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    • 21. 发明授权
    • Displacement method to grow cu overburden
    • 置换方法来增加覆盖层
    • US06903011B2
    • 2005-06-07
    • US10455650
    • 2003-06-05
    • Chi-Wen LiuYing-Lang Wang
    • Chi-Wen LiuYing-Lang Wang
    • H01L21/288H01L21/4763H01L21/768
    • H01L21/288H01L21/7684H01L21/76879
    • A damascene-formed conductive region having a recess formed at the top surface thereof by a chemical-mechanical polish (CMP) process is repaired or regrown using a displacement method. A displacement material is deposited over the recessed conductive material. The displacement material is removed from a top surface of the insulating layer surrounding the damascene conductive region, and the semiconductor device is placed in a solution. The displacement material reacts with the solution, and copper in the solution is grown as a result of the displacement over the recess of the conductive region. The displacement method results in reducing or eliminating the recess formed by the CMP process.
    • 通过化学机械抛光(CMP)工艺在其顶表面形成具有凹陷的镶嵌形成的导电区域使用位移法进行修复或重新生长。 位移材料沉积在凹陷的导电材料上。 从位于镶嵌导电区域的绝缘层的上表面除去位移材料,将半导体器件置于溶液中。 位移材料与溶液反应,并且溶液中的铜由于在导电区域的凹部上的位移而生长。 位移法导致减少或消除由CMP工艺形成的凹槽。