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    • 7. 发明授权
    • Solder alloy of electrode for joining electronic parts and soldering
method
    • 用于接合电子零件的电极焊接合金和焊接方法
    • US6077477A
    • 2000-06-20
    • US011393
    • 1998-02-05
    • Yoshinori SakaiKenichiro SuetsuguAtsushi Yamaguchi
    • Yoshinori SakaiKenichiro SuetsuguAtsushi Yamaguchi
    • B23K35/26H05K3/34C22C13/02
    • B23K35/262H05K3/3463B23K2201/36H05K2201/10909H05K3/3442
    • A lead-free solder alloy of electrode for joining electronic parts fine in texture and excellent in thermal fatigue resistant characteristic is presented. This is a solder alloy for joining electronic parts comprising Sn, Ag, Bi, Cu and In as principal components, and more particularly a solder alloy of electrode for joining electronic parts containing 81 to 91 wt. % of Sn, 3.0 to 6.0 wt. % of Ag, and 0.1 to 2.0 wt. % of Cu. By adding a small amount of Ag to the solder mainly composed of Sn, a fine alloy texture is formed, and texture changes are decreased, so that an alloy excellent in thermal fatigue resistance is obtained. Further, by adding a small amount of Cu, an intermetallic compound is formed, and the junction strength is improved.
    • PCT No.PCT / JP97 / 01969 Sec。 371日期:1998年2月5日 102(e)日期1998年2月5日PCT提交1997年6月6日PCT公布。 公开号WO97 / 46350 PCT 日期1997年12月11日提出了一种用于接合电子部件质地细小且耐热疲劳特性优异的电极的无铅焊料合金。 这是用于连接包含Sn,Ag,Bi,Cu和In的电子部件作为主要组分的焊料合金,更具体地说,用于接合含有81至91重量%的电子部件的电极用焊料合金。 Sn的%,3.0〜6.0重量% 的Ag,0.1〜2.0重量%。 %的铜。 通过向主要由Sn组成的焊料中添加少量的Ag,形成微细的合金织构,并且纹理变化减小,从而获得耐热疲劳性优异的合金。 此外,通过添加少量的Cu,形成金属间化合物,结合强度提高。
    • 10. 发明授权
    • Process and apparatus for flow soldering
    • 流动焊接的工艺和设备
    • US07150387B2
    • 2006-12-19
    • US10668355
    • 2003-09-24
    • Atsushi YamaguchiMasato HiranoYoshinori Sakai
    • Atsushi YamaguchiMasato HiranoYoshinori Sakai
    • B23K1/00
    • B23K1/08B23K1/0016B23K2101/36H05K3/3447H05K3/3468H05K2203/1121
    • An apparatus for mounting an electric component onto a board by means of a lead-free solder material. The apparatus of the present invention has a solder material supplying chamber in which a melt of the solder material is supplied to the board by a solder material supplying unit such that the solder material adheres to a predetermined portion of the board. The apparatus further includes a cooling chamber in which the board is cooled by a cooling unit such that the solder material adhering to the board is rapidly cooled to solidify. A conditioning chamber can also be positioned between the solder material supplying chamber and the cooling chamber. The conditioning chamber conditions the board such that the solder material adhering to the board is ensured to be a completely molten condition at least before the rapid cooling of the solder material.
    • 一种通过无铅焊料将电气部件安装在基板上的装置。 本发明的装置具有焊料供给室,其中焊料材料的熔体通过焊料供给单元供应到板,使得焊料材料粘附到板的预定部分。 该设备还包括冷却室,其中板被冷却单元冷却,使得粘附到板上的焊料材料被快速冷却以固化。 调节室也可以位于焊料供应室和冷却室之间。 调节室对板进行调节,使得至少在焊料材料的快速冷却之前,确保粘附到板的焊料是完全熔融的状态。