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Better Hearing Thanks to Laser Welding

From Leister USA

The development of hearing aids has been facilitated by the incorporation of laser welding using the mask welding concept. It is necessary to provide protection in the area of the sound outlet in order to guarantee
reliable functioning of hearing aids that are getting ever smaller and which are worn within the ear. In the novel «SmartGuard» cerumen protection concept by Phonak, a highly elastic, extremely thin diaphragm is
welded onto a small carrier ring. The mask welding process, developed and patented by Leister Process Technologies, enables this high-precision joining process.

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