摘要:
A nitride compound semiconductor laser, of which driving voltage is low and transverse mode of light is stable, having a plurality of crystal layers made of a group III nitride compound semiconductor expressed by the formula (AlGa1-x)1-yInyN (0≦x≦1, 0≦y≦1). The layers include an active layer-side guide layer which is adjacent to an active layer in the crystal layers of the group III nitride compound semiconductor and made of Alx′Ga1-x′-y′Iny′N (0≦x′≦1, 0≦y′≦1), a current constricting AlN layer deposited on said guide layer and having a stripe-shape aperture, an electrode-side guide layer made of Alx″Ga1-x″-y″Iny″N (0≦x″≦1, 0≦y″≦1) and deposited filling the aperture of the current constricting layer, and a clad layer made of AluGa1-u-vInvN (0≦u≦1, 0≦v≦1) and deposited on the electrode-side guide layer.
摘要翻译:驱动电压低且横向模式稳定的氮化物化合物半导体激光器具有由式(AlGa1-x)1-yInyN(0≤...)表示的由III族氮化物化合物半导体构成的多个晶体层, x <= 1,0 <= y <= 1)。 这些层包括与III族氮化物化合物半导体的晶体层中的有源层相邻的有源层侧引导层,由Al x Ga 1-x'-y'In y'N(0 <= x' = 1,0 <= y'<= 1),沉积在所述引导层上并具有条形孔的电流收缩AlN层,由Al x''Ga 1-x“y”形成的电极侧引导层, “Iny''N(0 <= x”<= 1,0,0 <= y“<= 1),并填充电流收缩层的孔径,以及由AluGa1-u-vInvN(0 <= u <= 1,0 <= v <= 1)并沉积在电极侧引导层上。
摘要:
A process for producing a semiconductor emitting device of group III nitride semiconductor having a crystal layer (Al.sub.x Ga.sub.1-x).sub.1-y In.sub.y N (0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1) includes; a step of forming at least one pn-junction or pin-junction and a crystal layer (Al.sub.x Ga.sub.1-x).sub.1-y In.sub.y N (0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1) to which a group II element is added; and a step of forming electrodes on the crystal layer. The process further includes an electric-field-assisted annealing treatment in which the pn-junction or pin-junction is heated to the predetermined temperature range while forming and maintaining an electric field across the pn-junction or pin-junction for at least partial time period of the predetermined temperature range via the electrodes.
摘要翻译:一种用于制造半导体具有晶体层(的AlxGa1-x)的1-yInyN(0 = X = 1,0 = Y = 1)包括发光III族氮化物半导体的器件的方法; 形成至少一个pn结或pin结和一个液晶层(的AlxGa1-X)的步骤1-yInyN(0 = X = 1,0 = Y = 1)到其上 添加第二组元素; 以及在所述晶体层上形成电极的步骤。 该过程还包括电场辅助退火处理,其中,同时形成和跨越pn结或pin结保持的电场至少部分时间的pn结或pin结被加热到预定的温度范围 经由电极的预定温度范围的周期。
摘要:
The semiconductor light-emitting element uses a compound semiconductor quantum well structure comprising a well layer, and barrier layers between which the well layer is sandwiched, as an active layer. In the adjacent well layer and barrier layers of the semiconductor light-emitting element, the well layer has in part a doped well region to which an n-type impurity is added at the interface with the barrier layer on the electron injection side, and in the vicinity of this interface, and the barrier layer has a doped barrier region to which the n-type impurity is added at least at the interface and in the vicinity of this interface.
摘要:
The semiconductor light-emitting element uses a compound semiconductor quantum well structure comprising a well layer, and barrier layers between which the well layer is sandwiched, as an active layer. In the adjacent well layer and barrier layers of the semiconductor light-emitting element, the well layer has in part a doped well region to which an n-type impurity is added at the interface with the barrier layer on the electron injection side, and in the vicinity of this interface, and the barrier layer has a doped barrier region to which the n-type impurity is added at least at the interface and in the vicinity of this interface.
