(19)
(11) EP 1 643 625 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
22.11.2006 Bulletin 2006/47

(43) Date of publication:
05.04.2006 Bulletin 2006/14

(21) Application number: 05018076.9

(22) Date of filing: 19.08.2005
(51) International Patent Classification (IPC): 
H02M 7/00(2006.01)
 H01L 23/495(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 04.10.2004 JP 2004291002

(71) Applicant: HITACHI, LTD.
Chiyoda-ku Tokyo 100-8280 (JP)

(72) Inventors:
  • Hozoji, Hiroshi, c/o Hitachi, Ltd.
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Morita,Toshiaki, c/o Hitachi, Ltd.
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Shigeta, Satoru, c/o Hitachi Ltd.
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Suwa, Tokihito, c/o Hitachi Ltd.
    Chiyoda-ku, Tokyo 100-8220 (JP)

(74) Representative: Beetz & Partner 
Patentanwälte Steinsdorfstrasse 10
D-80538 München
D-80538 München (DE)

   


(54) Inverter module


(57) The invention relates to an inverter which has a plurality of arms for conducting or cutting off a current and each arm has a switching device (SW) and a first and a second wiring layer for connecting the switching device. The first and second wiring layers of each arm are respectively formed on insulating substrates (180), and one face of the switching device is fixed to the first wiring layer (182), and the second wiring layer (186) and the other face of the switching device are electrically connected by a lead-shaped conductor (LC), and the lead-shaped conductor (LC) has a first and a second connection, and the first connection (172) of the lead-shaped conductor (LC) is fixed to the other face of the switching device, and the second connection (170) of the lead-shaped conductor (LC) is fixed to the second wiring layer (186).
Thereby, a large current of the inverter (200) can be realized and the assembly capacity of the inverter (200) or the vehicle drive unit will be improved.