公开(公告)号：US20130105811A1

公开(公告)日：2013-05-02

申请号：US13637555

申请日：2010-12-15

申请人： Yuji Ando ,  Takashi Inoue ,  Kazuki Ota ,  Yasuhiro Okamoto ,  Tatsuo Nakayama ,  Kazuomi Endo

发明人： Yuji Ando ,  Takashi Inoue ,  Kazuki Ota ,  Yasuhiro Okamoto ,  Tatsuo Nakayama ,  Kazuomi Endo

IPC分类号： H01L29/78 ,  H01L29/66 ,  H01L29/20

CPC分类号： H01L29/78 ,  H01L21/8252 ,  H01L29/2003 ,  H01L29/4232 ,  H01L29/66477 ,  H01L29/7785 ,  H01L29/7787

摘要： The present invention provides a field effect transistor which can achieve both of a high threshold voltage and a low on-state resistance, a method for producing the same, and an electronic device. In the field effect transistor, each of a buffer layer 112, a channel layer 113, a barrier layer 114, and a spacer layer 115 is formed of a group-III nitride semiconductor, and each of the upper surfaces thereof is a group-III atomic plane that is perpendicular to a (0001) crystal axis. The lattice-relaxed buffer layer 112, the channel layer 113 having a compressive strain, and the barrier layer 114 having a tensile strain, and the spacer layer 115 having a compressive strain are laminated on a substrate 100 in this order. The gate insulating film 14 is arranged on the spacer layer 115. The gate electrode 15 is arranged on the gate insulating film 14. The source electrode 161 and the drain electrode 162 are electrically connected to the channel layer 113 directly or via another component.

摘要翻译： 本发明提供了能够实现高阈值电压和低通态电阻两者的场效应晶体管，其制造方法和电子器件。 在场效应晶体管中，由III族氮化物半导体形成缓冲层112，沟道层113，势垒层114和间隔层115，其上表面分别为III族 原子平面垂直于（0001）晶轴。 栅格弛豫缓冲层112，具有压缩应变的沟道层113和具有拉伸应变的阻挡层114以及具有压缩应变的间隔层115以此顺序层压在基板100上。 栅极绝缘膜14布置在间隔层115上。栅电极15布置在栅极绝缘膜14上。源极161和漏极162直接或经由另一个部件电连接到沟道层113。

公开(公告)号：US20110260217A1

公开(公告)日：2011-10-27

申请号：US13139789

申请日：2009-12-11

申请人： Yasuhiro Okamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Kazuki Ota ,  Takashi Inoue ,  Hironobu Miyamoto ,  Kazuomi Endo

发明人： Yasuhiro Okamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Kazuki Ota ,  Takashi Inoue ,  Hironobu Miyamoto ,  Kazuomi Endo

IPC分类号： H01L29/778 ,  H01L21/335

CPC分类号： H01L29/402 ,  H01L29/0619 ,  H01L29/2003 ,  H01L29/407 ,  H01L29/41766 ,  H01L29/4236 ,  H01L29/7787

摘要： There is provided a semiconductor apparatus capable of achieving both a reverse blocking characteristic and a low on-resistance. The semiconductor apparatus includes a first semiconductor layer including a channel layer, a source electrode formed on the first semiconductor layer, a drain electrode formed at a distance from the source electrode on the first semiconductor layer, and a gate electrode formed between the source electrode and the drain electrode on the first semiconductor layer. The drain electrode includes a first drain region where reverse current between the first semiconductor layer and the first drain region is blocked, and a second drain region formed at a greater distance from the gate electrode than the first drain region, where a resistance between the first semiconductor layer and the second drain region is lower than a resistance between the first semiconductor layer and the first drain region.

