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    • 41. 发明授权
    • Shield for an electrostatic chuck
    • 屏蔽静电卡盘
    • US5748434A
    • 1998-05-05
    • US663886
    • 1996-06-14
    • Kent RossmanBrian LueFred C. Redeker
    • Kent RossmanBrian LueFred C. Redeker
    • B23Q3/15H01L21/683H02N13/00
    • H02N13/00H01L21/6831H01L21/6833
    • A shield (5) for an electrostatic chuck (4) includes a first shield member (60) circumscribing the chuck and a second shield member (62) supported over the first shield member. The second shield member has an upper surface surrounding the wafer and exposed to deposition from gases within the process chamber. Splitting the shield into two members increases the ratio of exposed surface to thermal mass of the second shield member, which increases the temperature of the second shield member during processing, thereby decreasing the rate of deposition thereon. In addition, the clean rate or deposition removal rate of the shield is typically a function of its temperature (i.e., the hotter the shield becomes during processing, the faster it can be cleaned). Therefore, the clean rate of the second shield member will be increased, thereby enhancing the throughput of the process.
    • 用于静电卡盘(4)的屏蔽(5)包括围绕卡盘的第一屏蔽构件(60)和支撑在第一屏蔽构件上的第二屏蔽构件(62)。 第二屏蔽构件具有围绕晶片的上表面并暴露于处理室内的气体沉积。 将屏蔽分成两个部件增加了第二屏蔽部件的暴露表面与热质量的比例,这在加工期间增加了第二屏蔽部件的温度,从而降低了其上的沉积速率。 此外,屏蔽的清洁速率或沉积去除速率通常是其温度的函数(即,加工期间屏蔽变得越热,其可以被清洁的速度越快)。 因此,第二屏蔽部件的清洁率将增加,从而提高过程的吞吐量。
    • 43. 发明授权
    • Plasma source for HDP-CVD chamber
    • HDP-CVD室的等离子体源
    • US5944902A
    • 1999-08-31
    • US98150
    • 1998-06-16
    • Fred C. RedekerTetsuya Ishikawa
    • Fred C. RedekerTetsuya Ishikawa
    • C23C16/50H01J37/32H01L21/205H01L21/31H05H1/46C23C16/00
    • H01J37/321H05H1/46H05H2001/4667
    • A plasma system is disclosed for processing a substrate and includes a chamber body defining a plasma cavity therein and having a centrally located gas inlet, and a top antenna configured in position relative to the plasma cavity to produce a center-peaked plasma density profile above the substrate during operation. The top antenna has a central passage which surrounds the centrally located gas inlet. A side antenna is preferably configured and positioned relative to the plasma chamber to produce a hollow-center plasma density profile above the substrate during operation. Together, the top and side antennas and the centrally located gas inlet provide a uniform plasma directly over the surface of the substrate to be processed.
    • 公开了一种用于处理衬底的等离子体系统,并且包括在其中限定等离子体空腔并具有居中定位的气体入口的室主体,以及配置成相对于等离子体空间位置的顶部天线,以产生高于该等离子体腔的中心峰值等离子体密度分布 底物。 顶部天线具有围绕中心位置的气体入口的中心通道。 优选地,侧面天线相对于等离子体室构造和定位,以在操作期间在衬底上产生空心中心等离子体密度分布。 一起,顶部和侧面天线以及位于中心的气体入口在待处理的基板的表面上直接提供均匀的等离子体。