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公开(公告)号:US4874712A
公开(公告)日:1989-10-17
申请号:US249401
申请日:1988-09-26
申请人: Myung S. Kim , Hyun S. Kang , Soon K. Lim , Hee K. Park
发明人: Myung S. Kim , Hyun S. Kang , Soon K. Lim , Hee K. Park
IPC分类号: H01L29/73 , H01L21/266 , H01L21/331 , H01L29/732
CPC分类号: H01L29/66272 , H01L21/266 , Y10S148/01
摘要: Present invention relates to the fabrication method of the bipolar transistor.With this method the emitter of high-concentrated n-type is contacted closely to the extrinsic base of high-concentrated p-type.This structure is obtained by making the emitter of the bipolar transistor be self- aligned by the side wall under-cut of the nitride layer using double layers of the low temperature oxide and the nitride layer.
摘要翻译: 本发明涉及双极晶体管的制造方法。 采用这种方法,高浓度n型发射极与高浓度p型的外在基极紧密接触。 通过使用双层低温氧化物和氮化物层,通过使氮化物层的侧壁被切割来使双极晶体管的发射极自对准,从而获得这种结构。