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公开(公告)号:US08994034B2
公开(公告)日:2015-03-31
申请号:US13404411
申请日:2012-02-24
IPC分类号: H01L29/16 , H01L21/04 , H01L29/739 , H01L29/45 , H01L29/66 , H01L29/78 , H01L21/265 , H01L29/08
CPC分类号: H01L29/7802 , H01L21/0485 , H01L21/049 , H01L21/26506 , H01L29/0878 , H01L29/1608 , H01L29/45 , H01L29/66068 , H01L29/7395 , H01L29/7813
摘要: Disclosed is a semiconductor device including: a first electrode formed of a conductive material; a p-type first silicon carbide (SiC) semiconductor section and an n-type second SiC semiconductor section 230, connected to the first electrode, containing carbon (C) such that a surface density distribution has a peak at a first interface with the first electrode.
摘要翻译: 公开了一种半导体器件,包括:由导电材料形成的第一电极; 连接到第一电极的含有碳(C)的p型第一碳化硅(SiC)半导体部分和n型第二SiC半导体部分230,使得表面密度分布在第一界面处具有与第一 电极。
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公开(公告)号:US20130062623A1
公开(公告)日:2013-03-14
申请号:US13404411
申请日:2012-02-24
IPC分类号: H01L29/161 , H01L21/22
CPC分类号: H01L29/7802 , H01L21/0485 , H01L21/049 , H01L21/26506 , H01L29/0878 , H01L29/1608 , H01L29/45 , H01L29/66068 , H01L29/7395 , H01L29/7813
摘要: Disclosed is a semiconductor device including: a first electrode formed of a conductive material; a p-type first silicon carbide (SiC) semiconductor section and an n-type second SiC semiconductor section 230, connected to the first electrode, containing carbon (C) such that a surface density distribution has a peak at a first interface with the first electrode.
摘要翻译: 公开了一种半导体器件,包括:由导电材料形成的第一电极; 连接到第一电极的含有碳(C)的p型第一碳化硅(SiC)半导体部分和n型第二SiC半导体部分230,使得表面密度分布在第一界面处具有与第一 电极。
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公开(公告)号:US20120199846A1
公开(公告)日:2012-08-09
申请号:US13216413
申请日:2011-08-24
申请人: Tatsuo SHIMIZU , Takashi Shinohe
发明人: Tatsuo SHIMIZU , Takashi Shinohe
CPC分类号: H01L29/7802 , H01L21/044 , H01L21/0465 , H01L29/1608 , H01L29/517 , H01L29/66068 , H01L29/7395
摘要: A semiconductor device of an embodiment at least includes: a SiC substrate; and a gate insulating film formed on the SiC substrate, wherein at an interface between the SiC substrate and the gate insulating film, some of elements of both of or one of Si and C in an outermost surface of the SiC substrate are replaced with at least one type of element selected from nitrogen, phosphorus, and arsenic.
摘要翻译: 实施例的半导体器件至少包括:SiC衬底; 以及形成在所述SiC衬底上的栅极绝缘膜,其中在所述SiC衬底和所述栅极绝缘膜之间的界面处,至少在所述SiC衬底的最外表面中的Si和C中的一个或其中的一个元素被替换 一种选自氮,磷和砷的元素。
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公开(公告)号:US08669562B2
公开(公告)日:2014-03-11
申请号:US13404728
申请日:2012-02-24
IPC分类号: H01L29/16 , H01L21/265 , H01L21/336
CPC分类号: H01L29/7806 , H01L21/0485 , H01L21/26506 , H01L21/283 , H01L21/8213 , H01L29/0839 , H01L29/1608 , H01L29/45 , H01L29/4933 , H01L29/4975 , H01L29/66068 , H01L29/665 , H01L29/7395 , H01L29/7802 , H01L29/861 , H01L29/872
摘要: A semiconductor device according to an embodiment includes a silicon carbide, a metal silicide formed on the silicon carbide and including a first layer and a second layer having a carbon ratio lower than that of the first layer, and a metallic electrode formed on the metal silicide, wherein the second layer is formed on the first layer, and the second layer is in contact with the metallic electrode, and an average grain diameter of a metal silicide in the second layer is larger than an average grain diameter of a metal silicide in the first layer.
