POSITIVE PROPERTY THEREMISTOR
    1.
    发明专利

    公开(公告)号:JPH10149902A

    公开(公告)日:1998-06-02

    申请号:JP27735597

    申请日:1997-10-09

    Abstract: PROBLEM TO BE SOLVED: To develop and reform a positive property thermistor so that it may be suitable for a short-circuit current limiter of power of >=1MW, with rather small power constitution during normal operation. SOLUTION: This is a positive property thermistor for limitation of an overcurrent, and this has relatively small electric resistance during a normal operation, and this shows relatively large temperature rise, therefore resistance increases, in the case of slight energy increase, and in this positive property thermistor which has at least one heat-resistant metallic compound, at least one heat-resistant metallic compound is the carbide or a boride of heat-resistant metal, and at least one heat-resistant metal is iridium, or yttrium, or a metal in the fourth to sixth sub group of the second main group in the periodic table.

    High power semiconductor multi-chip module e.g. for power electronics

    公开(公告)号:DE19647590A1

    公开(公告)日:1998-05-20

    申请号:DE19647590

    申请日:1996-11-18

    Abstract: The semiconductor chips (25, 26) of the semiconductor module (20) are located on the top side of a metallised ceramic substrate (22) of a first expansion coefft. The substrate underside is located on a base plate (21) of good thermal conductivity and high heat capacity, of a material with a second different expansion coefft. Between the substrate and base plate is fitted an intermediate plate (28) of a material of a third expansion coefft. of a magnitude lying between the first two expansion coeffts. The substrate is firmly coupled to the intermediate plate top side, while the base plate is secured to its underside.

    Electrical multi-contact plug connector

    公开(公告)号:DE19731858A1

    公开(公告)日:1999-01-28

    申请号:DE19731858

    申请日:1997-07-24

    Abstract: The plug connector has at least one pair of cooperating contact combs (1), with the individual contact prongs (2) of each contact comb bent into an S shape. The bridge sections (3) of both contact combs are pressed together, with a current conductor or a current rail pressed between their cooperating contact prongs. A pair of cooperating contact combs may be used for each of the external electrodes of a power semiconductor module with a number of power semiconductor chips.

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