Apparatus and method for reducing solvent residue in a solvent-type dryer for semiconductor wafers
    4.
    发明授权
    Apparatus and method for reducing solvent residue in a solvent-type dryer for semiconductor wafers 有权
    用于半导体晶片的溶剂型干燥器中减少溶剂残留的装置和方法

    公开(公告)号:US06425191B1

    公开(公告)日:2002-07-30

    申请号:US09837815

    申请日:2001-04-18

    IPC分类号: F26B300

    CPC分类号: H01L21/67034

    摘要: An apparatus and a method for reducing solvent residue in a solvent-type dryer for drying semiconductor wafers have been disclosed. The apparatus is constructed by a tank body, a wafer carrier, an elevator means, a tank cover, a solvent vapor conduit and an exhaust means. The exhaust means is provided for fluid communication with a compartment in the tank cover such that any residual solvent vapor or any organic residue in the compartment left from the wafer drying cycle can be evacuated to a factory exhaust system. The present invention novel method for reducing solvent or organic residue in the dryer can be carried out, after the removal of the dried wafers from the dryer, by evacuating the compartment in the tank cover for a time period of between about 30 sec. and about 300 sec. until all residual solvent vapor or organic residue is evacuated.

    摘要翻译: 已经公开了用于干燥半导体晶片的溶剂型干燥器中用于还原溶剂残留物的装置和方法。 该装置由罐体,晶片载体,电梯装置,罐盖,溶剂蒸气导管和排气装置构成。 提供排气装置用于与罐盖中的隔室流体连通,使得离开晶片干燥循环的隔室中的任何残留溶剂蒸气或任何有机残余物可被排空到工厂排气系统。 本发明的用于还原干燥机中的溶剂或有机残留物的新方法可以在从干燥器中除去干燥的晶片之后,通过将储罐盖中的隔室抽空约30秒的时间来进行。 约300秒 直到所有残留的溶剂蒸气或有机残余物被抽空。

    Method for cleaning a silicon-based substrate without NH4OH vapor damage
    5.
    发明授权
    Method for cleaning a silicon-based substrate without NH4OH vapor damage 有权
    无NH4OH蒸汽损坏的硅基衬底的清洗方法

    公开(公告)号:US06589356B1

    公开(公告)日:2003-07-08

    申请号:US09676746

    申请日:2000-09-29

    IPC分类号: C23G102

    CPC分类号: H01L21/02046 H01L21/02052

    摘要: A method for cleaning a silicon-based substrate in an ammonia-containing solution without incurring any damages to the silicon surface by NH4OH vapor is described. The method can be conducted by first providing a silicon-based substrate that has a silicon surface, then forming a silicon oxide layer of very small thickness, i.e. less than 10 Å, on the silicon surface. The silicon-based substrate can then be cleaned in an ammonia-containing solution without incurring any surface damage to the silicon, i.e. such as the formation of silicon holes. The present invention novel method can be carried out by either adding an additional oxidation tank before the SC-1 cleaning tank, or adding an oxidant to a quick dump rinse tank prior to the SC-1 cleaning process.

    摘要翻译: 描述了一种在含氨溶液中清洗硅基底物而不会由NH 4 OH蒸气对硅表面造成任何损害的方法。 该方法可以通过首先提供具有硅表面的硅基衬底,然后在硅表面上形成非常小的厚度(即,小于)的氧化硅层来进行。 然后可以在含氨溶液中清洗硅基基材,而不会对硅造成任何表面损伤,例如形成硅孔。 本发明的新方法可以通过在SC-1清洗槽之前添加另外的氧化槽,或在SC-1清洗过程之前向快速倾倒冲洗槽中加入氧化剂来进行。