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1. 发明授权

US5650641A Semiconductor device having group III nitride compound and enabling control of emission color, and flat display comprising such device 失效
标题翻译：具有III族氮化物化合物并且能够控制发光颜色的半导体器件，以及包括这种器件的平面显示器
公开(公告)号：US5650641A
公开(公告)日：1997-07-22
申请号：US522110
申请日：1995-08-31
申请人： Michinari Sassa , Masayoshi Koike , Katsuhide Manabe , Norikatsu Koide , Hisaki Kato , Naoki Shibata , Makoto Asai , Shinya Asami
发明人： Michinari Sassa , Masayoshi Koike , Katsuhide Manabe , Norikatsu Koide , Hisaki Kato , Naoki Shibata , Makoto Asai , Shinya Asami
IPC分类号： H01L33/02 , H01L33/32 , H01L33/00
CPC分类号： H01L33/325 , H01L33/025
摘要： A light-emitting semiconductor device (100) suitable for use in multi-color flat panel displays includes a sapphire substrate (1), an AlN buffer layer (2), a silicon (Si) doped GaN n.sup.+ -layer (3) of high carrier (n-type) concentration, a Si-doped (Al.sub.x2 Ga.sub.1 -x.sub.2).sub.y2 In.sub.1-2 N n.sup.+ -layer (4) of high carrier (n-type) concentration, a zinc (Zn) and Si-doped p-type (Al.sub.x1 Ga.sub.1-x1).sub.y1 In.sub.1-y1 N emission layer (5), and a Mg-doped (Al.sub.x2 Ga.sub.1-x2).sub.y2 In.sub.1-y2 N p-layer (6). The AlN layer (2) has a 500 .ANG. thickness. The GaN n.sup.+ -layer (3) is about a 2.0 .mu.m thick and has a 2.times.10.sup.18 /cm.sup.3 electron concentration. The n.sup.+ -layer (4) is about a 2.0 .mu.m in thickness and has a 2.times.10.sup.18 /cm.sup.3 electron concentration. The emission layer (5) is about 0.5 .mu.m thick. The p-layer 6 is about 1.0 .mu.m thick and has a 2.times.10.sup.17 /cm.sup.3 hole concentration. Nickel electrodes (7, 8) are connected to the p-layer (6) and n.sup.+ -layer (4), respectively. A groove (9) electrically insulates the electrodes (7, 8). Green light emission is obtained by this constitution. Further, only doping Zn of 5.times.10.sup.19 /cm.sup.3 into the emission layer (5) enables red light emission.
摘要翻译：适用于多色平板显示器的发光半导体器件（100）包括蓝宝石衬底（1），AlN缓冲层（2），掺杂硅（Si）的GaN n +层（3）载流子（n型）浓度，高载流子（n型）浓度的Si掺杂（Alx2Ga1-x2）y2In1-2Nn +层（4），锌（Zn）和掺杂Si的p型（Al x Ga 1 -x1）y1In1-y1N发射层（5）和Mg掺杂（Alx2Ga1-x2）y2In1-y2N p层（6）。 AlN层（2）具有500厚度。 GaN n +层（3）的厚度约为2.0μm，电子浓度为2×10 18 / cm 3。 n +层（4）的厚度约为2.0μm，电子浓度为2×10 18 / cm 3。发射层（5）厚约0.5μm。 p层6的厚度约为1.0μm，空穴浓度为2×10 17 / cm 3。镍电极（7,8）分别连接到p层（6）和n +层（4）。一个凹槽（9）使电极（7,8）电绝缘。通过这种结构获得绿色发光。此外，仅向发射层（5）掺杂5×10 19 / cm 3的Zn使得能够发红光。

