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process for epitaxialen grow a gallium arsenide layer on a gallium arsenide substrate

机译:外延生长在砷化镓衬底上生长砷化镓层的方法

摘要

In the prodn. of a semiconductor crystal from the liquid phase, a gas phase material (I) other than hydrogen and inert gas is allowed to flow, in addn. to a gas atmos. (II) for the liq. phase growth technique, at least immediately before bringing a semiconductor substrate into contact with a liq. melt. Pref. (I) is (a halogen cpd. of) an element present in the substrate or the melt, a H halide or a halogen cpd. of a dopant for the epitaxial layer. The substrate and melt contain AIIIBV cpd(s). In particular, the substrate is GaAs and (II) is hydrogen contg. 7 x 10-5 to 2 x 10-3 mole % arsenic trichloride as (I). Method cleans the substrate surface. It is useful for various semiconductor materials, esp. AIIIBV cpds., e.g. GaAs.
机译:在产品中在液相中形成半导体晶体的过程中,除了氢气和惰性气体之外,还允许气相材料(I)流动。到煤气的气氛。 (二)液量。相生长技术,至少在使半导体衬底与液体接触之前。熔化。首选(I)是存在于基材或熔体中的元素(卤素的cpd。),卤化氢或卤素的cpd。外延层的掺杂剂的数量。基材和熔体包含AIIIBV cpd。特别地,衬底是GaAs,而(II)是氢。 (I)为7 x 10-5至2 x 10-3摩尔%的三氯化砷。方法清洁基材表面。特别适用于各种半导体材料。 AIIIBV cpds,例如砷化镓

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