摘要:
A silicon wafer after being cleaned by using a cleaning liquid is rinsed by using carbonic water. According to such a silicon wafer cleaning method, generation of static due to a rinsing treatment is not caused, so that an electrostatic breakdown is not caused, adhesion of dirt to a cleaned silicon wafer surface due to the static is not caused, adhesion of metal impurities can be prevented in the rinsing treatment of the silicon wafer and, while giving consideration to the cost, furthermore, a rinsing treatment using a clean rinsing liquid free from causing any residue can be performed.
摘要:
A wheel truing apparatus adapted for use in a cylindrical grinding machine wherein a work head with a work spindle for support of a workpiece and a wheel head with a grinding wheel for grinding the workpiece are mounted on a bed for relative movement in a Z-axis direction parallel with the rotation axis of the work spindle and in an X-axis direction crossing the Z-axis direction, characterized in that the wheel truing apparatus comprises a rotary drive portion mounted on the work head or a member united therewith, and a wheel truing tool supported on the rotary drive portion for rotation therewith, the wheel truing tool being provided at its outer periphery with a truing portion for truing a grinding surface of the wheel brought into contact therewith, wherein the rotary drive portion is placed in a position adjacent to said work head in a tooling area defined by a stroke of the relative movements of said wheel head and said work head in the Z-axis direction and apart from said work spindle radially outward and is arranged in such a manner that the rotation axis line of said truing tool is oriented toward the rotation axis line of said grinding wheel in a condition where said truing portion is retained in contact with the grinding surface of said wheel, whereby the truing portion of said tool is brought into contact with the grinding surface of said wheel by relative movement of said wheel head to said work head for truing the grinding surface.
摘要:
A magnetic gear comprises a first permanent magnet field having a plurality of permanent magnet magnetic poles, a second permanent magnet field having a plurality of permanent magnet magnetic poles, number of poles of which magnet is different from that of the first permanent magnet field, and a modulating magnetic pole arranged between the first permanent magnet field and the second permanent magnet field and having a plurality of pole pieces to modulate the number of poles of the first and second permanent magnet fields. Non-magnetic bars are provided between the plurality of pole pieces. One ends of the non-magnetic bars are fixed to a first non-magnetic end holding member and the other ends of the non-magnetic bars are electrically insulated from and fixed to a second non-magnetic end holding member.
摘要:
In a charged particle accelerator, voltage of several tens of kV is applied between accelerating electrodes. In such a case, electric discharge is sometimes generated between the accelerating electrodes. In the charged particle accelerator, part or entirety of the accelerating electrodes is coated with an electric discharge suppressing layer made of ceramics or alloy having a high melting point as compared with metal. When impurity fine particles are accelerated by an electric field and collide with the electrodes, the electric discharge suppressing layer made of ceramics or alloy prevents metal vapor from being easily generated from the electrodes and an ionized plasma from being easily produced, thus suppressing electric discharge between the electrodes.
摘要:
A totally enclosed motor which includes a rotor disposed inside a housing and a heat of the rotor is transferred to the housing, a stator disposed inside the housing and a heat of the stator is transferred to the housing, and an inner fin which is disposed in the rotor and agitates air inside the housing. The totally enclosed motor is cooled by a forced convection by an outer fan disposed outside the housing, or by a natural convention in the vicinity of an outer surface of the housing, and a shape of the rotor is different between one end side and the other end side of the rotor in an extending direction of a rotary shaft of the rotor.
摘要:
A charged particle beam apparatus in which discharge is less likely to occur between a charged particle source, and an extraction electrode, and an acceleration electrode without the need for increasing the capacity of a high voltage power supply for extraction. The charged particle beam apparatus includes a charged particle source which emits charged particles, an extraction electrode which extracts the charged particles from the charge particle source and an acceleration electrode which accelerates the extracted charged particles. A surge absorber is electrically connected between at least two of the charged particle source, the extraction electrode, and the acceleration electrode.
摘要:
A method of manufacturing a microwire or a nanowire formed of a metal-containing compound having a desired composition, including the steps of: (1) preparing a vapor or gas of an organometal compound and, if required, a vapor or gas of an optically excitable organic compound and/or a vapor or gas of reactive organic compound; (2) introducing the vapor or gas prepared in the step (1) into a reaction vessel; and (3) irradiating the vapor or gas introduced into the reaction vessel in the step (2) with a light having a wavelength which is absorbed by at least one of the organometal compound and the optically excitable organic compound.
摘要:
A reliable solar cell module is provided whereby the liquid is less likely to stay thereon, thus dirt is less likely to occur on the light receiving surface of the solar cell module even in a prolonged use. A solar cell module comprising a solar cell panel P configured by arranging a solar cell element between a light receiving surface side member and a rear surface side member, and a module frame W1 fixed to the solar cell panel P surrounds the solar cell panel P with its interior surface being abutted with an external peripheral part of the light receiving surface side member is provided. In this solar cell module, the module frame W1 has a notch 27 that extends from its inner part towards its external part in plan view from a side of the light receiving surface side member and is provided with an end portion 5 on an exterior side surface of the frame member, and this notch 27 has a draw part 4 with smallest width at an inner part rather than at the end portion 5.
摘要:
A method of manufacturing a microwire or a nanowire formed of a metal-containing compound having a desired composition, including the steps of:(1) preparing a vapor or gas of an organometal compound and, if required, a vapor or gas of an optically excitable organic compound and/or a vapor or gas of reactive organic compound;(2) introducing the vapor or gas prepared in the step (1) into a reaction vessel; and(3) irradiating the vapor or gas introduced into the reaction vessel in the step (2) with a light having a wavelength which is absorbed by at least one of the organometal compound and the optically excitable organic compound.
摘要:
A silicon-containing curable composition, comprising: a prepolymer (A) containing two or more Si—H groups per molecule obtained by hydrosilylation reaction of one kind or more selected from each of components (α) and components (β) described below; a cyclic siloxane compound (B) containing per molecule two or more carbon-carbon double bonds that have reactivity to the Si—H groups; and a hydrosilylation catalyst (C); wherein the component (α) is a cyclic siloxane compound represented by formula (1) and contains two or more Si—H groups per molecule, wherein R1, R2 and R3 each are an alkyl group having 1 to 6 carbon atoms or a phenyl group, may be the same or different, a is any number of 2 to 10, b is any number of 0 to 8, and a+b≧2, and wherein the component (β) is a compound containing per molecule two or more carbon-carbon double bonds that have reactivity to the Si—H groups.