The Ceramic Advantage

Ceramic tip

Benefits | Ultrasonic Efficiency | Economical


Why Ceramic?

DeWeyl Tool developed the industry’s first Ceramic tip bonding wedge, because common bonding wedge materials such as Tungsten Carbide and Titanium exhibited specific performance limitations.

The ceramic material is bonded to a tungsten carbide shank utilizing, once again, a process developed and mastered by DeWeyl Tool. And, while designed primarily for ultrasonic bonding of gold wire, many customers have reported tremendous tool life while bonding aluminum wire with very little aluminum build up on the bond flat. Please refer to the Recommendations page for further details.


Our Ceramic tip wedge offers impressive benefits for both gold wire, aluminum wire and gold ribbon ultrasonic applications. It also has a proven track record on both production and R&D products. Here are some of the reported advantages when using our Ceramic tip wedge:

  • Increased Bond Adhesion
  • Increased Pull Test Results
  • Ultrasonic Output Reduction
  • Extended Wedge Life
  • Improved Bond Definition
  • Gold Bonding at Ambient Temperatures
  • Improved Production Yields


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One of the most significant benefits of the DeWeyl Ceramic wedge is the excellent tool to wire interface. The ideal ultrasonic bonding wedge allows for zero tool slippage while in contact with the wire and during the application of ultrasonic energy. If the tool has zero slippage then the ultrasonic transfer of energy is operating at 100%. This is the value of the Ceramic wedge. The naturally porous structure of the Ceramic offers a surface texture that couples with the wire giving optimum ultrasonic transfer. This efficiency in transfer allows for a reduction in ultrasonic power and time levels, which results in a superb tool-to-wire interface and thus efficient ultrasonic energy transfer. Difficult applications due to low bonding temperature or contaminated bond surfaces are made easier with the use of the Ceramic tool.


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The standard angle feed Ceramic wedge (non vertical feed) costs only 8% more than the cost of titanium. And the cost of a vertical feed Ceramic tool is only 18% more expensive than the cost of titanium. The additional cost for ceramic becomes very economical when DeWeyl customers understand that the life expectancy of Ceramic is 2-3 times greater than other available materials. The net cost per bond thus is significantly lower with the Ceramic wedge.


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