Innovative MEMS microphone (ST)

STMicroelectronics expands its product lineup and introduces a new generation of micromachined audio devices: innovative MEMS microphones. The new product uses Omron 3's sensor technology to dramatically improve the sound quality, reliability and cost-effectiveness of existing and emerging audio equipment for mobile phones and wireless devices and gaming consoles that respond to voice input in various market segments. standard.

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MEMS microphones are a new application that has only recently emerged, competing with traditional electret condenser microphones (ECMs). With successful large-scale wafer fabrication processes, the new micromachined audio devices have similar price points for electret condenser microphones, but with excellent reliability and robustness. More importantly, MEMS microphones are smaller than the most compact ECM and are less susceptible to mechanical vibration, temperature changes and electromagnetic interference, which have audio input for mobile phones as well as laptops, video recorders, digital cameras, and hearing aids or stethoscopes. Equipment is especially important.

To meet the broad needs of users for a better listening experience on mobile devices, the new high-performance MEMS microphones help target applications dramatically improve sound quality, providing more features such as noise determination and filtering, such as noise suppression and directional picking. sound. As the use of mobile phones in noisy and uncontrollable environments continues to increase, the practical value of these features is increasingly prominent, and the sound quality of mobile calls and multi-party calls is reasonably improved, and these functions are realized by integrating multiple MEMS microphones in one device. . ST's digital MEMS microphones feature a unique packaging technology that enables microphone arrays to improve noise reduction.

ST's customers will benefit from ST's and Omron's unique ability to manage the entire supply chain and leading MEMS capacity.

Benedetto Vigna, vice president of the STMicroelectronics division and general manager of the MEMS and Healthcare Products Division, said: "In the past, microphones were the domain of professional audio companies, and it is now the turn of semiconductor MEMS vendors to drive this market growth. Our goal is to bring the MEMS microphone market The scale is expanded by an order of magnitude. Only a large-scale company that has long been committed to the development of MEMS and has a cutting-edge self-operated MEMS production line can promote the rapid growth of this market. By cooperating with Japanese friends, we will promote the growth of the microphone market, just like we are The sports sensor market has achieved the same."

Yoshio Sekiguchi, General Manager of Micro Devices Division, Micro Devices Business Development Headquarters, Omron, said: "Omron is ready to help STMicroelectronics shorten the development cycle and mass production time of cost-competitive high-performance audio devices, accelerate the growth of the MEMS market, and promote new Development of applications such as voice consoles, car voice systems, industrial sound sensors, safety sound sensors and medical telemetry."

Samples of digital MEMS microphones that integrate ST's control circuitry and Omron's micromachined sensors in a single package will be available by the end of the year. The pre-determined price point will drive the use of MEMS microphones in a variety of existing and emerging audio devices in the consumer electronics, automotive, industrial and medical markets.

According to research data released by iSuppli in September 2009, between 2008 and 2013, the revenue of the micro-processing audio device market for consumer electronics and mobile phones will grow at a compound annual growth rate of 18%, and annual shipments will exceed 1 billion. Pieces.

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