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    • 22. 发明申请
    • Passivating ALD reactor chamber internal surfaces to prevent residue buildup
    • 钝化ALD反应器室内表面以防止残留物积聚
    • US20060040054A1
    • 2006-02-23
    • US10920541
    • 2004-08-18
    • Ronald PearlsteinBing JiStephen Motika
    • Ronald PearlsteinBing JiStephen Motika
    • C23C16/00
    • C23C16/4404
    • This invention is directed to an improved method for preventing deposition residue buildup on the internal surfaces of an ALD reactor chamber. In an ALD deposition process, the surfaces of a substrate are treated with an initiating precursor generating a labile atom reactive with a deposition precursor. Excess initiating precursor is removed from the reactor and the substrate surface then is exposed to a deposition precursor reactive with the labile atom under conditions for generating a fugitive reaction product containing the labile atom and leaving a deposition product. The process is repeated generating alternate layers of initiation and deposition precursor reaction products. The improvement in the ALD process resides in passivating the internal surfaces of the reactor by removing labile atoms reactable with either the initiating or deposition precursors prior to effecting ALD deposition.
    • 本发明涉及一种用于防止在ALD反应器室的内表面上产生沉积残渣的改进方法。 在ALD沉积工艺中,用起始前体处理底物的表面,产生与沉积前体反应的不稳定的原子。 从反应器中除去过量的引发前体,然后在产生含有不稳定原子的离散反应产物并留下沉积产物的条件下将底物表面暴露于与不稳定原子反应的沉积前体。 该过程重复产生起始和沉积前体反应产物的交替层。 ALD方法的改进在于通过在实现ALD沉积之前去除与起始或沉积前体可反应的不稳定原子来钝化反应器的内表面。
    • 24. 发明授权
    • Strip with reduced low-K dielectric damage
    • 具有降低的低K电介质损伤的带
    • US08691701B2
    • 2014-04-08
    • US12463155
    • 2009-05-08
    • Bing JiAndrew D. Bailey, IIIMaryam MoravejStephen M. Sirard
    • Bing JiAndrew D. Bailey, IIIMaryam MoravejStephen M. Sirard
    • H01L21/302
    • H01L21/31138G03F7/427H01L21/31116
    • A method for forming etched features in a low-k dielectric layer disposed below the photoresist mask in a plasma processing chamber is provided. Features are etched into the low-k dielectric layer through the photoresist mask. The photoresist mask is stripped, wherein the stripping comprising at least one cycle, wherein each cycle comprises a fluorocarbon stripping phase, comprising flowing a fluorocarbon stripping gas into the plasma processing chamber, forming a plasma from the fluorocarbon stripping gas, and stopping the flow of the fluorocarbon stripping gas into the plasma processing chamber and a reduced fluorocarbon stripping phase, comprising flowing a reduced fluorocarbon stripping gas that has a lower fluorocarbon flow rate than the fluorocarbon stripping gas into the plasma processing chamber, forming the plasma from the reduced fluorocarbon stripping gas, and stopping the flow of the reduced fluorocarbon stripping gas.
    • 提供了一种用于在等离子体处理室中的光致抗蚀剂掩模下方形成低k电介质层中形成蚀刻特征的方法。 通过光致抗蚀剂掩模将特征蚀刻到低k电介质层中。 剥离光致抗蚀剂掩模,其中剥离包括至少一个循环,其中每个循环包括氟碳汽提相,包括将氟碳汽提气体流入等离子体处理室,从氟碳汽提气体形成等离子体,并停止 进入等离子体处理室中的碳氟化合物汽提气体和减少的氟碳汽提阶段,包括将具有低于碳氟化合物汽提气体的碳氟化合物流速低的氟化碳汽提气体流入等离子体处理室,从还原氟碳汽提气体形成等离子体 ,并停止还原氟烃剥离气体的流动。