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公开(公告)号：US20110037068A1
公开(公告)日：2011-02-17
申请号：US12846585
申请日：2010-07-29
IPC分类号： H01L29/786 , H01L21/44
CPC分类号： H01L27/3262 , G06F1/163 , H01L21/02614 , H01L27/1218 , H01L27/1222 , H01L27/1225 , H01L29/04 , H01L29/24 , H01L29/66969 , H01L29/78603 , H01L29/7869 , H01L29/78696 , H04B1/16
摘要： One object is to provide a semiconductor device with a structure which enables reduction in parasitic capacitance sufficiently between wirings. In a bottom-gate type thin film transistor including a stacked layer of a first layer which is a metal thin film oxidized partly or entirely and an oxide semiconductor layer, the following oxide insulating layers are formed together: an oxide insulating layer serving as a channel protective layer which is over and in contact with a part of the oxide semiconductor layer overlapping with a gate electrode layer; and an oxide insulating layer which covers a peripheral portion and a side surface of the stacked oxide semiconductor layer.
摘要翻译： 一个目的是提供具有能够在布线之间充分降低寄生电容的结构的半导体器件。 在包括作为部分或全部氧化的金属薄膜的第一层的堆叠层和氧化物半导体层的底栅型薄膜晶体管中，形成以下氧化物绝缘层：作为沟道的氧化物绝缘层 与氧化物半导体层的与栅电极层重叠的部分结合并接触的保护层; 以及覆盖层叠的氧化物半导体层的周边部分和侧面的氧化物绝缘层。
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22.发明授权公开(公告)号：US08841163B2
公开(公告)日：2014-09-23
申请号：US13399369
申请日：2012-02-17
申请人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
发明人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
IPC分类号： H01L21/00 , H01L29/10 , H01L21/324 , H01L21/28 , H01L29/04 , H01L29/66 , H01L29/786
CPC分类号： H01L21/465 , H01L21/02565 , H01L21/28176 , H01L21/324 , H01L21/477 , H01L29/04 , H01L29/045 , H01L29/66742 , H01L29/66969 , H01L29/78603 , H01L29/78606 , H01L29/78618 , H01L29/78642 , H01L29/78648 , H01L29/7869 , H01L29/78696
摘要： A semiconductor device for high power application in which a novel semiconductor material having high mass productivity is provided. An oxide semiconductor film is formed, and then, first heat treatment is performed on the exposed oxide semiconductor film in order to reduce impurities such as moisture or hydrogen in the oxide semiconductor film. Next, in order to further reduce impurities such as moisture or hydrogen in the oxide semiconductor film, oxygen is added to the oxide semiconductor film by an ion implantation method, an ion doping method, or the like, and after that, second heat treatment is performed on the exposed oxide semiconductor film.
摘要翻译： 一种用于大功率应用的半导体器件，其中提供了具有高质量生产率的新型半导体材料。 形成氧化物半导体膜，然后对暴露的氧化物半导体膜进行第一热处理，以便减少氧化物半导体膜中的杂质如水分或氢。 接下来，为了进一步减少氧化物半导体膜中的杂质，例如水分或氢气，通过离子注入法，离子掺杂法等将氧添加到氧化物半导体膜中，之后，第二热处理为 在暴露的氧化物半导体膜上进行。
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公开(公告)号：US08796078B2
公开(公告)日：2014-08-05
申请号：US12787757
申请日：2010-05-26
申请人： Toshinari Sasaki , Hiroki Ohara , Junichiro Sakata
发明人： Toshinari Sasaki , Hiroki Ohara , Junichiro Sakata
IPC分类号： H01L21/336 , H01L21/786
CPC分类号： H01L29/66969 , H01L21/02164 , H01L21/02565 , H01L21/30604 , H01L29/45 , H01L29/78618 , H01L29/7869 , H01L29/78696
摘要： An object is to provide a highly reliable semiconductor device including a thin film transistor having stable electric characteristics. In addition, another object is to manufacture a highly reliable semiconductor device at low cost with high productivity. In a method for manufacturing a semiconductor device including a thin film transistor including an oxide semiconductor layer as a channel formation region, the oxide semiconductor layer is heated under a nitrogen atmosphere to lower its resistance, thereby forming a low-resistance oxide semiconductor layer. Further, resistance of a region of the low-resistance oxide semiconductor layer, which is overlapped with a gate electrode layer, is selectively increased, thereby forming a high-resistance oxide semiconductor layer. Resistance of the oxide semiconductor layer is increased by forming a silicon oxide film in contact with the oxide semiconductor layer by a sputtering method.
