Abstract: A probe apparatus includes a movable mounting table for holding a test object provided with a plurality of power devices including diodes; a probe card arranged above the mounting table with probes; a measuring unit for measuring electrical characteristics of the power devices by bringing the probes into electrical contact with the test object in a state that a conductive film electrode formed on at least a mounting surface of the mounting table is electrically connected to a conductive layer formed on a rear surface of the test object; and a conduction member for electrically interconnecting the conductive film electrode and the measuring unit when measuring the electrical characteristics. The conduction member is interposed between an outer peripheral portion of the probe card and an outer peripheral portion of the mounting table.

Abstract: A probe apparatus includes a movable mounting table for holding a test object provided with a plurality of power devices including diodes; a probe card arranged above the mounting table with probes; a measuring unit for measuring electrical characteristics of the power devices by bringing the probes into electrical contact with the test object in a state that a conductive film electrode formed on at least a mounting surface of the mounting table is electrically connected to a conductive layer formed on a rear surface of the test object; and a conduction member for electrically interconnecting the conductive film electrode and the measuring unit when measuring the electrical characteristics. The conduction member is interposed between an outer peripheral portion of the probe card and an outer peripheral portion of the mounting table.

Abstract: Disclosed is a series and a series group of orthogonal gear reducers with motors. A motor cover is disposed separately from a gear box. In each of sub-series (frame number) wherein the gear boxes have the same fitting dimensions (sizes) to be mounted to a mating machines, the following requirements are satisfied: 1 The fitting dimension between the motor cover and the gear box is made constant; 2 An axial shifted amount between a hypoid pinion and a hypoid gear is made constant; 3 an outside diameter of the hypoid gear is made almost constant; and 4 a distance between the center of the hypoid gear, and the mounting surface for the motor cover and the gear box is made constant.