2. 发明授权

US06984536B2 Method for manufacturing a gallium nitride group compound semiconductor 失效
标题翻译：氮化镓基化合物半导体的制造方法
公开(公告)号：US06984536B2
公开(公告)日：2006-01-10
申请号：US10052347
申请日：2002-01-23
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L21/20
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：本文公开了（1）使用氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，其中n层n 型氮化镓化合物半导体（Al x Ga 1-x N）是包括低载流子浓度的n层和n < 高载流子浓度的+层，前者与绝缘氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻， ; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，包括相对较低的含有p型杂质的低杂质浓度的i L层低浓度和高浓度的含有p型杂质的高杂质浓度的i H +层，前者与n层相邻; （3）具有上述两个特征的发光半导体器件和（4）制造n型氮化镓系化合物半导体层的方法（Al x Ga Ga 1-x N），通过气相外延从有机金属化合物具有受控的导电性，通过以可控混合比将含硅气体和其它原料气体一起供给到一起。

3. 发明授权

US06472690B1 Gallium nitride group compound semiconductor 失效
标题翻译：氮化镓族化合物半导体
公开(公告)号：US06472690B1
公开(公告)日：2002-10-29
申请号：US09677789
申请日：2000-10-02
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L3300
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：这里公开的是（1）使用其中n型氮化镓化合物半导体（Al x Ga 1-x N）的n层是双层结构的氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，包括低载流子浓度的n层和高载流子浓度的n +层，前者与绝缘的氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层含有较高浓度的p型杂质的高杂质浓度，前者与n层相邻; （3）具有上述特征的发光半导体器件和（4）由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体（Al x Ga 1-x N）的层的制造方法，通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。

4. 发明授权

US5278433A Light-emitting semiconductor device using gallium nitride group compound with double layer structures for the n-layer and/or the i-layer 失效
标题翻译：使用具有用于n层和/或i层的双层结构的氮化镓基化合物的发光半导体器件
公开(公告)号：US5278433A
公开(公告)日：1994-01-11
申请号：US926022
申请日：1992-08-07
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L33/00 , H01L33/02 , H01L33/32
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N) in which the n-layer of n-type gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N) is of double-layer structure including an n-layer of low carrier concentration and an n.sup.+ -layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an i.sub.L -layer of low impurity concentration containing p-type impurities in comparatively low concentration and an i.sub.H -layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：这里公开的是（1）使用其中n型氮化镓化合物半导体（Al x Ga 1-x N）的n层是双层结构的氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，包括低载流子浓度的n层和高载流子浓度的n +层，前者与绝缘的氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层含有较高浓度的p型杂质的高杂质浓度，前者与n层相邻; （3）具有上述特征的发光半导体器件和（4）由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体（Al x Ga 1-x N）的层的制造方法，通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。

5. 发明授权

US06830992B1 Method for manufacturing a gallium nitride group compound semiconductor 失效
标题翻译：氮化镓基化合物半导体的制造方法
公开(公告)号：US06830992B1
公开(公告)日：2004-12-14
申请号：US09677781
申请日：2000-10-02
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L2120
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：这里公开的是（1）使用其中n型氮化镓化合物半导体（Al x Ga 1-x N）的n层是双层结构的氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，包括低载流子浓度的n层和高载流子浓度的n +层，前者与绝缘氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层含有较高浓度的p型杂质的高杂质浓度，前者与n层相邻; （3）具有上述特征的发光半导体器件和（4）由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体（Al x Ga 1-x N）的层的制造方法，通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。

6. 发明授权

US06607595B1 Method for producing a light-emitting semiconductor device 失效
标题翻译：发光半导体器件的制造方法
公开(公告)号：US06607595B1
公开(公告)日：2003-08-19
申请号：US09677788
申请日：2000-10-02
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hasimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hasimoto , Isamu Akasaki
IPC分类号： C30B2514
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlXGa1-xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1-XN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1-xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1-xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：本文公开了（1）一种使用其中n型氮化镓化合物半导体（Al x Ga 1-X N）的n层是双层结构的氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，包括低载流子浓度的n层和高载流子浓度的n +层，前者与绝缘的氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层含有较高浓度的p型杂质的高杂质浓度，前者与n层相邻; （3）具有上述特征的发光半导体器件和（4）由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体（Al x Ga 1-x N）的层的制造方法，通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。

