Abstract:
A polysilicon film evaluation apparatus is provided which enables objective automatic evaluation of the status of a polysilicon film, as formed to a high accuracy in a contact-free fashion. To this end, there is provided a polysilicon film evaluation apparatus 1 including a stage 25 on which to set a substrate W carrying a polysilicon film, an optical system for observation with the visible light 4, 8, 12, 40a for illuminating the visible light on a substrate W on the stage to photograph a surface image of the polysilicon film on the substrate W to effect auto-focusing, an optical system for observation with UV light 6, 10, 40b for illuminating the UV light on the substrate on the stage to acquire a surface image of the polysilicon film of the substrate, auto-focused using the optical system for observation with the visible light, and an evaluating unit 51 for evaluating the linearity and periodicity of a spatial structure of the film surface of the polysilicon film, from a surface image of the polysilicon film obtained by the optical system for observation with UV light, to evaluate the status of the polysilicon film based on the results of evaluation of the linearity and periodicity.
Abstract:
A temperature meter for measuring temperature of a measurement target object to which a temperature sensor cannot be fixed directly is formed by a temperature sensor configured to measure an observed temperature in a vicinity of the measurement target object; a timer configured to measure a temperature observation time; and a calculation processor configured to calculate the temperature of the measurement target object according to the observed temperature and the temperature observation time by carrying out a prescribed calculation processing.
Abstract:
When electric elements are formed on a ceramic bar or the like, the positional displacement of the respective elements occurs due to a division exposing process or the like. An object of the present invention is to provide a device and a method which unify the non-polished portion of the respective elements by conducting polishing while a complicated deformation or the like is given to the ceramic bar. To achieve this object, the ceramic bar or like is held by using a jig, and a plurality of loads are applied to portions of the jig where the ceramic bar or the like is held, to thereby deform the ceramic bar or the like and polish the element in that state. In this situation the load applied points are disposed so as to avoid the boundaries of the division exposure.
Abstract:
In the polishing work for forming a crown shape on a ceramic bar bearing a plurality of conversion units for the magnetic heads, the present invention is to provide a well-controlled satisfactory shape by pressing the ceramic bar, provided with plural grooves perpendicular to the longitudinal direction and on a surface opposed to the polished plane, to a substantially concave polishing plane through an elastic member principally composed of rubber, then measuring the magneto resistivity of an element provided in the conversion unit of the magnetic head, and adjusting the pressure at the crown forming operation by a closed loop control based on the result of such measurement.
Abstract:
An apparatus for inspecting the outward appearance of each of IC packages stored in an embossed tape includes a drive wheel having an outer periphery about which the embossed tape is wound. The drive wheel is rotatable in a vertical plane for moving the embossed tape. A pair of cameras are so mounted as to face the outer periphery of the drive wheel at its upwardly and downwardly moving portions, respectively, and are used to produce two different images of each IC package from two different angles through a cover tape bonded to the embossed tape for enclosing the IC packages. The apparatus prevents any diffused reflection of light by the cover tape and any inclination of each IC package during its inspection.
Abstract:
A device for verifying or measuring a minimum value of a previously applied torque on a workpiece such as bolt, nut, etc., includes a motor, a reduction gear assembly, a torque transducer and a fastener engaging member, including a rotatably spindle. The motor causes the spindle to rotate. A torsion bar interposed the spindle and the motor absorbs the inertia of the motor when the motor is stopped to minimize torque overshoot, as well as taking up the rotation generated by the motor immediately upon engagement with a workpiece. An angle encoder senses any rotation of the workpiece caused by the rotation of the spindle. Any rotation of the workpiece means that the previously applied torque is below a minimum predetermined value.
Abstract:
There is disclosed a constant-speed, fastener tightening method using a nut runner for setting the final tightened state of the fastener in terms of tightening torque, characterized in that the fastener is tightened by maintaining the rotative speed of the nut runner at a constant speed regardless of variations in tightening loads.
Abstract:
An apparatus for lapping a workpiece including a plurality of magnetic heads supported by a tool is disclosed. The lapping apparatus comprises a rotary lapping table, a lapping head attachment frame, an adjuster ring resiliently supported by the frame, a lapping head attached to the adjuster ring, a tilting assembly attached to the lapping head, and an up and down movable back plate pivotally attached to the lapping head. The apparatus further comprises first actuators or cylinders for correcting balance by applying forces on right and left sides of the pivotal point of the back plate, and second actuators or cylinders for correcting bow of the workpiece by applying operating forces on a plurality of predetermined locations of the tool so that the moving directions of movable parts of the second actuator means are substantially parallel with the directions of the operating forces.
Abstract:
A direct coal fired type gas turbine combined power generation system comprises a pressurized gasifier provided with a gas outlet, a gas cooling unit provided for the gas outlet of the pressurized gasifier, a high temperature dust collector unit connected through a line to a gas cooling unit, a gas turbine combustor connected through a line to the dust collector unit, a gas turbine connected through a line to the gas turbine combustor, a gas turbine generator connected through an output shaft to the gas turbine, a heat recovery boiler connected to the gas turbine, a gas refining unit disposed in association with the heat recovery boiler and connected through a line at an upstream side thereof to the gas cooling unit, a steam turbine connected through a line to a downstream side of the heat recovery boiler and the gas cooling unit through a line and a steam turbine generator connected through an output shaft to the steam turbine.