| 摘要 |
A mount device which permits an IC to be detachably attached to a circuit board without difficulty. A conductor pattern having conductors arranged at the same interval as the terminal pins of the IC is formed on the circuit board, and a fixture frame is put on the circuit board to encircle the conductor pattern. The IC is put in the fixture frame, allowing the terminal pins lying on the conductors of the conductor pattern in one-to-one correspondence relation. An intermediate frame is put on the fixture frame, and then an uppermost frame is put on the intermediate frame, which is thus sandwiched between the uppermost frame and the fixture frame. The uppermost frame is fastened to the fixture frame with screws. The intermediate frame has pushing projections formed on its bottom surface, and these pushing projections are applied to the terminal pins. Thus, the uppermost frame when fastened to the fixture frame with screws, will push the terminal pins against the conductors of the conductor pattern 5 via the pushing projections. Projecting screws are inserted in the through holes of the uppermost frame until their ends abut on the intermediate lengths of the pushing projections, thereby preventing the upward bends of the pushing projections. The telescoping of the intermediate frame into the fixture frame effectively prevents the wavy deformation of the pushing projections. Thus, it is increasingly assured that the terminal pins be put in contact with the conductors of the conductor pattern.
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