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Wafer bonding of gallium arsenide on sapphire

✍ Scribed by P. Kopperschmidt; G. Kästner; S. Senz; D. Hesse; U. Gösele


Publisher
Springer
Year
1997
Tongue
English
Weight
434 KB
Volume
64
Category
Article
ISSN
1432-0630

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Coulometric determination of arsenic in
✍ M. Cullen; J.M.P. Mearns 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 390 KB

The determination of small variations in the stoichiometry of undoped, semi-insulating gallium arsenide can be achieved by using constant current coulometly. Samples taken from a wafer are etched in HF, dissolved in NaOH-peroxide solution, then treated with a citric acid buffer. To convert the arsen