摘要翻译: 根据实施例的半导体器件包括碳化硅,形成在碳化硅上的金属硅化物,并且包括第一层和碳比低于第一层的碳比的第二层,以及形成在金属硅化物上的金属电极 其中,所述第二层形成在所述第一层上,所述第二层与所述金属电极接触,并且所述第二层中的金属硅化物的平均粒径大于所述第二层中的金属硅化物的平均粒径 第一层
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公开(公告)号:US20130062624A1
公开(公告)日:2013-03-14
申请号:US13404728
申请日:2012-02-24
IPC分类号: H01L29/16 , H01L21/336 , H01L21/265
CPC分类号: H01L29/7806 , H01L21/0485 , H01L21/26506 , H01L21/283 , H01L21/8213 , H01L29/0839 , H01L29/1608 , H01L29/45 , H01L29/4933 , H01L29/4975 , H01L29/66068 , H01L29/665 , H01L29/7395 , H01L29/7802 , H01L29/861 , H01L29/872
摘要: A semiconductor device according to an embodiment includes a silicon carbide, a metal silicide formed on the silicon carbide and including a first layer and a second layer having a carbon ratio lower than that of the first layer, and a metallic electrode formed on the metal silicide, wherein the second layer is formed on the first layer, and the second layer is in contact with the metallic electrode, and an average grain diameter of a metal silicide in the second layer is larger than an average grain diameter of a metal silicide in the first layer.
摘要翻译: 根据实施例的半导体器件包括碳化硅,形成在碳化硅上的金属硅化物,并且包括第一层和碳比低于第一层的碳比的第二层,以及形成在金属硅化物上的金属电极 其中,所述第二层形成在所述第一层上,所述第二层与所述金属电极接触,并且所述第二层中的金属硅化物的平均粒径大于所述第二层中的金属硅化物的平均粒径 第一层
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公开(公告)号:US08367507B1
公开(公告)日:2013-02-05
申请号:US13404779
申请日:2012-02-24
IPC分类号: H01L21/336
CPC分类号: H01L29/7806 , H01L21/0485 , H01L29/0619 , H01L29/0834 , H01L29/086 , H01L29/0878 , H01L29/1095 , H01L29/1608 , H01L29/45 , H01L29/47 , H01L29/6606 , H01L29/66068 , H01L29/7395 , H01L29/7802 , H01L29/868 , H01L29/872
摘要: A method for manufacturing a semiconductor device according to the present embodiment includes the steps of forming a metallic silicide film on an n-type impurity region and a p-type impurity region made of silicon carbide (SiC), performing ion implantation of phosphorous (P) into the metallic silicide film on the n-type impurity region, performing a first thermal treatment, performing ion implantation of aluminum (Al) into the metallic silicide film on the p-type impurity region, and performing a second thermal treatment at a temperature lower than the first thermal treatment.
摘要翻译: 根据本实施例的半导体器件的制造方法包括以下步骤:在n型杂质区上形成金属硅化物膜和由碳化硅(SiC)制成的p型杂质区,进行磷离子注入(P )进入n型杂质区域的金属硅化物膜,进行第一热处理,对p型杂质区域的金属硅化物膜进行铝(Al)的离子注入,并进行第二次热处理 低于第一次热处理。
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公开(公告)号:US08624264B2
公开(公告)日:2014-01-07
申请号:US13213561
申请日:2011-08-19
申请人: Tatsuo Shimizu , Takashi Shinohe
发明人: Tatsuo Shimizu , Takashi Shinohe
IPC分类号: H01L29/15
CPC分类号: H01L29/7802 , H01L21/0485 , H01L29/0878 , H01L29/1608 , H01L29/167 , H01L29/45 , H01L29/66068 , H01L29/7395 , H01L29/861 , H01L29/868 , H01L29/872
摘要: A semiconductor device according to an embodiment includes a first electrode and a first silicon carbide (SiC) semiconductor part. The first electrode uses a conductive material and the first silicon carbide (SiC) semiconductor part is connected to the first electrode, in which at least one element of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba) is contained in an interface portion with the first electrode in such a way that a surface density thereof peaks, and whose conduction type is a p-type.
