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    • 4. 发明公开
    • METHOD FOR MANUFACTURING INSULATED GATE BIPOLAR TRANSISTOR
    • VERFAHREN ZUR HERSTELLUNG EINES BIPOLAREN TRANSISTORS MIT ISOLIERTEM GATE
    • EP3041036A4
    • 2017-01-25
    • EP14839057
    • 2014-08-25
    • CSMC TECHNOLOGIES FAB1 CO LTD
    • ZHONG SHENGRONGZHOU DONGFEIDENG XIAOSHEWANG GENYI
    • H01L21/331H01L29/06H01L29/10H01L29/739
    • H01L29/0623H01L21/761H01L29/045H01L29/0619H01L29/1095H01L29/16H01L29/1608H01L29/161H01L29/20H01L29/401H01L29/407H01L29/408H01L29/66333H01L29/6634H01L29/7395H01L29/7396
    • A method for manufacturing an insulated gate bipolar transistor (100) comprises: providing a substrate (10), forming a field oxide layer (20) on a front surface of the substrate (10), and forming a terminal protection ring (23); performing photoetching and etching on the active region field oxide layer (20) by using an active region photomask, introducing N-type ions into the substrate (10) by using a photoresist as a mask film; depositing and forming a poly silicon gate (31) on the etched substrate (10) of the field oxide layer (20), and forming a protection layer on the polysilicon gate (31); performing junction pushing on an introduction region of the N-type ions, and then forming a carrier enhancement region (41); performing photoetching by using a P well photomask, introducing P-type ions into the carrier enhancement region (41), and performing junction pushing and then forming a P-body region; performing, by means of the polysilicon gate, self-alignment introduction of N-type ions into the P-body region, and performing junction pushing and then forming an N-type heavily doped region; forming sidewalls on two sides of the polysilicon gate, introducing P-type ions into the N-type heavily doped region, and performing junction pushing and then forming a P-type heavily doped region; and removing the protection layer, and then performing introduction and doping of the polysilicon gate. The method reduces a forward voltage drop disposing the carrier enhancement region.
    • 一种绝缘栅双极型晶体管(100)的制造方法,其特征在于,在基板(10)的前表面形成基板(10),形成场氧化物层(20),形成端子保护环(23)。 通过使用有源区光掩模对有源区域氧化物层(20)进行光刻和蚀刻,通过使用光致抗蚀剂作为掩模膜将N型离子引入到衬底(10)中; 在所述场氧化物层(20)的蚀刻衬底(10)上沉积和形成多晶硅栅极(31),并在所述多晶硅栅极(31)上形成保护层; 在N型离子的导入区域上进行接合,然后形成载流子增强区域(41)。 通过使用P阱光掩模进行光蚀刻,将P型离子引入载体增强区域(41)中,并进行结合推压然后形成P体区域; 通过多晶硅栅极进行N型离子的自对准引入到P-体区域,并进行结压并形成N型重掺杂区域; 在所述多晶硅栅极的两侧形成侧壁,将P型离子引入所述N型重掺杂区域中,并执行结推进然后形成P型重掺杂区域; 并去除保护层,然后进行多晶硅栅极的引入和掺杂。 该方法减少了设置载流子增强区域的正向压降。