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08-20-2020

Better Sound with Just a Few Micrometers

PEEK Membranes in Micro Speakers

Victrex has introduced a line of ultra-thin APTIV-DBX films for micro speakers. The 3 to 6 µm-thick films are intended for smartphones and headphones.

PEEK is especially good for the very thin membranes used in micro speakers (© Victrex)

PEEK is especially good for the very thin membranes used in micro speakers (© Victrex)

In the highly competitive smartphone and mobile devices market, the electronics industry faces the challenge of manufacturing improved micro speakers with better quality and performance. They have to provide better audio output along with a wider frequency range in order to generate a louder, richer audio experience, without impairing the functioning of the device. Membranes that are only a few micrometers thick play a key role in the sound of micro speakers. However, even slight variations in the thickness of the films and membranes impair their acoustic performance. This can be avoided with improved material quality and a comprehensive understanding of design and processing.

Thickness Tolerance of ±5 %

The APTIV-DBX film from Victrex was specially developed for micro speaker membranes. It is made of polyether ether ketone (PEEK). According to the manufacturer, the film, with a thickness tolerance of ±5 %, allows more uniform laminate thickness and consequently can be manufactured with greater consistency. This is claimed to lead to lower variability in the fundamental frequency (F0**) and total harmonic distortion (THD**), resulting in more uniform acoustic performance. In addition, according to Victrex, the reduced thickness deviation in the film helps to improved output and therefore lowers manufacturing costs by reducing rejects.

Additional information
  • 04-28-2020

    Cryogenic Victrex CT Polymer Selected by Advanced Engineering Valves

    Improved Sealing Reliability

    Belgium-based Advanced Engineering Valves (AEV), an Emerson company and industry leader for cryogenic and severe service ball valves, has...   more

  • 05-10-2019

    Investment in 3D Technology

    Collaboration of Victrex and Bond

    By linking Victrex´s material application with Bond´s 3D processing technology, the common objective is to set the path to produce functional parts which contribute to improve the performance of components.   more

  • 12-04-2018

    40 Years of PEEK Success

    Victrex Celebrates Continuous Development

    Since 1978, the company has developed new markets and applications for PEEK with product forms such as film, pipe, fibres and components such as gears as part of its solutions offering.   more

Company profile

Victrex Europa GmbH

Langgasse 16
DE 65719 Hofheim (am Taunus)
Tel.: 06192 9649-0
Fax: 06192 9649-48

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