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    • 9. 发明专利
    • Doped semiconductor single crystal
    • DOPED SEMICONDUCTOR SINGLE CRYSTAL
    • JP2013126943A
    • 2013-06-27
    • JP2013022575
    • 2013-02-07
    • Freiberger Compound Materials Gmbhフライベルガー・コンパウンド・マテリアルズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングFreiberger Compound Materials Gmbh
    • KRETZER ULRICHEICHLER STEFANBUNGER THOMAS
    • C30B29/40C30B11/00
    • C30B11/04C30B11/00C30B11/002C30B11/14C30B29/40C30B29/42
    • PROBLEM TO BE SOLVED: To provide a group III-V semiconductor single crystal having high electrical conductivity while at the same time providing high process security, yield and quality, and to provide a method for producing the same.SOLUTION: The group III-V semiconductor single crystal comprises: the concentration of an electrical conductivity-generating dopant of at least about 1×10atoms/cm, and the concentration of an impurity, which is generated during the production process of the single crystal, of at most about 5×10atoms/cm, wherein the group III-V semiconductor single crystal has electrical conductivity of at least about 250 S/cm, and/or resistivity of at most about 4×10Ωcm. In another aspect, the group III-V semiconductor single crystal having a diameter of at least about 100 mm and comprises: the concentration of an electrical conductivity-generating dopant of at least about 1.0×10atoms/cm, the charge carrier concentration of at least about 1.0×10cm, wherein the hole mobility, determined according to ASTM F76-86, for the case of charge carrier concentration of 1.0 to 1.2×10cmis higher than 2,100 cm/Vs.
    • 要解决的问题:提供具有高导电性的III-V族半导体单晶,同时提供高的工艺安全性,产率和质量,并提供其制造方法。 解决方案:III-V族半导体单晶包括:至少约1×10 -6原子/ cm的导电产生掺杂剂的浓度 3 ,并且在单晶的生产过程中产生的杂质浓度至多为约5×10 18 原子/ cm 3,其中III-V族半导体单晶具有至少约250S / cm的电导率和/或至多约4×10 6Ω/ SP POS =“POST”> - 3 Ωcm。 在另一方面,直径为至少约100mm的III-V族半导体单晶包括:至少约1.0×10 10的导电性产生掺杂剂的浓度, / SP> atoms / cm 3 ,电荷载流子浓度至少约为1.0×10 18 POST“> 3 ,其中根据ASTM F76-86确定的空穴迁移率,对于载流子浓度为1.0至1.2×10 18 - 3 高于2,100厘米 2 / Vs。 版权所有(C)2013,JPO&INPIT