Abstract: A mounting device includes: an application part applying paste on a substrate to form an application body; a bonding part forming a mounted body by mounting a chip component on the substrate via the application body; a first imaging part imaging the application body after application processing and before mounting processing to acquire first image information; a second imaging part imaging the mounted body after the mounting processing to acquire second image information; and a control part controlling the application part, the bonding part, and the first and second imaging parts, and obtains a 3D application body shape (first shape) from the first image information as a first shape and calculates a 3D mounted body shape (second shape) from the second image information. The control part evaluates the application processing or the mounting processing based on the first and the second shapes.

Abstract: In a pickup apparatus of a semiconductor die, a suction surface sucking a wafer sheet is a curved surface which is curved convexly upward, and after raising a stage to push up the wafer sheet, a control part creates a vacuum inside the stage to suck the wafer sheet to the suction surface, and after sucking the wafer sheet to the suction surface, the control part protrudes a moving element from the suction surface, and picks up a semiconductor die from the wafer sheet by a collet.

Abstract: A pick-up device 10 for picking up a semiconductor chip 100 attached to a front surface of a sheet material 110 is provided with: a stage 12 that includes a material a part or the entirety of which is capable of transmitting a destaticizing electromagnetic wave having an ionization effect and that attracts and holds a rear surface of the sheet material 110; a jacking-up pin 26 for jacking up the semiconductor chip 100 from the rear side of the stage 12; and a destaticizing mechanism 20 that destaticizes charge generated between the semiconductor chip 100 and the sheet material 110 by irradiating the rear surface of the semiconductor chip 100 with the destaticizing electromagnetic wave that is made to pass through the sheet material 110 from the rear side of the stage 12.

Abstract: A mounting device includes: an application part applying paste on a substrate to form an application body; a bonding part forming a mounted body by mounting a chip component on the substrate via the application body; a first imaging part imaging the application body after application processing and before mounting processing to acquire first image information; a second imaging part imaging the mounted body after the mounting processing to acquire second image information; and a control part controlling the application part, the bonding part, and the first and second imaging parts, and obtains a 3D application body shape (first shape) from the first image information as a first shape and calculates a 3D mounted body shape (second shape) from the second image information. The control part evaluates the application processing or the mounting processing based on the first and the second shapes.

Abstract: A pick-up device 10 for picking up a semiconductor chip 100 attached to a front surface of a sheet material 110 is provided with: a stage 12 that includes a material a part or the entirety of which is capable of transmitting a destaticizing electromagnetic wave having an ionization effect and that attracts and holds a rear surface of the sheet material 110; a jacking-up pin 26 for jacking up the semiconductor chip 100 from the rear side of the stage 12; and a destaticizing mechanism 20 that destaticizes charge generated between the semiconductor chip 100 and the sheet material 110 by irradiating the rear surface of the semiconductor chip 100 with the destaticizing electromagnetic wave that is made to pass through the sheet material 110 from the rear side of the stage 12.

Abstract: A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a light spot onto the medium. When reproducing information, the light spot is projected onto the medium from the side of the magnetic layer. In this method only a high temperature region of the second magnetic layer within a light spot projection portion is changed to a perpendicular magnetization film so that information recorded in the first magnetic layer is transferred to the perpendicular magnetization film of the second magnetic layer. In addition, information which is transferred to the second magnetic layer is detected by using reflected light from the medium which is subjected to the magneto-optic effect from the perpendicular magnetization film of the second magnetic layer.

Abstract: A magnetooptical recording medium includes a first magnetic layer, in which data is to be stored, and a second magnetic layer, wherein the first magnetic layer is perpendicularly magnetizable at both room temperature and a raised temperature above room temperature, and the second magnetic layer is in-plane magnetizable at room temperature and becomes perpendicularly magnetizable at the raised temperature, which is composed of Gd.sub.x (Fe.sub.100-y Co.sub.y).sub.100-x, where 27.ltoreq.x.ltoreq.31 and 28.ltoreq.y.ltoreq.50.

Abstract: An optical recording medium has tracking tracks and recording tracks interposed between the tracking tracks. The width of the recording tracks in a specific region is larger than that in other region.