摘要翻译： 提供了能够实现反向阻挡特性和低导通电阻的半导体装置。 半导体装置包括：第一半导体层，包括沟道层，形成在第一半导体层上的源电极，在第一半导体层上与源极间隔一定距离处形成的漏电极，以及形成在源电极和 第一半导体层上的漏电极。 漏电极包括第一漏极区，其中第一半导体层和第一漏极区之间的反向电流被阻挡，以及形成在比栅极电极比第一漏极区更远的距离处的第二漏区， 半导体层和第二漏极区域比第一半导体层和第一漏极区域之间的电阻低。

公开(公告)号：US08772785B2

公开(公告)日：2014-07-08

申请号：US13141448

申请日：2009-11-26

申请人： Yasuhiro Okamoto ,  Hironobu Miyamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Takashi Inoue ,  Kazuki Ota ,  Kazuomi Endo

发明人： Yasuhiro Okamoto ,  Hironobu Miyamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Takashi Inoue ,  Kazuki Ota ,  Kazuomi Endo

IPC分类号： H01L29/15

CPC分类号： H01L29/872 ,  H01L29/08 ,  H01L29/2003 ,  H01L29/475

摘要： A semiconductor device includes semiconductor layers, an anode electrode, and a cathode electrode. The semiconductor layers include a composition change layer, the anode electrode is electrically connected to one of principal surfaces of the composition change layer through a formation of a Schottky junction between the anode electrode and a part of the semiconductor layers, the cathode electrode is electrically connected to the other of the principal surfaces of the composition change layer through a formation of a junction between the cathode electrode and another part of the semiconductor layers, the anode electrode and the cathode electrode are capable of applying a voltage to the composition change layer in a direction perpendicular to the principal surface.

摘要翻译： 半导体器件包括半导体层，阳极电极和阴极电极。 半导体层包括组成变化层，阳极电极通过在阳极电极和一部分半导体层之间形成肖特基结而与组合物变化层的主表面电连接，阴极电连接 通过在阴极电极和另一部分半导体层之间形成接合而形成组合物变化层的另一个主表面，阳极电极和阴极电极能够向组合物变化层施加电压 方向垂直于主表面。

公开(公告)号：US20110297954A1

公开(公告)日：2011-12-08

申请号：US13141448

申请日：2009-11-26

申请人： Yasuhiro Okamoto ,  Hironobu Miyamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Takashi Inoue ,  Kazuki Ota ,  Kazuomi Endo

发明人： Yasuhiro Okamoto ,  Hironobu Miyamoto ,  Yuji Ando ,  Tatsuo Nakayama ,  Takashi Inoue ,  Kazuki Ota ,  Kazuomi Endo

IPC分类号： H01L29/20 ,  H01L21/329

CPC分类号： H01L29/872 ,  H01L29/08 ,  H01L29/2003 ,  H01L29/475

摘要： [Problem to be Solved] Provided is a semiconductor device in which the trade-off between the pressure resistance and the on-state resistance is improved and the performance is improved.[Solution] The semiconductor device 1 of the present invention comprises semiconductor layers 20 to 23, an anode electrode 12, and a cathode electrode 13, wherein the semiconductor layers include a composition change layer 23, the anode electrode 12 is electrically connected to one of principal surfaces of the composition change layer through a formation of a Schottky junction between the anode electrode 12 and a part of the semiconductor layers, the cathode electrode 13 is electrically connected to the other of the principal surfaces of the composition change layer through a formation of a junction between the cathode electrode 13 and another part of the semiconductor layers, the anode electrode 12 and the cathode electrode 13 are capable of applying a voltage to the composition change layer 23 in a direction perpendicular to the principal surface, andthe composition change layer 23 has composition that changes from a cathode electrode 13 side toward an anode electrode 12 side in the direction perpendicular to the principal surface of the composition change layer, has a negative polarization charge that is generated due to the composition that changes, and contains a donor impurity.

摘要翻译： [待解决的问题]提供了一种半导体器件，其中改善了耐压性和通态电阻之间的折衷，并提高了性能。 [解决方案]本发明的半导体器件1包括半导体层20至23，阳极电极12和阴极电极13，其中半导体层包括组成变化层23，阳极电极12电连接到 通过在阳极12和半导体层的一部分之间形成肖特基结，组成变化层的主表面通过形成阴极电极13而与组合物改变层的另一个主表面电连接 阴极电极13和半导体层的另一部分之间的接合点，阳极电极12和阴极电极13能够在垂直于主表面的方向上向组合物变化层23施加电压，并且组成变化层 23具有从阴极电极13侧向阳极电极12侧变化的组成 具有垂直于组成变化层的主表面的方向具有由于组成变化而产生并且包含施主杂质的负极化电荷。