摘要:
The method of the present invention comprises the steps of:providing a first aluminum member and a second aluminum member to be bonded to each other;forming a zinc alloy soldering layer on the surface while applying ultrasonic vibration to any one of the first aluminum member and the second aluminum member; andbonding the first aluminum member and the second aluminum member through the zinc alloy soldering layer. That is, the first aluminum member and the second aluminum member are formed by casting. The first aluminum member is thereafter immersed in a molten zinc alloy soldering bath. Ultrasonic vibration is applied, and a zinc alloy soldering layer is formed in a prescribed region of the first aluminum member. Further, a zinc alloy soldering layer is formed in a prescribed region of the second aluminum member in the same manner as in the first aluminum member. Then, the first aluminum member and the second aluminum member are bonded through the zinc alloy soldering layer.Upon bonding, ultrasonic vibration is applied, or the members are heated to a temperature over the melting point of the zinc alloy solder.
摘要:
A surface modifier composition that exercises an excellent antistatic performance, offers an excellent storage stability, and provides an excellent surface feel, surface protection, and surface lubricity; that does not suffer from deterioration over long periods of time; that exhibits an excellent blending stability with respect to cosmetics, lubricants, lustrants, antifoams, fiber-treatment agents, and paints; and that has an excellent capacity to improve a variety of surface properties. The surface modifier composition comprises an (A) amidepolyether-modified organopolysiloxane and an (B) alcoholic functional group-containing compound.
摘要:
An R-Fe-B-based, sintered magnet, wherein R is one or more of rare earth elements including Y, is produced by the method including the steps of mixing fine R-Fe-B-based magnet powder with a mineral oil and/or a synthetic oil having a fractional distillation temperature range of 150.degree.-400.degree. C. and a kinetic viscosity of 10 cSt or less to prepare a mixture; charging the mixture under pressure into a die cavity equipped with a filter, to which an orientated magnetic field is applied, while removing a mineral oil and/or a synthetic oil from the mixture; compressing the mixture in the die cavity to carry out a wet molding while orientating the powder to prepare a green body; heating the green body to a temperature up to 500.degree. C. at a speed of 10.degree. C./min or less under pressure of 10.sup.-1 Torr or less for 30 minutes or more to remove a mineral oil and/or a synthetic oil from the green body; and then sintering the green body.
摘要:
The invention is directed to a phase shift photomask for which a film made of a material capable of providing an etching stopper layer that excels in etching selectivity and can interrupt etching surely and automatically, and provides a phase shift photomask at least comprising a substrate 30 and a phase shifter pattern made of a material composed mainly of silicon oxide that is provided on the surface of the substrate directly or with an opaque layer 37 interposed therebetween, said phase shift photomask being characterized in that the surface 30 is provided on the surface with an etching stopper layer 30 that comprises a mixture of Al.sub.2 O.sub.3 with MgO, ZrO.sub.2, Ta.sub.2 O.sub.5 or HfO, or CrO.sub.x, CrN.sub.y, CrC.sub.z, CrO.sub.x N.sub.y, CrO.sub.x C.sub.z or CrO.sub.x N.sub.y C.sub.z, or MgF.sub.2-2x O.sub.y, CaF.sub.2-2x O.sub.y, LiF.sub.2-2x O.sub.y, BaF.sub.2-2x O.sub.y, La.sub.2 F.sub.6-2x O.sub.y or Ce.sub.2 F.sub.6-2x O.sub.y, whereby the etching stopper layer is allowed to etch a transparent film for a phase shifter surely and accurately, when making a phase shifter pattern by etching.
摘要翻译:本发明涉及一种相移光掩模,其中由能够提供蚀刻选择性优异并且可以中断和自动中断蚀刻的蚀刻阻挡层的材料制成的膜,并且提供至少包括基板30的相移光掩模和 由主要由氧化硅构成的材料制成的移相器图案,其直接设置在基板的表面上,或者设置在其间的不透明层37,所述相移光掩模的特征在于,表面30设置在表面上 蚀刻阻挡层30,其包含Al 2 O 3与MgO,ZrO 2,Ta 2 O 5或HfO,或CrO x,CrN y,CrC z,CrO x N y,CrO x C z或CrO x N y C z或MgF 2 -2 x O y,CaF 2 -2 x O y,LiF 2 -2 x O y,BaF 2 -2 x O y,La 2 F 6 -2xOy或Ce2F6-2x Oy,从而当通过蚀刻制造移相器图案时,可以确切地和准确地蚀刻蚀刻停止层用于移相器的透明膜。
摘要:
In an optical head apparatus for recording or reproducing information onto or from an optical disc, a carriage is movable along a guide shaft extending in a direction parallel with the radial direction of the optical disc, and an armature is mounted on the carriage so that it can rotate about a pivotal axis perpendicular to the surface of the optical disc. An objective lens is fixed to the armature and positioned to traverse the tracks on the optical disc when the armature rotates. Guide yokes extend in parallel with the guide shaft. Tracking and carriage-servo coils are fixed to the armature and have a hollow through which the guide yokes loosely extend. A magnetic field means creates magnetic lines of force perpendicular to the longitudinal direction of the guide yokes and parallel with the surface of the optical disc. A drive circuit supplies currents to the tracking and carriage-servo coils in such directions as to produce electromagnetic forces in parallel with each other thereby driving the armature along the guide yokes or in such directions as to produce electromagnetic forces in antiparallel with each other to rotate the armature about the pivotal axis.
摘要:
A dual loop type data highway system comprises a data highway having at least two loops for data transmission and reception, a plurality of data transmitting/receiving stations serially connected to the data highway and a control station serially connected to the data highway. The data transmitting/receiving stations each have means for detecting the beginning of a transmission cycle, one for each of the loops, and the control station has, one for each of the loops, means for detecting the end of the transmission cycle and means for permitting the transmission/reception of data between specified two of the data transmitting/receiving stations during the transmission cycle by polling, whereby an effective transmission rate is increased without considerable increase of hardware.
摘要:
To enable long-term continuous operation by preventing blocking of a reaction pipe line disposed in a multi-pipe or double-walled-pipe heat exchanger, provided is a device for producing gas hydrate including a multi-pipe or double-walled-pipe device 1 for generating gas hydrate having a reaction pipe line 2 for flowing raw material water w and raw material gas g and a coolant circulation region 3 for circulating a coolant c and thereby cooling the reaction pipe line 2, wherein a coil spring 4 extending in the longitudinal direction of the reaction pipe line 2 is provided in the reaction pipe line 2.
摘要:
A laser lap welding method for parts made of galvanized steel sheet includes steps of: press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.
摘要:
According to one embodiment, a resistance change memory includes a memory cell, a sense amplifier and a global bit line. The memory cell is disposed at a location where a local bit line and a word line intersect each other. The memory cell is connected to both the local bit line and the word line. The sense amplifier reads data stored on the memory cell by supplying a read current to the memory cell. The global bit line is connected between the local bit line and the sense amplifier. The global bit line feeds the read current supplied by the sense amplifier to the local bit line. The sense amplifier charges the global bit line, before the local bit line and the global bit line are connected to each other.
摘要:
A laser lap welding method for parts made of galvanized steel sheet includes steps of press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.