Abstract: An apparatus for checking a semiconductor comprising an X-Y stage for movably holding a semiconductor chip in terms of X-Y coordinates, a charged particle beam radiating device for radiating a charged particle beam on the semiconductor chip held in the X-Y stage to generate secondary electrons therefrom, a detecting device for detecting secondary electrons emitted from the semiconductor, a magnifying device for displaying an enlarged image of the semiconductor chip on the basis of data of the detected secondary electrons, a semiconductor tester for measuring electrical characteristics of the semiconductor chip to specify a defective element of circuit elements constituting the semiconductor chip on the basis of a result of the measurement, a defective portion locating device provided with table data of a layout pattern showing the relationship between the circuit elements constituting the semiconductor chip and the arrangement thereof, for obtaining on the basis of the table data position data of the defectiv

Abstract: An apparatus for checking a semiconductor comprising an X-Y stage for movably holding a semiconductor chip in terms of X-Y coordinates, a charged particle beam radiating device for radiating a charged particle beam on the semiconductor chip held in the X-Y stage to generate secondary electrons therefrom, a detecting device for detecting secondary electrons emitted from the semiconductor, a magnifying device for displaying an enlarged image of the semiconductor chip on the basis of data of the detected secondary electrons, a semiconductor tester for measuring electrical characteristics of the semiconductor chip to specify a defective element of circuit elements constituting the semiconductor chip on the basis of a result of the measurement, a defective portion locating device provided with table data of a layout pattern showing the relationship between the circuit elements consituting the semiconductor chip and the arrangement thereof, for obtaining on the basis of the table data position data of the defective

Abstract: A solar cell module having a CdS/CdTe junction as a photovoltaic portion comprises a glass substrate, a metal foil, a layer of resin bonding the glass substrate and the metal foil together at a peripheral region of the module. For minimizing the reduction in conversion efficiency, an oxygen releasing agent is filled in the space delimited by the glass substrate, the metal foil and the resin layer.

Abstract: In a crank or eccentric press a main shaft is rotatably supported over a reciprocating ram or rams. Nonrotatably mounted on one end of the main shaft, a drive gear meshes directly with a drive pinion on a drive shaft which partly projects out of one side of the drive housing and which has a driving flywheel mounted on the projecting end. The other end of the main shaft is geared to a brake shaft having a portion projecting out of the other side of the drive housing and having a brake mounted thereon. Within the drive housing one or more axially spaced pairs of main pinions are fixedly mounted on the main shaft. Each pair of main pinions are in mesh with two pairs of main gears rotatable about fixed axes. Each main gear has a crankpin projecting therefrom and operatively coupled to the ram. This drive system makes possible the reduction of the height of the press.

Abstract: A reliable and inexpensive solar module is disclosed. The solar module comprises a thin-film type photovoltaic cell array formed on a glass superstrate, leaving a margin of an appropriate width along the periphery of the glass superstrate, and a resin layer coated on the photovoltaic cell array and the peripheral margin of the glass superstrate. The solar module further comprises a backcover adhered by the resin layer to cover the photovoltaic cell array and the peripheral margin of the glass superstrate. The resin layer is preferably made of a fluoropolymer derived from a compound containing a perfluoroalkylene and active hydrogen atoms.

Abstract: A failure detecting apparatus for a dual valve provided in a pneumatic circuit for a slide of a press machine, which comprises an air tank containing compressed air therein, a clutch and brake mechanism for the slide selectively connectible with the air tank, a pair of solenoid valves connected in parallel with the air tank and the clutch and brake mechanism, each of the solenoid valves having two positions wherein the clutch and brake mechanism is connected to atmosphere when the solenoid valve is at first position and is connected to the air tank when the solenoid valve is at second position, and a pressure operated switch interposed between the solenoid valves and the clutch and brake mechanism wherein the pressure operated switch is adapted to be turned on and off for each cycle of the slide when both solenoid valves are in good working order.