| 摘要 |
Four non-magnetic substrate members are coupled in parallel with each other by a pair of guide plates, and a plurality of receiving grooves, which can slidably receive strip portions of lead frames, are formed in the upper surface of each substrate member in parallel with each other. Permanent magnets for attracting the lead frames are fixed in proximity to bottoms of the receiving grooves. Lead frames, to which electronic component elements are mounted, can be easily inserted into and taken out from the receiving grooves by simply sidewardly slid into and from the receiving grooves, and the lead frames inserted in the receiving grooves are stably held by the permanent magnets due to magnetic force.
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