Implemental state inspection manner and implemental state survey instrument null

摘要

PROBLEM TO BE SOLVED: To provide a mounting state inspecting method for electronic part in which the mounting state can be inspected even for an electronic part having an upper surface where diffuse reflection does not take place easily. ;SOLUTION: A measuring point set at the position of an electronic part on the upper surface of a board 2 mounting an electronic part 3 is irradiated, from above, with laser light generated from a laser generator 4 and the diffuse reflection light from the measuring point is received by a photodetector 6 in order to inspect the mounting state of the electronic part 3. In such a method for inspecting the mounting state of an electronic part, a decision is made an electronic part 3 having a structure where diffuse reflection does not take place easily, e.g. a glass coat part 3a, is mounted if diffuse reflection light of a given intensity or above is not received and an effective current required for measuring the height is not detected at a current detecting section 11.;COPYRIGHT: (C)1999,JPO