Ultrasonic Pin Welding System

The Ultrasonic Pin Welding System was developed specifically for pin connections in power semiconductor modules. It is suitable for processing a wide variety of pin geometries, including solid pins, pin sockets, and eyelet pins, and can be used on DBC ceramic substrates and various power module platforms. The ultrasonic welding process completely replaces conventional soldering processes and enables high-strength, reliable connections with low contact resistance and optimized thermal conductivity — without an additional cleaning process. Through the combination of optical process guidance and a fully servo-driven motion system, the system realizes a fully automated process sequence from pin feeding to welding.

Application Range

•Welding of solid pins
•Welding of pin sockets
•Welding of eyelet pins
•Processing on DBC substrates and power semiconductor modules
•Replacement of conventional soldering processes

Product Advantages

  • Complete replacement of conventional soldering processes
  • High mechanical strength and long-term reliability
  • Low contact resistance and optimized heat dissipation
  • 8 kW high-power ultrasonic generator for stable process energy
  • Flexible welding parameters for different pin and material combinations

Technical Specifications

Parameter Specification
Operating Voltage 380 V
Power 8 kW
Operating Pressure 0.6–1 MPa
Air Consumption 1,850 L/min
Compressed Air Quality Class 3 per GB/T13277-91
Amplitude Control 50–100 %
Welding Modes Time / Energy / Height
Z-Axis Stroke ≥ 60 mm
Positioning System Optical positioning
Drive System Full servo system
Loading Semi-automatic / Fully automatic
MES Integration Supported
Extraction System Optional