摘要翻译： 目的在于提供一种具有稳定电特性的薄膜晶体管的高度可靠的半导体装置。 此外，另一个目的是以高生产率以低成本制造高度可靠的半导体器件。 在包括具有作为沟道形成区域的氧化物半导体层的薄膜晶体管的半导体器件的制造方法中，在氮气气氛下加热氧化物半导体层以降低其电阻，从而形成低电阻氧化物半导体层。 此外，选择性地增加与栅电极层重叠的低电阻氧化物半导体层的区域的电阻，从而形成高电阻氧化物半导体层。 通过溅射法形成与氧化物半导体层接触的氧化硅膜，可提高氧化物半导体层的电阻。
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公开(公告)号：US08609478B2
公开(公告)日：2013-12-17
申请号：US12826007
申请日：2010-06-29
IPC分类号： H01L21/84
CPC分类号： H01L21/02664 , H01L21/02565 , H01L27/1225 , H01L29/66969 , H01L29/78606 , H01L29/78618 , H01L29/7869
摘要： It is an object to provide a highly reliable semiconductor device which includes a thin film transistor having stable electric characteristics. It is another object to manufacture a highly reliable semiconductor device at lower cost with high productivity. In a method for manufacturing a semiconductor device which includes a thin film transistor where a semiconductor layer including a channel formation region using an oxide semiconductor layer, a source region, and a drain region are formed using an oxide semiconductor layer, heat treatment for reducing impurities such as moisture (heat treatment for dehydration or dehydrogenation) is performed so as to improve the purity of the oxide semiconductor layer.
摘要翻译： 本发明的目的是提供一种高度可靠的半导体器件，其包括具有稳定电特性的薄膜晶体管。 另一个目的是以更高的生产率以更低的成本制造高可靠性的半导体器件。 在制造半导体器件的方法中，该半导体器件包括薄膜晶体管，其中使用氧化物半导体层形成包括使用氧化物半导体层的沟道形成区域，源极区域和漏极区域的半导体层，用于减少杂质的热处理 例如水分（用于脱水或脱氢的热处理）以提高氧化物半导体层的纯度。
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公开(公告)号：US08377744B2
公开(公告)日：2013-02-19
申请号：US12957437
申请日：2010-12-01
申请人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
发明人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
CPC分类号： H01L21/465 , H01L21/02565 , H01L21/28176 , H01L21/324 , H01L21/477 , H01L29/04 , H01L29/045 , H01L29/66742 , H01L29/66969 , H01L29/78603 , H01L29/78606 , H01L29/78618 , H01L29/78642 , H01L29/78648 , H01L29/7869 , H01L29/78696
摘要： A semiconductor device for high power application in which a novel semiconductor material having high mass productivity is provided. An oxide semiconductor film is formed, and then, first heat treatment is performed on the exposed oxide semiconductor film in order to reduce impurities such as moisture or hydrogen in the oxide semiconductor film. Next, in order to further reduce impurities such as moisture or hydrogen in the oxide semiconductor film, oxygen is added to the oxide semiconductor film by an ion implantation method, an ion doping method, or the like, and after that, second heat treatment is performed on the exposed oxide semiconductor film.
