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    • 117. 发明授权
    • Bonding pad interface
    • 键盘接口
    • US06706622B1
    • 2004-03-16
    • US09949207
    • 2001-09-07
    • John P. McCormick
    • John P. McCormick
    • H01L2144
    • H01L24/11H01L2224/05001H01L2224/05027H01L2224/0508H01L2224/05172H01L2224/05184H01L2224/05572H01L2224/13099H01L2924/01029H01L2924/01073H01L2924/01079H01L2924/014H01L2924/04953H01L2924/14H01L2224/05644H01L2924/00014H01L2224/05147H01L2224/05155
    • A method for providing under bump metallization on a substrate. Trenches are formed in the substrate, and a layer of first electrically conductive material is formed over the substrate. The layer of the first electrically conductive material substantially fills the trenches and substantially covers the substrate between the trenches in a contiguous sheet. The layer of the first electrically conductive material is thinned to an end point where the layer of the first electrically conductive material is substantially reduced in thickness, but still forms the contiguous sheet between the trenches. A layer of photoresist is applied over the layer of the first electrically conductive material to define openings. A second electrically conductive material is deposited into the openings. The photoresist layer is removed, and the layer of the first electrically conductive material in the contiguous sheet between the trenches is removed to isolate the first electrically conductive material in the trenches. Because the layer of the first electrically conductive material is not completely removed in the areas between the trenches, the first electrically conductive material may be used as an electrode for the electroplate deposition of the second electrically conductive material. Thus, the under bump metallization can be produced in a more economical manner. If the layer of the first electrically conductive material were to be thinned to the point where the first electrically conductive material was only left in the trenches, then it would not be feasible to used the layer of the first electrically conductive material as an electrode, and thus it would further not be feasible to electroplate the second electrically conductive material.
    • 一种用于在衬底上提供凸块下金属化的方法。 在衬底中形成沟槽,并且在衬底上形成第一导电材料层。 第一导电材料的层基本上填充沟槽并基本上覆盖连续片材中沟槽之间的衬底。 第一导电材料的层被薄化到第一导电材料层的厚度基本上减小的端点,但是仍然在沟槽之间形成连续的片材。 在第一导电材料的层上施加一层光致抗蚀剂以限定开口。 第二导电材料沉积到开口中。 去除光致抗蚀剂层,并且移除在沟槽之间的邻接片材中的第一导电材料层,以隔离沟槽中的第一导电材料。 因为第一导电材料的层在沟槽之间的区域中没有被完全去除,所以第一导电材料可以用作电极沉积第二导电材料的电极。 因此,能够以更经济的方式制造凸块下金属化。 如果将第一导电材料的层变薄到第一导电材料仅留在沟槽中的点,则将第一导电材料层用作电极是不可行的,以及 因此电镀第二导电材料将不可行。
    • 119. 发明授权
    • Method of forming heat sink and semiconductor chip assemblies
    • 形成散热片和半导体芯片组件的方法
    • US06706560B2
    • 2004-03-16
    • US10094300
    • 2002-03-08
    • Joseph M. Brand
    • Joseph M. Brand
    • H01L2144
    • H01L23/4334H01L2924/0002H01L2924/00
    • Methods for applying a heat sink to a semiconductor chip. A heat sink frame is removably attached to one or more heat sinks and is used to align the heat sinks with corresponding semiconductor chips. The semiconductor chips are preferably positioned on a semiconductor chip frame. The heat sinks are aligned with the semiconductor chips either before or after the semiconductor chips are substantially encapsulated within a molding material. The heat sink frame is detached from the heat sinks at a selected time after the heat sinks and the semiconductor chips have been aligned, whereby the heat sinks remain combined with the semiconductor chips. Detachment of the heat sink frame may be conducted before or, alternatively, after the semiconductor chips have been encapsulated. The methods of the invention facilitates the efficient and reliable application of heat sinks to semiconductor chips.
    • 将散热器应用于半导体芯片的方法。 散热器框架可移除地附接到一个或多个散热器,并且用于将散热器与对应的半导体芯片对准。 半导体芯片优选地位于半导体芯片框架上。 在半导体芯片基本上封装在模制材料中之前或之后,散热器与半导体芯片对齐。 在散热器和半导体芯片已经对准之后的选定时间,散热器框架与散热器分离,由此散热器保持与半导体芯片的组合。 散热器框架的分离可以在半导体芯片被封装之前或之后进行。 本发明的方法有助于将散热器有效和可靠地应用于半导体芯片。