Bosch’s Akustica enters analog MEMS sector with 2-chip offering

March 28, 2012 — Akustica, known for its monolithic single-chip digital micro electro mechanical systems (MEMS) devices, introduced its first analog MEMS microphone for mobile handsets, the AKU340.

The analog, 2-chip MEMS design enables more flexibility in product design, said Marcie Weinstein, PhD,  marketing strategist at Akustica. It uses a metal-lid design instead of an LCP substrate seen on Akustica’s digital MEMS. An acoustic port is available on the bottom of the package. The 2-chip design has larger silicon areas, but actually comes in a smaller package than their current single-chip product.

The AKU340 boasts a 63dB signal-to-noise ratio (SNR) and good low-frequency recording with a reduction in sensitivity of less than 5dB at 50Hz. It offers sensitivity matching of -38dBV/Pa +/- 2dB between microphones.

Akustica designs its own MEMS and ASIC die to maintain low power consumption, a smaller package size, and low noise interference between the chips. Akustica uses established surface-micromachining MEMS technology from its parent company Bosch for the device. MEMS components are fully designed and manufactured in-house at Bosch. The metal lid enables RF and EM immunity, and the package is designed for the higher performance requirements of mobile electronics.

While the single-chip digital CMOS MEMS (monolithic ASIC + MEMS) products are primarily used in laptops, the new design targets mobile handsets with faster new product introductions and more price sensitivity. The pin count and footprint (3.35 x 2.5 x 1.0mm) are compatible with second sourcing for the high-volume applications into which Akustica will sell the devices. Akustica foresees using both these technologies in the future — expanding its range in the MEMS market.

The AKU340 will be in mass production in Q3 2012.

Akustica is a wholly owned subsidiary of the Bosch Group and a top supplier of silicon microphone products. The Bosch Group is a leading global supplier of technology and services. Learn more about Akustica at www.akustica.com.

View recent issues of the MEMS Direct newsletter

POST A COMMENT

Easily post a comment below using your Linkedin, Twitter, Google or Facebook account. Comments won't automatically be posted to your social media accounts unless you select to share.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

LIVE NEWS FEED

NEW PRODUCTS

Versatile high throughput SEM from JEOL
11/04/2015JEOL's new JSM-IT100 is the latest addition to its InTouchScope Series of Scanning Electron Microscopes....
Entegris expands CMP filtration technology solutions and research, analytical and manufacturing capabilities
09/04/2015The Entegris filter platform using NMB media now includes the Planargard bulk, Solaris point...
DCG Systems extends circuit edit capability to the 10nm node with the introduction of OptiFIB Taipan
09/02/2015DCG Systems today announces the release of the OptiFIB Taipan circuit edit solution for the most adv...