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    • 98. 发明授权
    • Method and system of coating polymer solution on a substrate in a solvent saturated chamber
    • 在溶剂饱和室中在基材上涂覆聚合物溶液的方法和系统
    • US07942967B2
    • 2011-05-17
    • US11973100
    • 2007-10-05
    • Andrew Nguyen
    • Andrew Nguyen
    • B05C11/00B05C11/02B05B1/28
    • H01L21/6715B05D1/005B05D3/0486G03F7/162
    • A method and apparatus of coating a polymer solution on a substrate such as a semiconductor wafer. The apparatus includes a coating chamber having a rotatable chuck to support a substrate to be coated with a polymer solution. A dispenser to dispense the polymer solution over the substrate extends into the coating chamber. A vapor distributor having a solvent vapor generator communicable with the coating chamber is included to cause a solvent to be transformed into a solvent vapor. A carrier gas is mixed with the solvent vapor to form a carrier-solvent vapor mixture. The carrier-solvent vapor mixture is flown into the coating chamber to saturate the coating chamber. A solvent remover communicable with the coating chamber is included to remove excess solvent that does not get transformed into the solvent vapor to prevent the excess solvent from dropping on the substrate.
    • 一种在诸如半导体晶片的衬底上涂覆聚合物溶液的方法和设备。 该设备包括具有可旋转卡盘的涂覆室,以支撑待涂覆聚合物溶液的基材。 将聚合物溶液分配在基材上的分配器延伸到涂布室中。 包括具有与涂覆室可连通的溶剂蒸汽发生器的蒸气分配器,以使溶剂转化为溶剂蒸汽。 将载气与溶剂蒸气混合以形成载体 - 溶剂蒸气混合物。 载体 - 溶剂蒸气混合物流入涂覆室以使涂覆室饱和。 包括可与涂布室通信的溶剂去除剂以除去不被转化为溶剂蒸气的多余溶剂,以防止过量的溶剂滴落在基材上。