Abstract: An optical recording medium is provided with optical guide grooves and prepits representing for example address data, in a land portion sandwiched between the grooves. The reflectivity in the bottom portion of the prepits is made higher than that of the land portion. An antireflection film is provided on the medium such that, in case where the reflectivity of the antireflection film decreases with the increase in the thickness of the antireflection film, the thickness of the antireflection film on the bottom of the prepits is selected smaller than that on the land portion. In the case where reflectivity of the antireflection film increases with the increase in the thickness of the antireflection film, the thickness of the antireflection film on the bottom of the prepits is selected larger than that on the land portion.

Abstract: There is disclosed an optical recording medium provided with an optical recording layer on a substrate, in which a layer of nitride of a substance selected from tungsten, zirconium, titanium, niobium, vanadium, tantalum and chromium is formed on a side or both sides of the optical recording layer.

Abstract: In an optical recording medium having an optical recording layer provided on a substrate, a carbide film of a substance selected from among tungsten, boron, molybdenum, hafnium, niobium, titanium, chromium, vanadium, tantalum and silicon is formed on one or each side of the recording layer.

Abstract: An information recording disk has a transparent support substrate and a transfer layer formed thereon using a stamper. The transfer layer comprises a precursor having as major components a cycloacetal compound having at least two polymerizable unsaturated groups, a compound having at least two mercapto groups, and an acrylic ester and/or methacrylic ester.

Abstract: A timer switch comprises a cam member of a generally disc shape having a cam surface at its periphery. The cam surface is stepped to provide a depressed portion and a shoulder portion adjacent thereto. The cam surface has a notch formed in the shoulder portion and opening to one side of the cam member. The cam member is operatively connected to a motor for rotation. A shaft is mounted on a casing for rotation about and displacement along the axis thereof. The cam member is fixedly mounted on the shaft for rotation therewith. An electrical switching means comprises a pair of first and second contact plates of a resilient material. The first contact plate is biased into sliding engagement with the cam surface. The second contact plate is biased normally into engagement with the first contact plate for energizing the motor to rotate the cam member. Upon depression of the first contact plate into the depressed portion the second contact plate engages the shoulder portion to de-energize the motor.

Abstract: A synchronous motor includes a reduction gear train operatively connecting a rotor to an output shaft. A retaining member is rotatably mounted on and frictionally engages the first gear member of the reduction gear train for angular movement about the axis thereof, the first gear member being in mesh with a drive gear on the rotor. The retaining member has an abutment lug which is engageable with the engaging portion when the rotor is rotated in its reverse direction whereupon the engaging portion rebounds from the lug to cause the rotor to rotate in its normal direction. The shaft of the first gear member is parallel to the axis of rotation of the rotor and is disposed at a position angularly displaced about the axis of the rotor from a predetermined point of the rotor by an angle of 360.degree./P x n when said engaging portion is brought into engagement with the abutment lug wherein P is the number of the magnetic poles around said rotor and n is an integer (0, 1, 2, 3 . . . ).

Abstract: A timer switch comprises a drive gear secured to an interval shaft rotatably mounted on a casing. A first clutch gear is rotatably mounted on a bushing which is rotatably mounted on said casing. The first clutch gear is in mesh with the drive gear. A second clutch gear is fixedly mounted on the bushing for rotation therewith and disposed in closely spaced opposed relation to the first clutch gear. The second clutch gear is operatively connected to an electric motor. A slip friction clutch in the form of a flat resilient plate is interposed between and frictionally engages the opposed first and second clutch gears so that the slip friction clutch is deformed into an arcuate cross-section. The slip friction clutch urges the first clutch gear away from the second clutch gear into frictional engagement with the bushing.

Abstract: A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a light spot onto the medium. When reproducing information, the light spot is projected onto the medium from the side of the magnetic layer. In this method only a high temperature region of the second magnetic layer within a light spot projection portion is changed to a perpendicular magnetization film so that information recorded in the first magnetic layer is transferred to the perpendicular magnetization film of the second magnetic layer. In addition, information which is transferred to the second magnetic layer is detected by using reflected light from the medium which is subjected to the magneto-optic effect from the perpendicular magnetization film of the second magnetic layer.