摘要:
A solar cell includes a semiconductor substrate having a photoelectric converting portion, a first electrode formed on a first main surface of the semiconductor substrate, and a second electrode connected to the first electrode on the first main surface. The first electrode includes a plurality of first connecting portions to be connected to an interconnector and a first non-connecting portion not connected to an interconnector. The first non-connecting portion is arranged between first connecting portions to electrically connect the first connecting portions together. The first connecting portion and first non-connecting portion are coupled forming an angle larger than 90° and smaller than 180°. A solar cell string and a solar cell module employ the solar cells.
摘要:
When sulfur oxides are present in mercury vapor-containing gas, the adsorption of mercury vapor by activated carbon is inhibited. Therefore, there has been demand for development of a method for effective adsorption removal of mercury vapor even in the coexistence of sulfur oxides.Efficient and long-term removal of mercury vapor was made successful by contacting an activated carbon adsorbent consisting of 100 parts by weight of activated carbon impregnated with 5 to 70 parts by weight of only an alkali metal halide, with mercury vapor in sulfur oxide-containing gas.
摘要:
A DSP, which has a through electrode and is stacked to a wiring substrate through an adhesive part, a solid-state image pickup element, which is stacked to the DSP through an adhesive part and has a through electrode and an effective pixel area, and a translucent lid part, which is placed to face the effective pixel area and bonded to the solid-state image pickup element through an adhesive part, are stored in an optical path defining unit with a lens for defining an optical path to the effective pixel area, and the translucent lid part is coupled to the optical path defining unit by a coupling part.
摘要:
A semiconductor laser module according to the present invention includes a polarization-synthesizing module having a polarization-synthesizing means configured to polarization synthesize two laser beams and a holder member for holding the polarization-synthesizing means with an approximately cylindrical circumferential surface, and a supporting member for supporting the holder member at least to rotate about an central axis and fixing the holder member at a predetermined position.
摘要:
The object of the invention is to secure straight travelability for a fastener during the driving of the latter, simplify the connecting fastener production process, simplify the cleaning of the work site, and prevent work-attending damage to the flooring. In a connecting fastener, kraft paper (5) in a combination band (2, 3) for holding a number of nails (2) is pasted to opposite surfaces of the nails (2), the kraft paper (5) having a plastic layer (6) that is formed with a plurality of grooves (7A, 7B) with a pitch smaller than the arrangement pitch of the nails (2), facilitating the separation of the nails (2).
摘要:
A semiconductor laser device having two active-layer stripe structures includes an n-InP substrate, an n-InP clad layer, a lower GRIN-SCH layer, an active layer, an upper GRIN-SCH layer, a p-InP clad layer, and a p-InGaAsP contact layer grown in this order, in a side cross section cut along one of the stripe structure. A high-reflection film is disposed on a reflection-side end surface, and a low-reflection film is disposed on an emission-side end surface. A p-side electrode is disposed on only a part of the upper surface of the p-InGaAsP contact layer so that a current non-injection area is formed on an area absent the p-side electrode.
摘要:
A semiconductor laser module includes a polarization direction transforming part which transforms polarization directions of first and second laser beams such that they are orthogonal to each other even if a polarization dependent optical isolator is utilized in the semiconductor laser module. The configuration allows the two laser beams to propagate through the birefringence element to the output port without each splitting into an ordinary ray and an extraordinary ray on entering the birefringence element, and therefore free from decrease of optical power reaching the output port. Thus, high power semiconductor laser modules can be provided.
摘要:
A fabrication method of a semiconductor device according to the present invention includes the steps of: bonding a reinforcing plate with a front surface of a semiconductor wafer via a reinforcing plate, the reinforcing plate having holes and the semiconductor wafer bearing semiconductor devices; grinding a back surface of the semiconductor wafer; and detaching the reinforcing plate from the semiconductor wafer by injecting a solvent for dissolving an adhesive layer into the holes and by allowing the solvent to permeate through the adhesive layer. The method enables the reinforcing plate to be quickly detached from the semiconductor wafer without causing defects, such as bending and cracking, in the semiconductor wafer after the reinforcing plate is used to grind the semiconductor wafer.
摘要:
A method, system and computer program product for assembling an optical module incorporates a far field pattern (FFP) optical measurement system and optionally a near field pattern (NFP) optical measurement system to obtain information about the axis and/or the divergent angle of light output from the optical elements to be assembled as part of the optical module. The optical elements include a light-emitting element, such as a laser diode, and at least one optical component, such as a collimating lens or a focusing lens. The system for assembling the optical module further includes a stage having the light-emitting element mounted thereon, a holding mechanism configured to hold and position the optical components to desired positions based on the measurements from the FFP and/or NFP optical measurement systems. A controller can control the stage, the holding mechanism and a fixing device configured to fix the positions of the optical elements once the optical elements are positioned in the desired positions.
摘要:
A semiconductor laser module has a Fabry-Perot type semiconductor laser device, an optical fiber, and first and second lenses. The tip of the optical fiber, on which the laser beam falls, is askew polished. The optical fiber is fixed in such a manner that the axis of the optical fiber makes an angle with respect to an optical axis of the laser beam. Coatings that avoid reflection are formed on the tip of the optical fiber, and on the first and second lenses.