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Title:
Bi-Te SEMICONDUCTOR ELEMENT AND Bi-Te THERMO-ELECTRIC MODULE
Document Type and Number:
Japanese Patent JP2002134796
Kind Code:
A
Abstract:

To provide a Bi-Te thermo-electric module of low-cost, rigid, and high reliability by jointing a Bi-Te semiconductor to an electrode with solder.

There are provided a plurality of p-type Bi-Te semiconductors and n-type Bi-Te semiconductors (3), a plurality of lower-part electrodes (2), which are connected to the lower surfaces of a pair of p-type Bi-Te semiconductor and n-type Bi-Te semiconductor via an Sn solder layer, and a plurality of upper-part electrodes (4) which are connected through the Sn solder layer to the upper surfaces of a pair of p-type Bi-Ta semiconductor and n-type Bi-Te semiconductor different from the pair, to which the lower-part electrode is connected. A plurality of p-type Bi-Te semiconductors and n-type Bi-Te semiconductors are connected in series or in parallel. Here, the composition of the Sn solder layer is represented by general expression Sn-X, (where, X is αBi, βSb, or αBi+βSb; α is 50 wt.% or below; and β is 10 wt.% or lower).


Inventors:
MATSUMOTO ATSUO
TAGUCHI KOHEI
TERAKADO KENJI
Application Number:
JP2000319537A
Publication Date:
May 10, 2002
Filing Date:
October 19, 2000
Export Citation:
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Assignee:
NHK SPRING CO LTD
International Classes:
C22C12/00; C22C13/02; H01L35/16; H01L35/32; H01L35/34; (IPC1-7): H01L35/16; C22C12/00; C22C13/02; H01L35/32; H01L35/34
Domestic Patent References:
JPH0423368A1992-01-27
JP2002507321A2002-03-05
Foreign References:
US3079455A1963-02-26
Attorney, Agent or Firm:
Takehiko Suzue (5 outside)