摘要翻译： 一种用于大功率应用的半导体器件，其中提供了具有高质量生产率的新型半导体材料。 形成氧化物半导体膜，然后对暴露的氧化物半导体膜进行第一热处理，以便减少氧化物半导体膜中的杂质如水分或氢。 接下来，为了进一步减少氧化物半导体膜中的杂质，例如水分或氢气，通过离子注入法，离子掺杂法等将氧添加到氧化物半导体膜中，之后第二热处理为 在暴露的氧化物半导体膜上进行。
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公开(公告)号：US08216878B2
公开(公告)日：2012-07-10
申请号：US12826015
申请日：2010-06-29
IPC分类号： H01L21/00
CPC分类号： H01L29/66969 , H01L27/1225 , H01L27/124 , H01L29/24 , H01L29/42356 , H01L29/42384 , H01L29/66742 , H01L29/78606 , H01L29/78618 , H01L29/7869 , H01L29/78696
摘要： It is an object to provide a highly reliable semiconductor device which includes a thin film transistor having stable electric characteristics. It is another object to manufacture a highly reliable semiconductor device at lower cost with high productivity. In a method for manufacturing a semiconductor device which includes a thin film transistor where a semiconductor layer having a channel formation region, a source region, and a drain region are formed using an oxide semiconductor layer, heat treatment (heat treatment for dehydration or dehydrogenation) is performed so as to improve the purity of the oxide semiconductor layer and reduce impurities such as moisture. Moreover, the oxide semiconductor layer subjected to the heat treatment is slowly cooled under an oxygen atmosphere.
摘要翻译： 本发明的目的是提供一种高度可靠的半导体器件，其包括具有稳定电特性的薄膜晶体管。 另一个目的是以更高的生产率以更低的成本制造高可靠性的半导体器件。 在包括薄膜晶体管的半导体器件的制造方法中，使用氧化物半导体层形成具有沟道形成区域，源极区域和漏极区域的半导体层，进行热处理（脱水或脱氢的热处理） 以提高氧化物半导体层的纯度并减少诸如水分的杂质。 此外，在氧气氛下缓慢冷却经受热处理的氧化物半导体层。
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27.发明授权公开(公告)号：US09224609B2
公开(公告)日：2015-12-29
申请号：US12957746
申请日：2010-12-01
申请人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
发明人： Shunpei Yamazaki , Junichiro Sakata , Hiroki Ohara
IPC分类号： H01L21/336 , H01L21/225 , H01L21/28 , H01L21/324 , H01L29/66 , H01L29/786
CPC分类号： H01L29/7831 , H01L21/28176 , H01L21/324 , H01L29/4966 , H01L29/66969 , H01L29/78642 , H01L29/7869
摘要： A semiconductor device for high power application in which a novel semiconductor material having high mass productivity is provided. An oxide semiconductor film is formed, and then, first heat treatment is performed on the exposed oxide semiconductor film in order to reduce impurities such as moisture or hydrogen in the oxide semiconductor film. Next, in order to further reduce impurities such as moisture or hydrogen in the oxide semiconductor film, oxygen is added to the oxide semiconductor film by an ion implantation method, an ion doping method, or the like, and after that, second heat treatment is performed on the exposed oxide semiconductor film.
摘要翻译： 一种用于大功率应用的半导体器件，其中提供了具有高质量生产率的新型半导体材料。 形成氧化物半导体膜，然后对暴露的氧化物半导体膜进行第一热处理，以便减少氧化物半导体膜中的杂质如水分或氢。 接下来，为了进一步减少氧化物半导体膜中的杂质，例如水分或氢气，通过离子注入法，离子掺杂法等将氧添加到氧化物半导体膜中，之后，第二热处理为 在暴露的氧化物半导体膜上进行。
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公开(公告)号：US08592251B2
公开(公告)日：2013-11-26
申请号：US13467408
申请日：2012-05-09
IPC分类号： H01L21/00
CPC分类号： H01L29/78696 , G02F1/133528 , G02F1/1339 , G02F1/134336 , G02F1/136286 , G02F1/1368 , G02F1/167 , G02F2001/133302 , G02F2001/133531 , G02F2201/121 , G02F2201/123 , G09G3/3677 , G09G2310/0286 , G09G2310/08 , H01L21/02107 , H01L21/02554 , H01L21/02565 , H01L21/02631 , H01L21/02672 , H01L21/324 , H01L21/477 , H01L21/67115 , H01L27/1225 , H01L27/127 , H01L27/3262 , H01L29/66969 , H01L29/7869
摘要： An object is to provide a semiconductor device having stable electric characteristics in which an oxide semiconductor is used. An oxide semiconductor layer is subjected to heat treatment for dehydration or dehydrogenation treatment in a nitrogen gas or an inert gas atmosphere such as a rare gas (e.g., argon or helium) or under reduced pressure and to a cooling step for treatment for supplying oxygen in an atmosphere of oxygen, an atmosphere of oxygen and nitrogen, or the air (having a dew point of preferably lower than or equal to −40° C., still preferably lower than or equal to −50° C.) atmosphere. The oxide semiconductor layer is thus highly purified, whereby an i-type oxide semiconductor layer is formed. A semiconductor device including a thin film transistor having the oxide semiconductor layer is manufactured.
