31 March 1997 00:00 [Source: ICB]
Riedel-de Haën, an AlliedSignal subsidiary, is to invest DM10m ($5.8m) in the production of electronic chemicals.
The company, based in Sealze, Germany, will use newly developed purification technology to produce ultra-high purity ammonia, ammonium fluoride, hydrofluoric acid and buffered oxide etchants.
The company has begun construction of a plant at Seelze and expects the plant to come onstream some time during next year.
The ultra-high purity chemicals will be aimed at the growing semiconductor industry.
Riedel-de Haën has already produced first batches of the ultra-pure chemicals at pilot-plant scale.
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