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GSMBE生长SiGe/Si材料的原位掺杂控制技术
Authors
刘超
孔梅影
+5 more
孙殿照
朱世荣
李建平
高斐
黄大定
Publication date
1 January 2003
Publisher
Abstract
在特定温控下对掺杂气体分子的状态和活性进行控制,建立了一套具有自主知识产权的气源分子束外延工艺生长SiGe/Si材料的原位掺杂控制技术。采用该技术生长的SiGe/Si HBT外延材料,可将硼杂质较好地限制在SiGe合金基区内,并能有效地提高磷烷对N型掺杂的浓度和外延硅层的生长速率,获得了理想N,P型杂质分布的SiGe/Si HBT外延材料
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Last time updated on 15/03/2019