摘要:
A semiconductor laser device which ensures high yield, high reliability and high power output by reduction in tensile strain in its active region for improvement in the COD level. The device comprises: a semiconductor crystal-growing portion having an active layer for conversion of electric energy into light energy and a mesa structure protruding on the one side; and an electrode film which is electrically connected with the top face of the mesa structure. The electrode film has a tensile strain and stretches sideward from the mesa structure. In the device, there is a strain control film which is polymerized with the electrode film part stretching sideward from the mesa structure and has a compressive stress.
摘要:
There is provided a semiconductor laser element which can change band gap wavelengths without change of composition of a multiple quantum well active layer and a method for fabricating a semiconductor laser module. In the method for fabricating a semiconductor laser element wherein a multiple quantum well active layer is formed on a semiconductor substrate with a crystal growth method, an insulation film is formed at the upper part of the multiple quantum well active layer, an electrode film is moreover formed on the insulation film and at least a part of the electrode film is electrically connected to the multiple quantum well active layer, distortion of the multiple quantum well active layer is controlled in the semiconductor laser element fabrication process after the process of the crystal growth method.
摘要:
A circuit substrate, such as a thermal printing head, having electrodes made of a material suitable for soldering. The electrode to be soldered, at least in part, is composed of an alloy of Ni and Cu, whose composition ranges from 65 mol % Ni - 35 mol % Cu to 75 mol % Ni - 25 mol % Cu.
摘要:
An exterior member mounting unit is used for installing an exterior member to a device, such as a vehicle roof. The mounting unit includes a first part detachably supporting the exterior member so that an upper surface thereof is covered by the exterior member, a second part detachably held by the first part, and a screw for attaching the exterior member to the device while utilizing the second part detachably supported by the first part as a seating plate.
摘要:
In an objective lens actuator of an optical disk drive and the like, variations in the fixed end positions of wires serving as suspensions are reduced and tilt characteristics are improved. Terminal plates 20 fixed to a lens holder are tilted relative to wires 13 for supporting the lens holder with elasticity, and are soldered at the edges of the terminal plates 20, so that variations in the fixed end positions of the wires 13 are reduced.
摘要:
In an objective lens actuator of an optical disk drive and the like, variations in the fixed end positions of wires serving as suspensions are reduced and tilt characteristics are improved. When wires 13 are fixed by soldering, a deformation caused by soldering on the wires 13 is minimized by providing heat absorbing members 25 and 26 which hold the wires 13 near soldering positions to absorb soldering heat.
摘要:
An exterior member mounting unit is used for installing an exterior member to a device, such as a vehicle roof. The mounting unit includes a first part detachably supporting the exterior member so that an upper surface thereof is covered by the exterior member, a second part detachably held by the first part, and a screw for attaching the exterior member to the device while utilizing the second part detachably supported by the first part as a seating plate.
摘要:
An energy supply system includes at least two devices selected from a device for generating electric power, a device for heating a heat conveying medium to an atmospheric temperature or higher and a device for cooling a heat conveying medium to the atmospheric temperature or lower; a device for supplying at least two selected from electric power, heat of atmospheric temperature or higher and cold of atmospheric temperature or lower to a plurality of customers; a device for measuring supply quantities of electric power, heat and cold, supplied to the plurality of customers; a device for calculating usage charges for electric power, heat and cold, consumed by each of the customers on the basis of the supply quantities; and a device for settling the usage charges. One enterprise entity manages these activities.