摘要:
A semiconductor laser device comprises: a first light-emitting element having a first laser part, an insulating layer, and an ohmic electrode layer; and a second light-emitting element having a second laser part, an insulating layer, and an ohmic electrode layer. The first laser part has a ridge waveguide, and is formed by stacking thin films of group-III nitride compound semiconductors (for example, GaN-based semiconductors). The second laser part has a ridge waveguide, and is formed by stacking thin films of group III–V compound semiconductors (such as GaAs). The first laser part and the second laser part are integrally bonded to each other by the interposition of an adhesive metal layer which is formed between the ohmic electrode layers. This provides the semiconductor laser device with a small distance between the light-emitting spots of the laser parts.
摘要:
A Group III nitride semiconductor light-emitting element includes a crack-preventing layer 15 of n-type GaN provided between a n-type contact layer 4A and a n-type clad layer 5A, wherein the crack-preventing layer 15 has a dopant concentration lower than that of the n-type contact layer 4A.
摘要:
An improved semiconductor laser device is provided which has a small distance between laser light emitting spots. Such laser device comprises i) a first light emitting element including a laser oscillation section provided with a ridge waveguide and formed by forming a group-III nitride semiconductor film on a substrate, an insulating layer and an ohmic electrode layer, ii) a second light emitting element including a laser oscillation section provided with a waveguide and formed by forming III–V compound semiconductor film, an insulating layer and an ohmic electrode layer. By virtue of the adhesive metal layer interposed between the two ohmic electrode layers, the two laser oscillation sections are combined together, thereby forming the improved semiconductor laser device which has a small distance between laser light emitting spots of the two laser oscillation sections.
摘要:
The disclosure is a method for fabricating a nitride semiconductor laser device of group-III nitride semiconductor having a substrate. The method includes a step of forming a crystal layer made of a group-III nitride semiconductor (AlxGa1-x)1-yInyN (0≦x≦1, 0≦y≦1) having an added group II element over the substrate; a step of heating the crystal layer up to a predetermined temperature in a thermal treatment atmosphere and maintaining the predetermined temperature for a first time period; and a step of introducing a hydrocarbon gas into the thermal treatment atmosphere for at least a partial time period within the first time period. The method further includes a step of irradiating an electromagnetic wave or photons to the crystal layer in the at least a partial time period, wherein the electromagnetic wave or photons have an energy greater than an energy forbidden band width of the group III nitride semiconductor in the crystal layer.
摘要翻译:本公开是制造具有基板的III族氮化物半导体的氮化物半导体激光器件的方法。 该方法包括由具有添加的II族元素的III族氮化物半导体(Al x Ga 1-x)1-y In y N(0 <= x <= 1,0 <= y <= 1)形成的晶体层的步骤 基材; 在热处理气氛中将晶体层加热到预定温度并保持第一时间段的预定温度的步骤; 以及在第一时间段内将烃气体引入热处理气氛中至少部分时间段的步骤。 该方法还包括在至少部分时间段内将电磁波或光子照射到晶体层的步骤,其中电磁波或光子的能量大于III族氮化物半导体的能量禁带宽度 晶体层。
摘要:
A GaN type semiconductor layer in which a group 2 impurity element is added is formed. The GaN type semiconductor layer is heated at a predetermined temperature, while irradiating the semiconductor layer with an electromagnetic wave having an energy larger than the band gap energy of the GaN type semiconductor layer.
摘要:
An underlying layer ALY of GaN is formed on a sapphire substrate SSB; a transfer layer TLY of GaN with a bump and dip shaped surface is formed on the underlying layer ALY; a light absorption layer BLY is formed on the bump and dip shaped surface of the transfer layer TLY; and a grown layer 4 of a planarization layer CLY and a structured light-emitting layer DLY having at least an active layer are formed on the light absorption layer BLY. A support substrate 2 is provided on the grown layer 4. The backside of the sapphire substrate SSB is irradiated with light of the second harmonic of YAG laser (wavelength 532 nm) to decompose the light absorption layer BLY and delaminate the sapphire substrate SSB, thereby allowing the planarization layer CLY of a bump and dip shaped surface to be exposed as a light extraction face.