(19)
(11) EP 2 099 580 A1

(12)

(43) Date of publication:
16.09.2009 Bulletin 2009/38

(21) Application number: 03797594.3

(22) Date of filing: 12.09.2003
(51) International Patent Classification (IPC): 
B23K 35/26(2006.01)
H05K 3/34(2006.01)
(86) International application number:
PCT/JP2003/011730
(87) International publication number:
WO 2004/026527 (01.04.2004 Gazette 2004/14)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 19.09.2002 JP 2002273598

(71) Applicant: SUMITOMO METAL MINING COMPANY LIMITED
Tokyo 105 (JP)

(72) Inventors:
  • MORI, Nobuki SUMITOMO METAL MINING METAL CO.,LTD.
    Oume-shi, Tokyo 198-0025 (JP)
  • MORIMOTO, Kei SUMITOMO METAL MINING METAL CO.,LTD.
    Oume-shi, Tokyo 198-0025 (JP)

(74) Representative: Morelle, Guy Georges Alain 
Cabinet Morelle & Bardou S.C. 9 Avenue de l'Europe B.P. 72253
31522 Ramonville Cedex
31522 Ramonville Cedex (FR)

   


(54) SOLDERING FILLER METAL, ASSEMBLY METHOD FOR SEMICONDUCTOR DEVICE USING SAME, AND SEMICONDUCTOR DEVICE