摘要翻译: 根据实施例的半导体器件包括第一电极和第一碳化硅(SiC)半导体部件。 第一电极使用导电材料,第一碳化硅(SiC)半导体部分连接到第一电极,其中至少一种元素的镁(Mg),钙(Ca),锶(Sr)和钡(Ba )包含在与第一电极的界面部分中,使得其表面密度峰值,并且其导电类型是p型。
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公开(公告)号:US20120228630A1
公开(公告)日:2012-09-13
申请号:US13213561
申请日:2011-08-19
申请人: Tatsuo SHIMIZU , Takashi Shinohe
发明人: Tatsuo SHIMIZU , Takashi Shinohe
IPC分类号: H01L29/78 , H01L21/336
CPC分类号: H01L29/7802 , H01L21/0485 , H01L29/0878 , H01L29/1608 , H01L29/167 , H01L29/45 , H01L29/66068 , H01L29/7395 , H01L29/861 , H01L29/868 , H01L29/872
摘要: A semiconductor device according to an embodiment includes a first electrode and a first silicon carbide (SiC) semiconductor part. The first electrode uses a conductive material and the first silicon carbide (SiC) semiconductor part is connected to the first electrode, in which at least one element of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba) is contained in an interface portion with the first electrode in such a way that a surface density thereof peaks, and whose conduction type is a p-type.
摘要翻译: 根据实施例的半导体器件包括第一电极和第一碳化硅(SiC)半导体部件。 第一电极使用导电材料,第一碳化硅(SiC)半导体部分连接到第一电极,其中至少一种元素的镁(Mg),钙(Ca),锶(Sr)和钡(Ba )包含在与第一电极的界面部分中,使得其表面密度峰值,并且其导电类型是p型。
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公开(公告)号:US09324826B2
公开(公告)日:2016-04-26
申请号:US13216413
申请日:2011-08-24
申请人: Tatsuo Shimizu , Takashi Shinohe
发明人: Tatsuo Shimizu , Takashi Shinohe
IPC分类号: H01L29/786 , H01L29/66 , H01L29/739 , H01L29/78 , H01L21/04 , H01L29/16 , H01L29/51
CPC分类号: H01L29/7802 , H01L21/044 , H01L21/0465 , H01L29/1608 , H01L29/517 , H01L29/66068 , H01L29/7395
摘要: A semiconductor device of an embodiment at least includes: a SiC substrate; and a gate insulating film formed on the SiC substrate, wherein at an interface between the SiC substrate and the gate insulating film, some of elements of both of or one of Si and C in an outermost surface of the SiC substrate are replaced with at least one type of element selected from nitrogen, phosphorus, and arsenic.
摘要翻译: 实施例的半导体器件至少包括:SiC衬底; 以及形成在所述SiC衬底上的栅极绝缘膜,其中在所述SiC衬底和所述栅极绝缘膜之间的界面处,至少在所述SiC衬底的最外表面中的Si和C中的一个或其中的一个元素被替换 一种选自氮,磷和砷的元素。
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公开(公告)号:US09029869B2
公开(公告)日:2015-05-12
申请号:US13034264
申请日:2011-02-24
申请人: Hiroshi Kono , Takashi Shinohe , Chiharu Ota , Makoto Mizukami , Takuma Suzuki , Johji Nishio
发明人: Hiroshi Kono , Takashi Shinohe , Chiharu Ota , Makoto Mizukami , Takuma Suzuki , Johji Nishio
IPC分类号: H01L29/15 , H01L29/739 , H01L29/10 , H01L29/66
CPC分类号: H01L29/7395 , H01L29/1033 , H01L29/66333
摘要: One embodiment of a semiconductor device includes: a silicon carbide substrate including first and second principal surfaces; a first-conductive-type silicon carbide layer on the first principal surface; a second-conductive-type first silicon carbide region at a surface of the first silicon carbide layer; a first-conductive-type second silicon carbide region at the surface of the first silicon carbide region; a second-conductive-type third silicon carbide region at the surface of the first silicon carbide region; a second-conductive-type fourth silicon carbide region formed between the first silicon carbide region and the second silicon carbide region, and having an impurity concentration higher than that of the first silicon carbide region; a gate insulator; a gate electrode formed on the gate insulator; an inter-layer insulator; a first electrode connected to the second silicon carbide region and the third silicon carbide region; and a second electrode on the second principal surface.
摘要翻译: 半导体器件的一个实施例包括:包含第一和第二主表面的碳化硅衬底; 第一主表面上的第一导电型碳化硅层; 在所述第一碳化硅层的表面处的第二导电型第一碳化硅区域; 在第一碳化硅区域的表面处的第一导电型第二碳化硅区域; 在第一碳化硅区域的表面处的第二导电型第三碳化硅区域; 在第一碳化硅区域和第二碳化硅区域之间形成的杂质浓度高于第一碳化硅区域的第二导电型第四碳化硅区域; 栅极绝缘体; 形成在栅极绝缘体上的栅电极; 层间绝缘体; 连接到所述第二碳化硅区域和所述第三碳化硅区域的第一电极; 和在第二主表面上的第二电极。
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