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公开(公告)号:US4885614A
公开(公告)日:1989-12-05
申请号:US216522
申请日:1988-07-08
IPC分类号: H01L21/20 , H01L21/203 , H01L21/205 , H01L21/26 , H01L29/165 , H01L29/737 , H01L29/778 , H01L31/0312 , H01L31/105 , H01L31/18
CPC分类号: H01L31/1812 , H01L21/02381 , H01L21/02529 , H01L21/02532 , H01L21/0262 , H01L21/02631 , H01L29/165 , H01L29/7378 , H01L29/7781 , H01L31/0312 , H01L31/105 , Y02E10/50
摘要: The present invention discloses a semiconductor device comprising a semiconductor layer being made of monocrystalline silicon or silicon-germanium alloy and a semiconductor layer being made of silicon-germanium-carbon alloy formed thereon, wherein the two layers form a heterojunction therebetween. In such a device, no lattice mismatch occurs between the layers or even if lattice mismatch occurs, it is only slight, so that the silicon-germanium-carbon alloy layer is in no danger of causing misfit dislocation therein.
摘要翻译: 本发明公开了一种半导体器件,其包括由单晶硅或硅 - 锗合金制成的半导体层和由其上形成的硅 - 锗 - 碳合金制成的半导体层,其中两层在其间形成异质结。 在这种器件中,层之间不发生晶格失配,或者即使发生晶格失配,仅仅是微小的,所以硅 - 锗 - 碳合金层不会引起其中的失配位错的危险。