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News Update ;ensor New: :ab New~, Hitachi Cable expands Hall sensors Filtronic Solid State works to ISO 14001 IN r e s p o n s e to a growing d e...

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News Update

;ensor New:

:ab New~,

Hitachi Cable expands Hall sensors

Filtronic Solid State works to ISO 14001

IN r e s p o n s e to a growing d e m a n d for GaAs Hall sensors, Hitachi Cable has a n n o u n c e d that it is increasing its p r o d u c t i o n capacity at the Hitaka Works Semiconductor Factory, Hitachi City, Ibaraki Prefecture, Japan. By March, p r o d u c t i o n capacity will e x c e e d 100 million Hall sensors p e r annum, says Hitachi. Two kinds of Hall sensors are m a n u f a c t u r e d in the world, the GaAs type and the InSb type. Hitachi Cable began mass p r o d u c t i o n o f GaAs Hall sensors seven years ago as an application product from GaAs wafers already being

FILTRONIC Solid State ( N e w t o n Aycliffe, UK) is working towards the ISO 14001 certification o f its environmental managem e n t system. Filtronic Solid State is already ISO 9001 compliant. Filtronic Solid State's Manager of Environmental Health Safety and Facilities, Kerrie Romanow, said that, "We believe that the protection of the environment is an integral part of our operations and w e are p r o u d to a n n o u n c e that formal certification by UL is expected in the first haft of 2000". As an environmentally conscious business, Filtronic Solid State is c o m m i t t e d to the following environmental policy objectives: • Comply with current federal, state and local regulations

manufactured. Hall sensors are widely used for brushless DC m o t o r s operating at r o o m temperature, such as office automation equipment and h o m e e n t e r t a i n m e n t systems. Hitachi Cable is continuously improving GaAs Hall sensors and paving the way for n e w applications. For example, owing to their excellent temperature characteristics, GaAs Hall sensors are n o w being w a t c h e d with great interest for automobile applications. Hitachi Cable; tel: +81-35252-3463; fax: +81-33213-O402.

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UMS evaluates HEMTs for space UNITED Monolithic S e m i c o n d u c t o r s (UMS) based in Orsay, France, is evaluating pHEMT MMIC t e c h n o l o g y m a d e using its PH25 process for space applications. This space-borne evaluation is b e i n g carried out a c c o r d i n g to the European Space A g e n c y (ESA) requirement. T h e reliability ass e s s m e n t plan features high t e m p e r a t u r e storage tests, DC life-tests and RF life-tests, perf o r m e d o n a set o f evaluation test vehicles

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specifically d e f m e d for this p u r p o s e . Results of tests cond u c t e d so far s h o w evidence of a temperature activated wear-out mechanism, a v e r y low sensitivity o f the PH25 during strong RF stress tests and zero sensitivity to hydrogen contamination. UMS says that failure rate calculations for the PH25 process are in line w i t h ESA's p r o g r a m m e requirements. UMS; tel: 33-1-69330308; fax: +33-1-69330309.

III-Vs Review, Vo1.13 No. 1 2000

Briefs...Briefs... MKS Instruments, Inc (Andover, MA, USA), has created two n e w buMness units: Pressure Measurement & Control Products and Materials Delivery & Analysis Products. T I C (Minneapolis, MN, USA) is to take delivery o f an SVTA (Eden Prairie, MN) m u l t i w a f e r MBE system, the first production 6-in system to b e built in the USA.

EPI MBE Products (Saint Paul, MN, USA)

• Minimize release to the air, w a t e r and land • Strive for continual i m p r o v e m e n t of the environmental m a n a g e m e n t system • As appropriate, implem e n t corrective action where past practices have h a r m e d the environment • C o m m i t t e d to prevention of pollution to the e x t e n t feasible • Reduce e n e r g y consumption relative to production • Increase o u r recycling of solid waste • Safeguard the environment for future generations. Filtronic is c o m m i t t e d to the p r o t e c t i o n o f the e n v i r o n m e n t at all levels within the organization, says Romanow. Filtronic Ltd; tel: +1-408562-2832; fax: +1-408970-995O. has l a u n c h e d a downward-looking SUMO cell w h i c h is compatible w i t h Ga or In in a variety o f MBE systems. "Film-Expert" is a n e w FTIR system from O n L i n e Technologies Inc capable o f measuring c o m p l e x thin films o n wafers u p to 300 inm. Uniroyal T e d m o l o gy's opto segment recorded sales of US$147 000 in the fourth quarter but r e c o r d e d a loss due to start-up costs o f its Tampa fab.