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    • 7. 发明申请
    • Integrated dual damascene RIE process with organic patterning layer
    • 集成双镶嵌RIE工艺与有机图案层
    • US20060040501A1
    • 2006-02-23
    • US10921007
    • 2004-08-17
    • William AmericaSteven Johnston
    • William AmericaSteven Johnston
    • H01L21/302
    • H01L21/76811H01L21/31116H01L21/31138H01L21/31144H01L21/76813
    • A dual damascene conductor structure is formed on a substrate with an exposed conductor on top covered by a buried cap, a dielectric layer (DL) and an organic layer (OL). Form trench patterning hard mask and via hard mask layers over the OL. Form a trench pattern hole through the via hard mask layer; and form a via pattern hole through the via hard mask layer and the trench hard mask layer. Etch the via pattern hole into the OL and then etch a via pattern hole into the DL. Etch away the trench pattern layer below the trench pattern hole. Etch away the OL layer below the trench pattern hole. Etch the via hole through the DL exposing the cap while simultaneously partially etching the DL to a final trench depth to form a trench into the DL below the trench pattern hole, with the trench having a bottom above the cap and sidewalls in the DL.
    • 双镶嵌导体结构形成在衬底上,其中暴露的导体顶部由掩埋帽,介电层(DL)和有机层(OL)覆盖。 形成沟槽图案化硬掩模,并通过OL上的硬掩模层。 通过通孔硬掩模层形成沟槽图案孔; 并且通过通孔硬掩模层和沟槽硬掩模层形成通孔图案孔。 将通孔图案孔蚀刻到OL中,然后将通孔图案孔蚀刻到DL中。 蚀刻沟槽图案孔下方的沟槽图案层。 蚀刻沟槽图案孔下面的OL层。 通过穿过盖的DL蚀刻通孔,同时将DL部分地蚀刻到最终的沟槽深度,以在沟槽图案孔下方的DL中形成沟槽,沟槽在盖的顶部和DL的侧壁中。
    • 9. 发明授权
    • Process for preparing a test casting and test casting prepared by the process
    • 用于制备由该方法制备的测试铸造和测试铸件的方法
    • US08056604B2
    • 2011-11-15
    • US12554330
    • 2009-09-04
    • Flavia Cunha DuncanJorg KrokerSteven Johnston
    • Flavia Cunha DuncanJorg KrokerSteven Johnston
    • B22D46/00
    • B22D46/00B22D2/00
    • A test casting is useful for predicting the severity of skin that will form when compacted graphite iron or ductile iron is cast using a selected foundry mix. The mold is made from the foundry mix and has a gating system with at least two ingates, and with a hollow cylindrical shape associated with each ingate. The hollow cylindrical shapes are substantially the same height, but the diameter of each varies by at least 20% from the diameter of any of the other cylindrical shapes. Molten metal poured into the gating system fills each of the hollow cylindrical shapes. When the metal cools and solidifies, a solid cylinder of the metal is produced in each hollow cylindrical shape. The solid metal cylinders, each with a distinct diameter, are cut and inspected to measure the skin formed thereon.
    • 测试铸件可用于预测当使用选定的铸造混合物铸造压实的石墨铁或球墨铸铁时将形成的皮肤的严重性。 模具由铸造混合物制成并且具有至少两个浇口的浇注系统,并且具有与每个浇口相关联的中空圆柱形形状。 中空的圆柱形形状基本上是相同的高度,但是每个直径从任何其它圆柱形状的直径变化至少20%。 浇注浇注系统中的熔融金属填充每个中空圆柱形状。 当金属冷却并固化时,在每个中空圆筒形状中制造金属的实心圆柱体。 每个具有不同直径的固体金属圆筒被切割和检查以测量其上形成的皮肤。