Dec 21, 2007

Removal of the smallest particles without damage

SONOSYS 2 MHz Megasonic system with submersible transducer for 4’’ substrates. Source: SONOSYS GmbH.
Dec 21, 2007

The increasing integration of smallest structures in semiconductors and microsystems is resulting in higher cleaning requirements. The newly developed Megasonic system from SONOSYS uses a frequency of two megahertz to remove particles with sizes down to the nano range without damaging the substrate.

Avoiding damage even to the finest structures is a challenge for cleaning systems that work on the micro level. An ultrasonic cleaning system with an operating frequency in the megahertz range is far superior to conventional low-frequency ultrasonic methods that use, for example, 40 kilohertz. Due to the much lower cavitation energy, microstructures are not destroyed, and the cleaning process is optimized.

The hermetically encapsulated transducers in stainless steel or plastic are suitable for integration into existing baths, either on the bottom or on the side walls. In addition to the standard versions for 4", 6" and 8" substrates, the submersible transducers can also be dimensioned to customer requirements.

SONOSYS Ultraschallsysteme GmbH
www.sonosys.de

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