forcer with respect to (ii) the weld head assembly along the z-axis of the ultrasonic welding system.
An ultrasonic welding system comprising:
- a support structure for supporting a workpiece;
- a weld head assembly including an ultrasonic converter carrying a sonotrode;
- a z-axis motion system carrying the weld head assembly, the z-axis motion system including (i) a z-axis forcer for moving the weld head assembly along a z-axis of the ultrasonic welding system, the z-axis forcer including a ball screw system for moving the weld head assembly along the z-axis of the ultrasonic welding system, and (ii) a z-axis overtravel mechanism disposed between the z-axis forcer and the weld head assembly, the z-axis overtravel mechanism including an inline spring;
- a z-axis encoder for sensing motion of (i) a moveable portion of the z-axis forcer with respect to (ii) a stationary portion of the z-axis forcer along the z-axis of the ultrasonic welding system;
- and
- an overtravel encoder for sensing motion of (i) the moveable portion of the z-axis forcer with respect to (ii) the weld head assembly along the z-axis of the ultrasonic welding system.
Dependencies are inferred from the claim text.