摘要:
The invention offers a photodetector that has an N-containing InGaAs-based absorption layer having a sensitivity in the near-infrared region and that suppresses the dark current and a production method thereof. The photodetector is provided with an InP substrate 1, an N-containing InGaAs-based absorption layer 3 positioned above the InP substrate 1, a window layer 5 positioned above the N-containing InGaAs-based absorption layer 3, and an InGaAs buffer layer 4 positioned between the N-containing InGaAs-based absorption layer 3 and the window layer 5.
摘要:
The present invention provides an image pickup device used to capture an image of an object by receiving light in a near infrared region reflected from the object. The image pickup device includes semiconductor light-receiving elements each having a light-receiving layer with a band gap wavelength of 1.65 to 3.0 μm.
摘要:
A light-receiving element includes an InP substrate 1, a light-receiving layer 3 having an MQW and located on the InP substrate 1, a contact layer 5 located on the light-receiving layer 3, a p-type region 6 extending from a surface of the contact layer 5 to the light-receiving layer, and a p-side electrode 11 that forms an ohmic contact with the p-type region. The light-receiving element is characterized in that the MQW has a laminated structure including pairs of an InxGa1-xAs (0.38≦x≦0.68) layer and a GaAs1-ySby (0.25≦y≦0.73) layer, and in the GaAs1-ySby layer, the Sb content y in a portion on the InP substrate side is larger than the Sb content y in a portion on the opposite side.
摘要翻译:光接收元件包括InP衬底1,具有MQW且位于InP衬底1上的光接收层3,位于光接收层3上的接触层5,从 接触层5的表面与光接收层和与p型区域形成欧姆接触的p侧电极11。 光接收元件的特征在于MQW具有包括In x Ga 1-x As(0.38和nlE; x< lE; 0.68)层和GaAs1-ySby(0.25& nlE; y≦̸ 0.73)层的层的叠层结构,并且在GaAs1 -ySby层,InP衬底侧的部分中的Sb含量y大于相对侧的部分中的Sb含量y。
摘要:
A light-receiving element includes an InP substrate 1, a light-receiving layer 3 having an MQW and located on the InP substrate 1, a contact layer 5 located on the light-receiving layer 3, a p-type region 6 extending from a surface of the contact layer 5 to the light-receiving layer, and a p-side electrode 11 that forms an ohmic contact with the p-type region. The light-receiving element is characterized in that the MQW has a laminated structure including pairs of an InxGa1-xAs (0.38≦x≦0.68) layer and a GaAs1-ySby (0.25≦y≦0.73) layer, and in the GaAs1-ySby layer, the Sb content y in a portion on the InP substrate side is larger than the Sb content y in a portion on the opposite side.
摘要翻译:光接收元件包括InP衬底1,具有MQW且位于InP衬底1上的光接收层3,位于光接收层3上的接触层5,从 接触层5的表面与光接收层和与p型区域形成欧姆接触的p侧电极11。 光接收元件的特征在于MQW具有包括In x Ga 1-x As(0.38 @ x @ 0.68)层和GaAs 1-ySby(0.25 @ y @ 0.73)层的对的层叠结构,并且在GaAs1-ySby InP衬底侧的部分中的Sb含量y大于相对侧的部分中的Sb含量y。
摘要:
The invention offers a photodetector that has an N-containing InGaAs-based absorption layer having a sensitivity in the near-infrared region and that suppresses the dark current and a production method thereof. The photodetector is provided with an InP substrate 1, an N-containing InGaAs-based absorption layer 3 positioned above the InP substrate 1, a window layer 5 positioned above the N-containing InGaAs-based absorption layer 3, and an InGaAs buffer layer 4 positioned between the N-containing InGaAs-based absorption layer 3 and the window layer 5.
摘要:
A manufacturing method and a semiconductor device produced by the method are provided, in which the semiconductor device can easily be manufactured while the hydrogen concentration is decreased. An N-containing InGaAs layer 3 is grown on an InP substrate by the MBE method, and thereafter a heat treatment is provided at a temperature in the range of 600° C. or more and less than 800° C., whereby the average hydrogen concentration of the N-containing InGaAs layer 3 is made equal to or 2×1017/cm3 or less than.
