| 摘要 |
<p>An electric device provided with a pair of electrodes, three substrates, and positive temperature coefficient elements which are interposed among the substrates and have metallic layers on both surfaces. The outer two substrates have metallic layers on their internal surfaces, and the metallic layers are electrically connected to one of the paired electrodes and to the metallic layers of the positive temperature coefficient elements facing the metallic layers of the substrate. The central substrate has metallic layers on both surfaces and the metallic layers are electrically connected to the other electrode of the paired electrodes and to the metallic layers of the positive temperature coefficient elements facing the metallic layers of the central substrate. The electric device has increased areas of PTC elements without increasing the projected area of the device as a whole.</p> |
