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    • 1. 发明授权
    • Three layer aluminum deposition process for high aspect ratio CL contacts
    • 三层铝沉积工艺,用于高纵横比CL接触
    • US06794282B2
    • 2004-09-21
    • US10305063
    • 2002-11-27
    • Thomas GoebelWerner RoblRajeev MalikMihel Seitz
    • Thomas GoebelWerner RoblRajeev MalikMihel Seitz
    • H01L2144
    • H01L27/10888H01L21/76882
    • A method of forming a semiconductor device includes providing a semiconductor device including a conductor formed thereon. A dielectric layer is formed over the conductor and a recess is formed in the dielectric layer by removing a portion of the dielectric layer to expose at least a portion of the conductor. A first layer of aluminum is deposited over the top surface of the dielectric, along the sidewalls of the dielectric layer and over the exposed portion of the conductor without altering the temperature of the semiconductor device. A second layer of aluminum is deposited over the first layer of aluminum at a temperature greater than about 300° C. A third layer of aluminum is deposited over the second layer of aluminum so as to completely fill the recess in the dielectric layer. The third layer of aluminum is slow deposited at a temperature greater than about 300° C.
    • 形成半导体器件的方法包括提供包括形成在其上的导体的半导体器件。 在导体上形成电介质层,并且通过去除电介质层的一部分以露出导体的至少一部分,在电介质层中形成凹陷。 沿着电介质层的侧壁并在导体的暴露部分之上沉积在电介质的顶表面上的第一层铝,而不改变半导体器件的温度。 在大于约300℃的温度下,在第一层铝上沉积第二层铝。第三层铝沉积在第二层铝上,以便完全填充介电层中的凹槽。 第三层铝在大于约300℃的温度下缓慢沉积
    • 4. 发明授权
    • Integration scheme for metal gap fill, with fixed abrasive CMP
    • 金属间隙填充的集成方案,固定磨料CMP
    • US06943114B2
    • 2005-09-13
    • US10084194
    • 2002-02-28
    • Peter WrschkaWerner RoblThomas Goebel
    • Peter WrschkaWerner RoblThomas Goebel
    • H01L21/3105H01L21/302H01L21/461
    • H01L21/31053Y10S438/959
    • In a method of planarizing a semiconductor wafer, the improvement comprising polishing above metal interconnect lines to uniformly polish the topography of the wafer to a predetermined endpoint on the wafer sufficiently close above the metal interconnect lines, yet far enough away from the lines to prevent damage to the lines, comprising:a) filling gaps between metal interconnect lines of an inter metal dielectric in a wafer being formed, by depositing HDP fill on top of the metal interconnects, between the metal interconnects, and on the surface of a dielectric layer between the metal interconnects to create an HDP overfill;b) contacting the surface of HDP overfill of the processed semiconductor wafer from step a) with a fixed abrasive polishing pad; andc) relatively moving the wafer and the fixed abrasive polishing pad to affect a polishing rate sufficient to reach a predetermined endpoint and uniformly planar surface on the wafer sufficiently close above the metal interconnect lines and yet far enough away from the lines to prevent damage to the lines.
    • 在平坦化半导体晶片的方法中,改进包括在金属互连线上方抛光,以将晶片的形貌均匀地抛光到晶片上的预定端点上,该晶圆足够靠近金属互连线上方,远离线路远离线以防止损坏 包括:a)通过在金属互连件的顶部,金属互连件之间以及电介质层的表面上沉积HDP填充物,填充在形成的晶片之间的金属互连线之间的间隙, 金属互连以产生HDP溢出; b)使来自步骤a)的经处理的半导体晶片的HDP的填充表面与固定的研磨抛光垫接触; 以及c)相对移动所述晶片和所述固定研磨抛光垫以影响足以达到所述晶片上的预定端点和所述晶片上的均匀平坦表面的抛光速率,所述平坦表面足够靠近所述金属互连线,并且远离所述线远离所述线,以防止损坏 线条。