| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoelectric module which is superior in wire bondability and durability and can be manufactured at low cost. SOLUTION: By plating or the like, lower electrodes 3 are formed on a lower substrate 1 made of an insulating material such as ceramics, and upper electrodes 4 are formed on an upper substrate 2 made of the same material as that of the lower substrate. Then, the lower substrate 1 and the upper substrate 2 are positioned in parallel with each other so that the lower electrodes 3 face the upper electrodes 4. Next, multiple thermoelectric elements 5 are positioned between the upper and lower electrodes. At this time, a pair of thermoelectric elements (a p-type thermoelectric element 5a and an n-type thermoelectric element 5b) are joined to each lower electrode 3, and the top of a p-type thermoelectric element 5a and that of an n-type thermoelectric element 5b, which are adjacent to each other of the pairs of thermoelectric elements on adjacent lower electrodes, are joined to an upper electrode 4, thereby connecting p-type thermoelectric elements and n-type thermoelectric elements in series. An Au wire is bonded to each of external connecting terminals 6, formed on the lower substrate 1 so that they are respectively brought into contact with a lower electrode 3, to which one of the thermoelectric elements at both ends of the series-connected thermoelectric elements is bonded and thus a thermoelectric module is made. COPYRIGHT: (C)2004,JPO&NCIPI
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