Method and apparatus for processing semiconductor substrates
    41.
    发明专利
    Method and apparatus for processing semiconductor substrates 有权
    用于处理半导体衬底的方法和装置

    公开(公告)号:JP2005252241A

    公开(公告)日:2005-09-15

    申请号:JP2005023999

    申请日:2005-01-31

    CPC classification number: H01L21/28556 H01L21/31658

    Abstract: PROBLEM TO BE SOLVED: To provide a method of effectively removing gas in a reaction chamber to exchange gas atmospheres while minimizing an influence that a change of a gas atmosphere will exert on a resultant product of a process. SOLUTION: Substrates in a reaction chamber are sequentially exposed to at least three gas atmospheres: a first atmosphere of a first purge gas, a second atmosphere of a process gas and a third atmosphere of a second purge gas. The gases are introduced into the reaction chamber from one end of the reaction chamber and discharged from the opposite end. Successive gases entering the chamber are selected so that a stable interface with the immediately preceding gas can be maintained. For example, when the gases are fed into the chamber at the chamber's top end and are exhausted at the bottom end, the gases are chosen with successively lower molecular weights. In effect, each gas atmosphere stays on top of the previously introduced gas atmosphere and pushes the gas atmosphere from the top down to exhaust out of the reaction chamber. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种有效地除去反应室中的气体以交换气体气体的方法,同时最小化气体气氛的变化对过程的所得产物将产生的影响。 解决方案:反应室中的底物依次暴露于至少三种气体环境:第一吹扫气体的第一气氛,处理气体的第二气氛和第二吹扫气体的第三气氛。 气体从反应室的一端引入反应室并从相对端排出。 选择进入腔室的连续气体,使得能够保持与前一个气体的稳定界面。 例如,当气体在室的顶端进料到室中并在底端被排出时,气体以连续较低的分子量被选择。 实际上,每个气体气体保持在先前引入的气体气氛的顶部,并且从顶部向上推动气体气体排出反应室。 版权所有(C)2005,JPO&NCIPI

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