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									                                           Press Release
                                           Isabellenhütte 03 / 2010

                                           D-Dillenburg, August 2010

Flexible battery sensor ICs for efficient battery management systems in all vehicle

Isabellenhütte Heusler and austriamicrosystem s enter into cooperation

Isabellenhütte is one of the pioneers in current and voltage measurement of 12 V
vehicle batteries. In 2002, the company introduced the ISA-AS IC, the world’s first all-
in-one measuring system for current, voltage and temperature for electronic battery
management. Together with the Austrian company austriamicrosystems, which is an
international leader in the field of design and production of high-performance analogue
ICs, the company has produced numerous ICs for 12 V vehicle systems in recent
This longstanding successful working relationship has now led to a cooperation
agreement being signed by bot h companies to foc us their expertise. This will provide
them with advantages for future development work and drive market penetration. Both
austriamicrosystems and Isabellenhütte have already introduced sustainable solutions
for measuring the current of 12 V and 24 V batteries and also high -voltage systems for
hybrid and electric vehicles and will now jointly continue developing their products.

“We feel that by joining forces with austriamicrosystems in our development work, we
are increasing our opportunities for developing and producing flexible and adaptable
sensor systems”, says Peter Müller, Managing director of Isabellenhütte Heusler
GmbH & Co. KG.

“We have found a renowned partner in Isabellenhütte, whose precision sensor
solutions are highly regarded in the automotive industry. We anticipate that demand
for ICs will continue to rise, as battery management is a key technology for hybrid and
electric vehicles ”, explains Bernhard Czar, Marketing Director of the Automotive
division of austriamicrosystems AG.

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About Isabellenhütte Heusler
The developments of Isabellenhütte are technological benchmarks: In 1889, the
company invented Manganin, a copper-manganese-nickel alloy, which is being used
to this day in precision resistors for current measurement as it has excellent
properties. In 1987, Isabellenhütte was the first enterprise in the world to produce
SMD mOhm current measuring shunts. Today, it belongs to the leading manufacturers
of low-impedanc e precision and power resistors. In 2002, Isabellenhütte used its
knowledge on current measuring technology for developing the world’s first high-
precision measurement system for current, voltage and temperature in vehicles based
on resistance material.
The company’s roots stretch back over 500 years in metal smelting and processing.
First recorded in 1482, the company has been owned by the Heusler family since
1827. Around 500 staff are employed at the company headquarters and production
works in Dillenburg (Hesse).

About austramicrosystem s
austriamicrosystems is a global leader in the design and manufacture of high
performance analogue ICs (integrated circuits) and combines almost 30 years of
system know-how and experience in analogue design with its own state-of-the-art
production and testing facilities. austriamicrosystems leverages its significant
expertise in low power consumption and high accuracy to provide best -in-class
analogue ICs for customers and the market. austriamicrosystems focuses on the
areas of power management, sensors and sensor interfac es and mobile infotainment
in its markets Consumer & Communications, Industry & Medical and Automotive,
complemented by its Full Service Foundry activities. austriamicrosystems employs
more than 1,000 people globally and is listed at SIX Swiss Exchange in Zurich (ticker
symbol: AMS).

                            Reprints free of charge
    Please provide a file copy to Wassenberg in case of reprints or editorial

                                  Thank you!

Company contact:                        Press contact:
Jens Hartmann                           Michaela Wassenberg
Sales Manager ISAscale                  Wassenberg Public Relations für
Presicison Measurement                  Industrie und Technologie GmbH
Isabellenhütte Heusler GmbH & Co. KG    Rollnerstr. 43
Eibacher Weg 3 - 5                      D-90408 Nürnberg
D-35683 Dillenburg                      Tel.: +49 911 / 598 398-0
Tel.: +49 2771 / 934-250                Fax: +49 911 / 598 398-18
Fax: +49 2771 / 2 30 30       

                                 Please vi sit us:
                 Isabellenhütte is exhibitor at electronica 2010
                               hall B6, booth 436


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