公开(公告)号：US20080283968A1

公开(公告)日：2008-11-20

申请号：US11579645

申请日：2005-03-30

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

IPC分类号： H01L29/20 ,  C03B9/00

CPC分类号： C30B9/12 ,  C30B11/00 ,  C30B29/403 ,  H01L21/02389 ,  H01L21/02392 ,  H01L21/0242 ,  H01L21/02458 ,  H01L21/0254 ,  H01L21/02625 ,  H01L33/0075 ,  H01S5/32341

摘要： A method of manufacturing group III-nitride semiconductor crystal includes the steps of accommodating an alloy containing at least a group III-metal element and an alkali metal element in a reactor, introducing a nitrogen-containing substance in the reactor, dissolving the nitrogen-containing substance in an alloy melt in which the alloy has been melted, and growing group III-nitride semiconductor crystal is provided. The group III-nitride semiconductor crystal attaining a small absorption coefficient and an efficient method of manufacturing the same, as well as a group III-nitride semiconductor device attaining high light emission intensity can thus be provided.

摘要翻译： 一种制造III族氮化物半导体晶体的方法包括以下步骤：在反应器中容纳至少含有III族金属元素和碱金属元素的合金，将含氮物质引入反应器中，将含氮物质 提供合金熔融的合金中的物质，以及生长III族氮化物半导体晶体。 因此可以提供获得小吸收系数的III族氮化物半导体晶体及其制造方法，以及获得高发光强度的III族氮化物半导体器件。

公开(公告)号：US20080022921A1

公开(公告)日：2008-01-31

申请号：US11628253

申请日：2005-04-15

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

IPC分类号： C30B29/38 ,  C30B11/06 ,  C30B9/10 ,  H01L33/00

CPC分类号： C30B29/403 ,  C30B9/00 ,  C30B11/00 ,  H01L33/0075 ,  H01L33/32

摘要： A method of manufacturing a group III-nitride crystal substrate including the steps of introducing an alkali-metal-element-containing substance, a group III-element-containing substance and a nitrogen-element-containing substance into a reactor, forming a melt containing at least the alkali metal element, the group III-element and the nitrogen element in the reactor, and growing group III-nitride crystal from the melt, and characterized by handling the alkali-metal-element-containing substance in a drying container in which moisture concentration is controlled to at most 1.0 ppm at least in the step of introducing the alkali-metal-element-containing substance into the reactor is provided. A group III-nitride crystal substrate attaining a small absorption coefficient and the method of manufacturing the same, as well as a group III-nitride semiconductor device can thus be provided.

摘要翻译： 一种制造III族氮化物晶体基板的方法，包括以下步骤：将含碱金属元素的物质，含III族元素的物质和含氮元素的物质引入反应器中，形成含有 至少反应器中的碱金属元素，III族元素和氮元素，以及来自熔体的生长III族氮化物晶体，其特征在于在干燥容器中处理含碱金属元素的物质，其中 至少在将含碱金属元素的物质引入反应器的步骤中，水分浓度被控制在至多1.0ppm。 可以提供获得小吸收系数的III族氮化物晶体基板及其制造方法，以及III族氮化物半导体器件。

公开(公告)号：US07288151B2

公开(公告)日：2007-10-30

申请号：US10999338

申请日：2004-11-29

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

IPC分类号： C30B11/14

CPC分类号： C30B29/403 ,  C30B11/00 ,  C30B11/04 ,  C30B29/406

摘要： There is provided a method of manufacturing a group-III nitride crystal in which a nitrogen plasma is brought into contact with a melt containing a group-III element and an alkali metal to grow the group-III nitride crystal. Furthermore, there is also provided a method of manufacturing a group-III nitride crystal in which the group-III nitride crystal is grown on a substrate placed in a melt containing a group-III element and an alkali metal, with a minimal distance between a surface of the melt and a surface of the substrate set to be at most 50 mm.

摘要翻译： 提供了一种制造III族氮化物晶体的方法，其中使氮等离子体与含有III族元素和碱金属的熔体接触以生长III族氮化物晶体。 此外，还提供了一种III族氮化物晶体的制造方法，其中III族氮化物晶体在放置在含有III族元素和碱金属的熔体中的基板上生长，其中 熔体的表面和基板的表面设定为至多50mm。

公开(公告)号：US20070296061A1

公开(公告)日：2007-12-27

申请号：US11578242

申请日：2005-03-30

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota ,  Seiji Nakahata

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota ,  Seiji Nakahata

IPC分类号： H01L29/20 ,  C03B17/00

CPC分类号： C30B9/08 ,  C30B9/00 ,  C30B11/00 ,  C30B11/06 ,  C30B29/403

摘要： A method of manufacturing a group III-nitride crystal substrate including the steps of introducing an alkali-metal-element-containing substance, a group III-element-containing substance and a nitrogen-element-containing substance into a reactor, forming a melt containing at least the alkali metal element, the group III-element and the nitrogen element in the reactor, and growing group III-nitride crystal from the melt, and characterized by handling the alkali-metal-element-containing substance in a drying container in which moisture concentration is controlled to at most 1.0 ppm at least in the step of introducing the alkali-metal-element-containing substance into the reactor is provided. A group III-nitride crystal substrate attaining a small absorption coefficient and the method of manufacturing the same, as well as a group III-nitride semiconductor device can thus be provided.