7. 发明授权

US06472689B1 Light emitting device 失效
标题翻译：发光装置
公开(公告)号：US06472689B1
公开(公告)日：2002-10-29
申请号：US09677787
申请日：2000-10-02
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L3300
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
摘要翻译：这里公开的是（1）使用其中n型氮化镓化合物半导体（Al x Ga 1-x N）的n层是双层结构的氮化镓化合物半导体（Al x Ga 1-x N）的发光半导体器件，包括低载流子浓度的n层和高载流子浓度的n +层，前者与绝缘的氮化镓化合物半导体（Al x Ga 1-x N）的i层相邻; （2）具有上述类似结构的发光半导体器件，其中i层是双层结构，其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层含有较高浓度的p型杂质的高杂质浓度，前者与n层相邻; （3）具有上述特征的发光半导体器件和（4）由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体（Al x Ga 1-x N）的层的制造方法，通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。

8. 发明授权

US06249012B1 Light emitting semiconductor device using gallium nitride group compound 失效
标题翻译：使用氮化镓基化合物的发光半导体器件
公开(公告)号：US06249012B1
公开(公告)日：2001-06-19
申请号：US08956950
申请日：1997-10-23
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L3300
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： A semiconductor device having an n-type layer of gallium nitride that is doped with silicon and has a resistively ranging from 3×10−1 &OHgr;cm to 8×10−3 &OHgr;cm or a carrier concentration ranging from 6×1016/cm3 to 3×1018/cm3.
摘要翻译：一种半导体器件，其具有掺杂硅的n型氮化镓层，其电阻范围为3×10 -1Ω〜8×10 -3Ω/ cm或载流子浓度为6×10 16 / cm 3〜3×10 18 / cm 3。

9. 发明授权

US5733796A Light-emitting semiconductor device using gallium nitride group compound 失效
标题翻译：使用氮化镓族化合物的发光半导体装置
公开(公告)号：US5733796A
公开(公告)日：1998-03-31
申请号：US556232
申请日：1995-11-09
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L33/00 , H01L33/02 , H01L33/32 , H01L21/20
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： A light-emitting semiconductor device using a gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N) having an i.sub.L -layer of insulating gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N, inclusive of x=0) containing a low concentration of p-type impurities. An i.sub.H -layer of insulating gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N, inclusive of x=0) containing a high concentration of p-type impurities is adjacent to the i.sub.L -layer. An n-layer of n-type gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N, inclusive of x=0) of low carrier concentration is adjacent to the i.sub.L -layer. An n.sup.+ -layer of n-type gallium nitride compound semiconductor (Al.sub.x Ga.sub.1-x N, inclusive of x=0) of high carrier concentration doped with n-type impurities is adjacent to the n-layer.
摘要翻译：使用具有含有低浓度p型杂质的绝缘氮化镓化合物半导体（Al x Ga 1-x N，包括x = 0）的iL层的氮化镓系化合物半导体（Al x Ga 1-x N）的发光半导体装置。含有高浓度p型杂质的绝缘氮化镓化合物半导体（Al x Ga 1-x N，包括x = 0）的iH层与iL层相邻。低载流子浓度的n型氮化镓化合物半导体（Al x Ga 1-x N，包括x = 0）的n层与iL层相邻。 n型氮化镓化合物半导体（Al x Ga 1-x N，包括x = 0）的n +层与n型杂质掺杂的高载流子浓度相邻。

10. 发明授权

US06593599B1 Light-emitting semiconductor device using gallium nitride group compound 失效
公开(公告)号：US06593599B1
公开(公告)日：2003-07-15
申请号：US09417778
申请日：1999-10-14
申请人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
发明人： Katsuhide Manabe , Akira Mabuchi , Hisaki Kato , Michinari Sassa , Norikatsu Koide , Shiro Yamazaki , Masafumi Hashimoto , Isamu Akasaki
IPC分类号： H01L3300
CPC分类号： H01L33/32 , H01L33/007 , H01L33/025
摘要： Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.

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