摘要翻译： 目的在于提供一种使用氧化物半导体的具有稳定电特性的半导体器件。 在氮气或惰性气体气氛（例如氩气或氦气）或减压下对氧化物半导体层进行脱水或脱氢处理的热处理，并进行用于在 氧气和氮气气氛或空气（露点优选低于或等于-40℃，更优选低于或等于-50℃）气氛。 因此，氧化物半导体层被高度纯化，从而形成i型氧化物半导体层。 制造包括具有氧化物半导体层的薄膜晶体管的半导体器件。
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公开(公告)号：US08557641B2
公开(公告)日：2013-10-15
申请号：US12826000
申请日：2010-06-29
CPC分类号： H01L21/02664 , H01L21/02565 , H01L27/1225 , H01L29/66765 , H01L29/66969 , H01L29/78618 , H01L29/7869 , H01L29/78696
摘要： An object is to provide a high reliable semiconductor device including a thin film transistor having stable electric characteristics. In a method for manufacturing a semiconductor device including a thin film transistor in which an oxide semiconductor film is used for a semiconductor layer including a channel formation region, heat treatment (which is for dehydration or dehydrogenation) is performed so as to improve the purity of the oxide semiconductor film and reduce impurities such as moisture. Besides impurities such as moisture existing in the oxide semiconductor film, heat treatment causes reduction of impurities such as moisture existing in the gate insulating layer and those in interfaces between the oxide semiconductor film and films which are provided over and below the oxide semiconductor film and are in contact with the oxide semiconductor film.
摘要翻译： 目的是提供一种包括具有稳定电特性的薄膜晶体管的高可靠性半导体器件。 在包括使用氧化物半导体膜用于包括沟道形成区域的半导体层的薄膜晶体管的半导体器件的制造方法中，进行热处理（其用于脱水或脱氢），以提高纯度 氧化物半导体膜，并且减少诸如水分的杂质。 除了存在于氧化物半导体膜中的水分等杂质外，热处理会导致存在于栅极绝缘层中的杂质，氧化物半导体膜和氧化物半导体膜之间的氧化物半导体膜与膜之间的界面中的杂质的减少， 与氧化物半导体膜接触。
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公开(公告)号：US08518740B2
公开(公告)日：2013-08-27
申请号：US12828468
申请日：2010-07-01
CPC分类号： H01L29/7869 , H01L21/67109 , H01L21/67115 , H01L27/1225
摘要： An object is to provide a highly reliable semiconductor device including a thin film transistor with stable electric characteristics. In a method for manufacturing a semiconductor device including a thin film transistor in which an oxide semiconductor film is used for a semiconductor layer including a channel formation region, impurities such as moisture existing in the gate insulating layer are reduced before formation of the oxide semiconductor film, and then heat treatment (heat treatment for dehydration or dehydrogenation) is performed so as to improve the purity of the oxide semiconductor film and reduce impurities such as moisture. After that, slow cooling is performed in an oxygen atmosphere. Besides impurities such as moisture existing in the gate insulating layer and the oxide semiconductor film, impurities such as moisture existing at interfaces between the oxide semiconductor film and upper and lower films provided in contact therewith are reduced.
摘要翻译： 本发明的目的是提供一种具有稳定电特性的薄膜晶体管的高度可靠的半导体器件。 在制造包括薄膜晶体管的半导体器件的方法中，其中氧化物半导体膜用于包括沟道形成区域的半导体层，在形成氧化物半导体膜之前，存在于栅极绝缘层中的诸如水分的杂质减少 ，然后进行热处理（脱水或脱氢的热处理），以提高氧化物半导体膜的纯度并减少诸如水分的杂质。 之后，在氧气氛中进行缓慢冷却。 除了存在于栅极绝缘层和氧化物半导体膜中的杂质等杂质以外，氧化物半导体膜与与其接触的上下膜之间的界面处存在的诸如水分的杂质减少。
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