摘要翻译:提供了一种通过该方法制造的制造方法和半导体器件,其中可以在氢浓度降低的同时容易地制造半导体器件。 通过MBE法在InP衬底上生长含N的InGaAs层3,然后在600℃以上且小于800℃的温度下进行热处理,由此平均氢 使含有N的InGaAs层3的浓度为2×10 17 / cm 3以下。
摘要:
Affords Group III nitride semiconductor devices in which the leakage current from the Schottky electrode can be decreased. In a high electron mobility transistor 1, a supporting substrate 3 is composed of AlN, AlGaN, or GaN. An AlyGa1-yN epitaxial layer 5 has a surface roughness (RMS) of 0.25 mm or less, wherein the surface roughness is defined by a square area measuring 1 μm per side. A GaN epitaxial layer 7 is provided between the AlyGa1-yN supporting substrate 3 and the AlyGa1-yN epitaxial layer 5. A Schottky electrode 9 is provided on the AlyGa1-yN epitaxial layer 5. A first ohmic electrode 11 is provided on the AlyGa1-yN epitaxial layer 5. A second ohmic electrode 13 is provided on the AlyGa1-yN epitaxial layer 5. One of the first and second ohmic electrodes 11 and 13 constitutes a source electrode, and the other constitutes a drain electrode. The Schottky electrode 9 constitutes a gate electrode of the high electron mobility transistor 1.
摘要翻译:提供可以减少来自肖特基电极的漏电流的III族氮化物半导体器件。 在高电子迁移率晶体管1中,支撑基板3由AlN,AlGaN或GaN构成。 Al钇1-y N外延层5具有0.25mm或更小的表面粗糙度(RMS),其中表面粗糙度由测量1的正方形面积 妈妈每边。 在AlGaN外延层7之间设置有支撑衬底3的Al 1 Y y-N支撑衬底和Al 1 Al- 在N外延层5上设置肖特基电极9.设置第一欧姆电极11和第一欧姆电极11。 在Al钇1-y N外延层5上。第二欧姆电极13设置在Al钇1 Ga -Y / N外延层5.第一和第二欧姆电极11和13中的一个构成源电极,另一个构成漏电极。 肖特基电极9构成高电子迁移率晶体管1的栅电极。
摘要:
Affords Group III nitride semiconductor devices in which the leakage current from the Schottky electrode can be reduced. In a high electron mobility transistor 11, a supporting substrate 13 is composed of AlN, AlGaN, or GaN, specifically. An AlYGa1−YN epitaxial layer 15 has a full-width-at-half maximum of (0002) plane XRD of 150 sec or less. A GaN epitaxial layer 17 is provided between the gallium nitride supporting substrate and the AlYGa1−YN epitaxial layer (0
摘要:
Affords epitaxial substrates for vertical gallium nitride semiconductor devices that have a structure in which a gallium nitride film of n-type having a desired low carrier concentration can be provided on a gallium nitride substrate of n type. A gallium nitride epitaxial film (65) is provided on a gallium nitride substrate (63). A layer region (67) is provided in the gallium nitride substrate (63) and the gallium nitride epitaxial film (65). An interface between the gallium nitride substrate (43) and the gallium nitride epitaxial film (65) is positioned in the layer region (67). In the layer region (67), a peak value of donor impurity along an axis from the gallium nitride substrate (63) to the gallium nitride epitaxial film (65) is 1×1018 cm−3 or more. The donor impurity is at least either silicon or germanium.
摘要:
Affords high electron mobility transistors having a high-purity channel layer and a high-resistance buffer layer. A high electron mobility transistor (11) is provided with a supporting substrate (13) composed of gallium nitride, a buffer layer (15) composed of a first gallium nitride semiconductor, a channel layer (17) composed of a second gallium nitride semiconductor, a semiconductor layer (19) composed of a third gallium nitride semiconductor, and electrode structures (a gate electrode (21), a source electrode (23) and a drain electrode (25)) for the transistor (11). The band gap of the third gallium nitride semiconductor is broader than that of the second gallium nitride semiconductor. The carbon concentration NC1 of the first gallium nitride semiconductor is 4×1017 cm−3 or more. The carbon concentration NC2 of the second gallium nitride semiconductor is less than 4×1016 cm−3.