Determination of flux coverage
    2.
    发明授权
    Determination of flux coverage 有权
    焊剂覆盖度的测定

    公开(公告)号:US06597444B1

    公开(公告)日:2003-07-22

    申请号:US09627436

    申请日:2000-07-28

    IPC分类号: G01N2100

    摘要: A package assembly is formed by applying flux to a substrate and inspecting the applied flux to determine whether the amount applied is adequate to form reliable interconnections between a device and the substrate. Embodiments include applying a rosin based flux on a laminate substrate and inspecting the coverage of the applied flux by fluorescent spectroscopy.

    摘要翻译: 通过将助焊剂施加到衬底并检查所施加的焊剂以确定所施加的量是否足以在器件和衬底之间形成可靠的互连来形成封装组件。 实施例包括在层压基板上施加松香基焊剂并通过荧光光谱法检查施加的焊剂的覆盖范围。

    Removing flux residue from reflow furnace using active gaseous solvent
    3.
    发明授权
    Removing flux residue from reflow furnace using active gaseous solvent 失效
    使用活性气体溶剂从回流炉中除去助焊剂残留物

    公开(公告)号:US06527164B1

    公开(公告)日:2003-03-04

    申请号:US09584128

    申请日:2000-05-31

    IPC分类号: B23K2800

    CPC分类号: B23K1/206 B23K1/008

    摘要: A method of cleaning residue on surfaces in a reflow furnace includes introducing a solvent into the furnace chamber; reacting the solvent with the residue to form a product; and, removing the product from the furnace chamber. The solvent is gaseous, such as an etch gas. Also, the product of the reaction between the residue and the solvent can is gaseous. The gaseous product can then be exhausted from the reflow furnace. A reflow furnace for practicing the method is also disclosed.

    摘要翻译: 在回流炉的表面上清洗残渣的方法包括将溶剂引入炉室; 使溶剂与残余物反应以形成产物; 并从炉室中取出产品。 溶剂是气态的,例如蚀刻气体。 此外,残留物和溶剂之间的反应的产物是气态的。 然后气体产物可以从回流炉中排出。 还公开了用于实施该方法的回流炉。