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公开(公告)号:US09455148B2
公开(公告)日:2016-09-27
申请号:US14433191
申请日:2012-12-07
申请人: Fumihito Masuoka , Katsumi Nakamura , Takao Kachi
发明人: Fumihito Masuoka , Katsumi Nakamura , Takao Kachi
IPC分类号: H01L21/265 , H01L29/10 , H01L29/861 , H01L29/06 , H01L21/225 , H01L29/66 , H01L29/16 , H01L29/20
CPC分类号: H01L21/26513 , H01L21/2252 , H01L21/26586 , H01L29/0615 , H01L29/0619 , H01L29/0638 , H01L29/1095 , H01L29/1608 , H01L29/2003 , H01L29/6606 , H01L29/6609 , H01L29/66204 , H01L29/861
摘要: An insulating film (2) is formed on a main surface of a semiconductor substrate (1) that includes an active region and a termination region. The insulating film (2) in the active region is etched to form an opening (3). The insulating film (2) is used as a mask and an impurity is implanted into the semiconductor substrate (1) in a direction tilted by 20° or more from a direction normal to the main surface of the semiconductor substrate (1) while rotating the semiconductor substrate (1) to form a diffusion layer (7) in the active region. The diffusion layer (7) extends wider than the opening (3) up to below the insulating film (2) on the termination region side.
摘要翻译: 绝缘膜(2)形成在包括有源区和端接区的半导体衬底(1)的主表面上。 有源区域中的绝缘膜(2)被蚀刻以形成开口(3)。 绝缘膜(2)用作掩模,并且在从半导体衬底(1)的主表面垂直的方向上倾斜20°或更大的方向将杂质注入到半导体衬底(1)中,同时旋转 半导体衬底(1)以在有源区中形成扩散层(7)。 扩散层(7)在开口(3)上延伸到终端区域侧的绝缘膜(2)的下方。
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公开(公告)号:US20150255290A1
公开(公告)日:2015-09-10
申请号:US14433191
申请日:2012-12-07
申请人: Fumihito Masuoka , Katsumi Nakamura , Takao Kachi
发明人: Fumihito Masuoka , Katsumi Nakamura , Takao Kachi
IPC分类号: H01L21/265 , H01L29/10 , H01L29/06
CPC分类号: H01L21/26513 , H01L21/2252 , H01L21/26586 , H01L29/0615 , H01L29/0619 , H01L29/0638 , H01L29/1095 , H01L29/1608 , H01L29/2003 , H01L29/6606 , H01L29/6609 , H01L29/66204 , H01L29/861
摘要: An insulating film (2) is formed on a main surface of a semiconductor substrate (1) that includes an active region and a termination region. The insulating film (2) in the active region is etched to form an opening (3). The insulating film (2) is used as a mask and an impurity is implanted into the semiconductor substrate (1) in a direction tilted by 20° or more from a direction normal to the main surface of the semiconductor substrate (1) while rotating the semiconductor substrate (1) to form a diffusion layer (7) in the active region. The diffusion layer (7) extends wider than the opening (3) up to below the insulating film (2) on the termination region side.
摘要翻译: 绝缘膜(2)形成在包括有源区和端接区的半导体衬底(1)的主表面上。 有源区域中的绝缘膜(2)被蚀刻以形成开口(3)。 绝缘膜(2)用作掩模,并且在从半导体衬底(1)的主表面垂直的方向上倾斜20°或更大的方向将杂质注入到半导体衬底(1)中,同时旋转 半导体衬底(1)以在有源区中形成扩散层(7)。 扩散层(7)在开口(3)上延伸到终端区域侧的绝缘膜(2)的下方。
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公开(公告)号:US20130093065A1
公开(公告)日:2013-04-18
申请号:US13525478
申请日:2012-06-18
申请人: Takao KACHI , Yasuhiro YOSHIURA , Fumihito MASUOKA
发明人: Takao KACHI , Yasuhiro YOSHIURA , Fumihito MASUOKA
IPC分类号: H01L29/02
CPC分类号: H01L29/861 , H01L29/32 , H01L29/36
摘要: A semiconductor device includes: an N-type drift layer; a P-type anode layer above the N-type drift layer; an N-type cathode layer below the N-type drift layer; a first short lifetime layer between the N-type drift layer and the P-type anode layer; and a second short lifetime layer between the N-type drift layer and the N-type cathode layer. A carrier lifetime in the first and second short lifetime layers is shorter than a carrier lifetime in the N-type drift layer. A carrier lifetime in the N-type cathode layer is longer than the carrier lifetime in the N-type drift layer.
摘要翻译: 一种半导体器件包括:N型漂移层; N型漂移层上方的P型阳极层; N型漂移层下面的N型阴极层; 在N型漂移层和P型阳极层之间的第一短寿命层; 以及N型漂移层和N型阴极层之间的第二短寿命层。 第一和第二短寿命层中的载流子寿命短于N型漂移层中的载流子寿命。 N型阴极层中的载流子寿命长于N型漂移层中的载流子寿命。
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公开(公告)号:US08698250B2
公开(公告)日:2014-04-15
申请号:US13525478
申请日:2012-06-18
申请人: Takao Kachi , Yasuhiro Yoshiura , Fumihito Masuoka
发明人: Takao Kachi , Yasuhiro Yoshiura , Fumihito Masuoka
IPC分类号: H01L21/70
CPC分类号: H01L29/861 , H01L29/32 , H01L29/36
摘要: A semiconductor device includes: an N-type drift layer; a P-type anode layer above the N-type drift layer; an N-type cathode layer below the N-type drift layer; a first short lifetime layer between the N-type drift layer and the P-type anode layer; and a second short lifetime layer between the N-type drift layer and the N-type cathode layer. A carrier lifetime in the first and second short lifetime layers is shorter than a carrier lifetime in the N-type drift layer. A carrier lifetime in the N-type cathode layer is longer than the carrier lifetime in the N-type drift layer.
摘要翻译: 一种半导体器件包括:N型漂移层; N型漂移层上方的P型阳极层; N型漂移层下面的N型阴极层; 在N型漂移层和P型阳极层之间的第一短寿命层; 以及N型漂移层和N型阴极层之间的第二短寿命层。 第一和第二短寿命层中的载流子寿命短于N型漂移层中的载流子寿命。 N型阴极层中的载流子寿命长于N型漂移层中的载流子寿命。
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