摘要:
An electronic element is mounted on a resin wiring substrate and a cover member is bonded to the wiring substrate so as to cover the electronic element and constitute an encapsulation region. The encapsulation region houses the electronic element and has a cavity inside. A side electrode is formed of an electronically conductive through groove provided in a cover-member-bonding surface on the wiring substrate. A plating layer inside the electrically conductive through groove includes at least two metal layers including an Au plating layer and a Cu plating layer. The plating layer has conductors connected to circumferential peripheries of the electrically conductive through groove on upper and lower surfaces of the wiring substrate. Only the Cu plating layer is formed on the conductor on the upper surface of the wiring substrate to improve the reliability of bonding. The reliability of bonding of the resin wiring substrate and cover member which constitute the encapsulation region is improved, and therefore the reliability of the air-tight seal of the cavity inside the encapsulation region is improved.
摘要:
The present invention is a memory circuit that includes a bistable circuit that stores data, and a ferromagnetic tunnel junction device that nonvolatilely stores the data in the bistable circuit according to a magnetization direction of a ferromagnetic electrode free layer, the data nonvolatilely stored in the ferromagnetic tunnel junction device being able to be restored in the bistable circuit. According to the present invention, writing data to and reading data from the bistable circuit can be performed at high speed. In addition, even though a power source is shut down, it is possible to restore data nonvolatilely stored in the ferromagnetic tunnel junction devices to the bistable circuit.
摘要:
In a nitride semiconductor laser chip so structured as to suppress development of a step on nitride semiconductor layers, the substrate has the (1-100) plane as the principal plane, the resonator facet is perpendicular to the principal plane, and, in the cleavage surface forming the resonator facet, at least by one side of a stripe-shaped waveguide, an etched-in portion is formed as an etched-in region open toward the surface of the nitride semiconductor layers.
摘要:
In a nitride semiconductor laser chip so structured as to suppress development of a step on nitride semiconductor layers, the substrate has the (1-100) plane as the principal plane, the resonator facet is perpendicular to the principal plane, and, in the cleavage surface forming the resonator facet, at least by one side of a stripe-shaped waveguide, an etched-in portion is formed as an etched-in region open toward the surface of the nitride semiconductor layers.
摘要:
A nitride-based semiconductor light-emitting device having excellent reliability and long lifetime, and a method of manufacturing the same are provided. A nitride-based semiconductor light-emitting element chip, in which a nitride-based semiconductor layer and a first electrode are formed on a surface of an electrically conductive substrate and a second electrode is formed on a rear surface of the electrically conductive substrate, is mounted on a submount, and the submount having the nitride-based semiconductor light-emitting element chip mounted thereon is further mounted on a stem to form a nitride-based semiconductor light-emitting device.
摘要:
At each side of a ridge stripe 110, a trench is formed as a region carved relative to a wafer surface so that, at the time of cleaving, a surface irregularity that develops at a mirror facet near an active layer is prevented from reaching the ridge stripe 110.
摘要:
In a nitride semiconductor laser device so structured as to suppress development of a step on nitride semiconductor layers, the substrate has the (11-20) plane as the principal plane, the resonator end surface is perpendicular to the principal plane, and, in the cleavage surface forming the resonator end surface, at least by one side of a stripe-shaped waveguide, an etched-in portion is formed as an etched-in region open toward the surface of the nitride semiconductor layers.
摘要:
At each side of a ridge stripe 110, a trench is formed as a region carved relative to a wafer surface so that, at the time of cleaving, a surface irregularity that develops at a mirror facet near an active layer is prevented from reaching the ridge stripe 110.
摘要:
A nitride semiconductor ultraviolet light-emitting device includes at least one first conductivity-type nitride semiconductor layer, a nitride semiconductor emission layer, at least one second conductivity-type nitride semiconductor layer and a transparent conductive film of crystallized Mgx1Zn1-x1O (0
摘要翻译:氮化物半导体紫外线发光元件包括:至少一个第一导电型氮化物半导体层,氮化物半导体发光层,至少一个第二导电型氮化物半导体层和结晶的Mg x ZnZi 1-x O 1的透明导电膜(0
摘要:
The present invention is a memory circuit that includes a bistable circuit that stores data; and a ferromagnetic tunnel junction device that nonvolatilely stores the data stored in the bistable circuit according to a magnetization direction of a ferromagnetic electrode free layer, the data nonvolatilely stored in the ferromagnetic tunnel junction device being able to be restored in the bistable circuit. According to the present invention, writing data to and reading data from the bistable circuit can be performed at high speed. In addition, even though a power source is shut down, it is possible to restore data nonvolatilely stored in the ferromagnetic tunnel junction devices to the bistable circuit.