会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • Lead-free solder
    • 无铅焊料
    • US20030133826A1
    • 2003-07-17
    • US10045004
    • 2002-01-15
    • Kwang-Lung LIN
    • Kwang-Lung LinKang-I ChenShou-Chang ChengJia-Wei Huang
    • C22C013/00
    • B23K35/262C22C13/00
    • This invention discloses a lead-free SnnullZnnullAlnullAg solder alloy, which is composed of 7-10 wt % of Zn, up to 0.5 wt % of Al, up to 4.0 wt % of Ag, and the balance of Sn; and a lead-free SnnullZnnullAlnullAgnullGa solder alloy, which is composed of 7-10 wt % of Zn, up to 0.5 wt % of Al, up to 4.0 wt % of Ag, up to 4.0 wt % of Ga; and the balance of Sn. The lead-free solder alloys of the present invention have better tensile strength and elongation than the conventional SnnullPb solder alloys. In addition, the lead-free solder alloys of the present invention have a melting point lower than 200null C., which is close to the 183.5null C. of an eutectic SnnullPb alloy.
    • 本发明公开了一种无铅Sn-Zn-Al-Ag焊料合金,其由7-10重量%的Zn,至多0.5重量%的Al,至多4.0重量%的Ag组成,余量为Sn ; 和无铅Sn-Zn-Al-Ag-Ga焊料合金,其由7-10重量%的Zn,至多0.5重量%的Al,至多4.0重量%的Ag,至多4.0重量% 的Ga 和Sn的平衡。 本发明的无铅焊料合金具有比常规Sn-Pb焊料合金更好的拉伸强度和伸长率。 此外,本发明的无铅焊料合金的熔点低于200℃,接近于共晶Sn-Pb合金的183.5℃。
    • 5. 发明授权
    • Solder bump fabricated method incorporate with electroless deposit and
dip solder
    • 焊接凸块制造方法结合无电沉积和浸焊
    • US5795619A
    • 1998-08-18
    • US571401
    • 1995-12-13
    • Kwang-Lung LinChwan-Ying Lee
    • Kwang-Lung LinChwan-Ying Lee
    • C23C18/31C23C18/50B05D5/12
    • C23C18/50C23C18/31
    • A process for preparing a solder bump can be prepared by the following procedure. The chip package was cleaned with an alkali or acid solution followed by Zn displacement (zincating)in a displacement solution which comprises NaOH, Z.sub.n o, potassium sodium tartrate and sodium nitrate. After zinc displacement the chip package was performed the electroless Ni--Cu--P deposit in the strong reducing solution which contains NaH.sub.2 PO.sub.2. The chip package deposited with Ni--Cu--P was then dipped into an organic solution as flux which is a mixture of the stearic acid and glutamic acid. Finally, dip soldering of the Ni--Cu--P deposited chip packages in a molten solder bath at a temperature 40.degree..about.80.degree. C. higher than the melting point of the corresponding Pb--Sn alloy.
    • 制备焊料凸点的方法可以通过以下步骤制备。 用碱或酸溶液清洗芯片包装,然后在包含NaOH,Zno,酒石酸钾钠和硝酸钠的置换溶液中进行Zn置换(锌化)。 锌置换后,在含有NaH2PO2的强还原溶液中进行无电解Ni-Cu-P沉积物的芯片封装。 然后将沉积有Ni-Cu-P的芯片封装浸入作为硬脂酸和谷氨酸的混合物的助熔剂的有机溶液中。 最后,将Ni-Cu-P沉积的芯片封装浸入熔融焊料浴中,比相应的Pb-Sn合金的熔点高40℃。