摘要翻译： 一种制造III族氮化物晶体基板的方法，包括以下步骤：将含碱金属元素的物质，含III族元素的物质和含氮元素的物质引入反应器中，形成含有 至少反应器中的碱金属元素，III族元素和氮元素，以及来自熔体的生长III族氮化物晶体，其特征在于在干燥容器中处理含碱金属元素的物质，其中 至少在将含碱金属元素的物质引入反应器的步骤中，水分浓度被控制在至多1.0ppm。 可以提供获得小吸收系数的III族氮化物晶体基板及其制造方法，以及III族氮化物半导体器件。

公开(公告)号：US08038794B2

公开(公告)日：2011-10-18

申请号：US11628253

申请日：2005-04-15

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

IPC分类号： C30B29/38

CPC分类号： C30B29/403 ,  C30B9/00 ,  C30B11/00 ,  H01L33/0075 ,  H01L33/32

摘要： A method of manufacturing a group III-nitride crystal substrate including the steps of introducing an alkali-metal-element-containing substance, a group III-element-containing substance and a nitrogen-element-containing substance into a reactor, forming a melt containing at least the alkali metal element, the group III-element and the nitrogen element in the reactor, and growing group III-nitride crystal from the melt, and characterized by handling the alkali-metal-element-containing substance in a drying container in which moisture concentration is controlled to at most 1.0 ppm at least in the step of introducing the alkali-metal-element-containing substance into the reactor is provided. A group III-nitride crystal substrate attaining a small absorption coefficient and the method of manufacturing the same, as well as a group III-nitride semiconductor device can thus be provided.

摘要翻译： 一种制造III族氮化物晶体基板的方法，包括以下步骤：将含碱金属元素的物质，含III族元素的物质和含氮元素的物质引入反应器中，形成含有 至少反应器中的碱金属元素，III族元素和氮元素，以及来自熔体的生长III族氮化物晶体，其特征在于在干燥容器中处理含碱金属元素的物质，其中 至少在将含碱金属元素的物质引入反应器的步骤中，水分浓度被控制在至多1.0ppm。 可以提供获得小吸收系数的III族氮化物晶体基板及其制造方法，以及III族氮化物半导体器件。

公开(公告)号：US20050153471A1

公开(公告)日：2005-07-14

申请号：US10999338

申请日：2004-11-29

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

IPC分类号： C30B29/38 ,  C30B11/00 ,  C30B11/12 ,  C30B19/02 ,  C30B29/40 ,  H01L21/208 ,  H01L21/00

CPC分类号： C30B29/403 ,  C30B11/00 ,  C30B11/04 ,  C30B29/406

摘要： There is provided a method of manufacturing a group-III nitride crystal in which a nitrogen plasma is brought into contact with a melt containing a group-III element and an alkali metal to grow the group-III nitride crystal. Furthermore, there is also provided a method of manufacturing a group-III nitride crystal in which the group-III nitride crystal is grown on a substrate placed in a melt containing a group-III element and an alkali metal, with a minimal distance between a surface of the melt and a surface of the substrate set to be at most 50 mm.

摘要翻译： 提供了一种制造III族氮化物晶体的方法，其中使氮等离子体与含有III族元素和碱金属的熔体接触以生长III族氮化物晶体。 此外，还提供了一种III族氮化物晶体的制造方法，其中III族氮化物晶体在放置在含有III族元素和碱金属的熔体中的基板上生长，其中 熔体的表面和基板的表面设定为至多50mm。

公开(公告)号：US07905958B2

公开(公告)日：2011-03-15

申请号：US11579645

申请日：2005-03-30

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Seiji Nakahata ,  Ryu Hirota

IPC分类号： C30B21/02

CPC分类号： C30B9/12 ,  C30B11/00 ,  C30B29/403 ,  H01L21/02389 ,  H01L21/02392 ,  H01L21/0242 ,  H01L21/02458 ,  H01L21/0254 ,  H01L21/02625 ,  H01L33/0075 ,  H01S5/32341

摘要： A method of manufacturing group III-nitride semiconductor crystal includes the steps of accommodating an alloy containing at least a group III-metal element and an alkali metal element in a reactor, introducing a nitrogen-containing substance in the reactor, dissolving the nitrogen-containing substance in an alloy melt in which the alloy has been melted, and growing group III-nitride semiconductor crystal is provided. The group III-nitride semiconductor crystal attaining a small absorption coefficient and an efficient method of manufacturing the same, as well as a group III-nitride semiconductor device attaining high light emission intensity can thus be provided.

