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    • 2. 发明申请
    • COPPER TARGET
    • 铜目标
    • WO2007130888A1
    • 2007-11-15
    • PCT/US2007/067734
    • 2007-04-30
    • HONEYWELL INTERNATIONAL INC.YI, WuwenSTROTHERS, Susan D.
    • YI, WuwenSTROTHERS, Susan D.
    • C23C14/34
    • C23C14/3414C22C9/00
    • The invention includes physical vapor deposition targets formed of copper material and having an average grain size of less than 50 microns and an absence of course-grain areas throughout the target. The invention encompasses a physical vapor deposition target of a copper material and having an average grain size of less than 50 microns with a grain size standard deviation of less than 5% (1-σ) throughout the target. The copper material is selected from copper alloys and high-purity copper material containing greater than or equal to 99.9999% copper, by weight. The invention includes methods of forming copper physical vapor deposition targets. An as-cast copper material is subjected to a multistage processing. Each stage of the multistage processing includes a heating event, a hot-forging event, and a water quenching event. After the multistage processing the copper material is rolled to produce a target blank.
    • 本发明包括由铜材料形成并且具有小于50微米的平均晶粒尺寸并且整个靶材上不存在过程晶粒区域的物理气相沉积靶。 本发明包括铜材料的物理气相沉积靶,其平均粒度小于50微米,其晶粒尺寸标准偏差小于5%(1-s)。 铜材料选自铜合金和含有大于或等于99.9999重量%铜的高纯度铜材料。 本发明包括形成铜物理气相沉积靶的方法。 铸造铜材料经受多级处理。 多级处理的每个阶段包括加热事件,热锻事件和水淬事件。 在多级处理之后,轧制铜材料以产生目标坯料。