发明申请
US20050173498A1 Brazing filler metal, assembly method for semiconductor device using same, and semiconductor device
失效
钎焊金属,使用其的半导体器件的组装方法以及半导体器件
- 专利标题: Brazing filler metal, assembly method for semiconductor device using same, and semiconductor device
- 专利标题(中): 钎焊金属,使用其的半导体器件的组装方法以及半导体器件
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申请号: US11068527申请日: 2005-02-28
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公开(公告)号: US20050173498A1公开(公告)日: 2005-08-11
- 发明人: Nobuki Mori , Kei Morimoto
- 申请人: Nobuki Mori , Kei Morimoto
- 优先权: JP2002-273598 20020919
- 主分类号: B23K1/00
- IPC分类号: B23K1/00 ; B23K35/02 ; B23K35/26 ; H01L21/60 ; H01L23/488 ; B23K31/02
摘要:
In conventional Sn/Sb type brazing filler metals, there are disadvantages that large grains in a β′ phase are likely to deposit and that cracks are likely to occur in the elements and the bonded portion, and that voids are formed when the above described special coating is provided on the die bonding plane of the semiconductor element. The brazing filler metal of the present invention comprises 5 to 20 weight % of Sb and 0.01 to 5 weight % of Te, with the balance being Sn and incidental impurities, or a brazing filler metal comprises 5 to 20 weight % of Sb, 0.01 to 5 weight % of Te, 0.001 to 0.5 weight % of P, with the balance being Sn and incidental impurities.
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