摘要翻译： 一种制造III族氮化物半导体晶体的方法包括以下步骤：在反应器中容纳至少含有III族金属元素和碱金属元素的合金，将含氮物质引入反应器中，将含氮物质 提供合金熔融的合金中的物质，以及生长III族氮化物半导体晶体。 因此可以提供获得小吸收系数的III族氮化物半导体晶体及其制造方法，以及获得高发光强度的III族氮化物半导体器件。

公开(公告)号：US20100059717A1

公开(公告)日：2010-03-11

申请号：US12514836

申请日：2007-11-14

申请人： Yusuke Mori ,  Takatomo Sasaki ,  Fumio Kawamura ,  Masashi Yoshimura ,  Minoru Kawahara ,  Yasuo Kitaoka ,  Masanori Morishita

发明人： Yusuke Mori ,  Takatomo Sasaki ,  Fumio Kawamura ,  Masashi Yoshimura ,  Minoru Kawahara ,  Yasuo Kitaoka ,  Masanori Morishita

IPC分类号： C30B9/00 ,  C01B21/06 ,  H01B1/24

CPC分类号： C30B29/406 ,  C30B19/02 ,  Y10T117/1024

摘要： A method for producing a GaN crystal capable of achieving at least one of the prevention of nucleation and the growth of a high-quality non-polar surface is provided. The production method of the present invention is a method for producing a GaN crystal in a melt containing at least an alkali metal and gallium, including an adjustment step of adjusting the carbon content of the melt, and a reaction step of causing the gallium and nitrogen to react with each other. According to the production method of the present invention, nucleation can be prevented, and as shown in FIG. 4, a non-polar surface can be grown.

摘要翻译： 提供一种能够实现防止成核和高质量非极性表面生长中的至少一种的GaN晶体的制造方法。 本发明的制造方法是在至少含有碱金属和镓的熔融物中制造GaN晶体的方法，包括调整熔融物的碳含量的调整工序，以及使镓和氮的反应工序 互相反应。 根据本发明的制造方法，能够防止成核，如图1所示， 如图4所示，可以生长非极性表面。

公开(公告)号：US07507292B2

公开(公告)日：2009-03-24

申请号：US10522488

申请日：2003-06-30

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Kunimichi Omae ,  Tomoya Iwahashi ,  Masanori Morishita

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Kunimichi Omae ,  Tomoya Iwahashi ,  Masanori Morishita

IPC分类号： C30B11/06

CPC分类号： C30B19/02 ,  C30B9/10 ,  C30B9/12 ,  C30B29/403

摘要： A method for producing a Group III element nitride single crystal, which comprises reacting at least one Group III element selected from the group consisting of gallium(Ga), aluminum(Al) and indium(In) with nitrogen(N) in a mixed flux of sodium(Na) and at least one of an alkali metal (except Na) and an alkaline earth metal. The method allows the production, with a good yield, of the single crystal of a group III element nitride which is transparent, is reduced in the density of dislocation, has a bulk form, and is large. In particular, a gallium nitride single crystal produced by the method has high quality and takes a large and transparent bulk form, and thus has a high practical value.

摘要翻译： 一种III族元素氮化物单晶的制造方法，其特征在于，在混合助熔剂中使至少一种选自镓（Ga），铝（Al）和铟（In）的III族元素与氮（N） 的钠（Na）和至少一种碱金属（除了Na）和碱土金属之外。 该方法允许以良好的产率生产透明的III族元素氮化物的单晶，其位错密度降低，具有散装形式，并且大。 特别地，通过该方法制造的氮化镓单晶具有高质量并且具有大而透明的散装形式，因此具有很高的实用价值。

公开(公告)号：US08187507B2

公开(公告)日：2012-05-29

申请号：US12514836

申请日：2007-11-14

申请人： Yusuke Mori ,  Takatomo Sasaki ,  Fumio Kawamura ,  Masashi Yoshimura ,  Minoru Kawahara ,  Yasuo Kitaoka ,  Masanori Morishita

发明人： Yusuke Mori ,  Takatomo Sasaki ,  Fumio Kawamura ,  Masashi Yoshimura ,  Minoru Kawahara ,  Yasuo Kitaoka ,  Masanori Morishita

IPC分类号： H01B1/06 ,  C01G15/00

CPC分类号： C30B29/406 ,  C30B19/02 ,  Y10T117/1024

摘要： A method for producing a GaN crystal capable of achieving at least one of the prevention of nucleation and the growth of a high-quality non-polar surface is provided. The production method of the present invention is a method for producing a GaN crystal in a melt containing at least an alkali metal and gallium, including an adjustment step of adjusting the carbon content of the melt, and a reaction step of causing the gallium and nitrogen to react with each other. According to the production method of the present invention, nucleation can be prevented, and as shown in FIG. 4, a non-polar surface can be grown.

摘要翻译： 提供一种能够实现防止成核和高质量非极性表面生长中的至少一种的GaN晶体的制造方法。 本发明的制造方法是在至少含有碱金属和镓的熔融物中制造GaN晶体的方法，包括调整熔融物的碳含量的调整工序，以及使镓和氮的反应工序 互相反应。 根据本发明的制造方法，能够防止成核，如图1所示， 如图4所示，可以生长非极性表面。