发明公开
- 专利标题: Method of producing a bipolar transistor
- 专利标题(中): 制造双极晶体管的方法
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申请号: EP82305023.2申请日: 1982-09-23
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公开(公告)号: EP0076105A2公开(公告)日: 1983-04-06
- 发明人: Goto, Hiroshi
- 申请人: FUJITSU LIMITED
- 申请人地址: 1015, Kamikodanaka, Nakahara-ku Kawasaki-shi, Kanagawa 211 JP
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: 1015, Kamikodanaka, Nakahara-ku Kawasaki-shi, Kanagawa 211 JP
- 代理机构: George, Sidney Arthur (GB)
- 优先权: JP151987/81 19810928
- 主分类号: H01L21/00
- IPC分类号: H01L21/00 ; H01L21/76 ; H01L29/08
摘要:
A method of producing a bipolar transistor comprises the steps of forming a base region (41), forming a high-melting-point metal layer (42) of a base electrode on the base region (41), forming a first insulating layer (43) on the metal layer (42), and selectively etching the first insulating layer (43) and the metal layer (42) to form an opening (45). A second insulating layer (46) is formed on the sides of the first insulating layer (43) and the metal layer (42) within the opening (45), the second insulating layer (46) defining an emitter-providing region. impurities are introduced into the base region (41) by using the second insulating layer (43) as a mask to form an emitter region (49). An emitter electrode (51) and the base electrode (42) are arranged in a like multilayer structure.
公开/授权文献
- EP0076105B1 Method of producing a bipolar transistor 公开/授权日:1986-12-10
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