Etching method and device
    97.
    发明专利
    Etching method and device 有权
    蚀刻方法和装置

    公开(公告)号:JP2011216550A

    公开(公告)日:2011-10-27

    申请号:JP2010081063

    申请日:2010-03-31

    Abstract: PROBLEM TO BE SOLVED: To shorten a process cycle time by efficiently etching a channel part etc., of a semiconductor device.SOLUTION: An object 9 to be processed is continuously conveyed along a conveyance path 11 wherein the pressure is close to atmospheric pressure. An etchant is supplied from a supply nozzle 21 to the object 9 to be processed at an upstream-side position on the conveyance path 11 and a metal film 97 is wet etched. Successively, an etching gas containing a fluorine-based reaction component and an oxidative reaction component is brought into contact with a surface of the object 9 to be processed in a processing space 19 on a downstream side on the conveyance path 11 and a semiconductor film 94 is dry etched. The fluorine-based reaction component is generated with atmospheric-pressure plasma. In accordance with a conveying speed of the object 9 to be processed, the etching rate is set so that an etching depth in a period wherein the object 9 to be processed passes through the processing space 19 is substantially equal to a thickness of a film part 96 doped with an impurity.

    Abstract translation: 要解决的问题:通过有效地蚀刻半导体器件的沟道部分等来缩短处理周期时间。解决方案:被处理物体9沿着输送路径11连续地输送,其中压力接近大气压。 从供给喷嘴21向输送路径11的上游侧位置处理的被处理体9供给蚀刻剂,并对金属膜97进行湿蚀刻。 接着,将含有氟系反应成分和氧化反应成分的蚀刻气体与输送路径11的下游侧的处理空间19中的被处理物9的表面和半导体膜94接触 被干蚀刻。 氟系反应成分是用大气压等离子体生成的。 根据待处理物体9的输送速度,蚀刻速率被设定为使得待处理物体9经过处理空间19的时间段内的蚀刻深度基本上等于膜部分的厚度 96掺杂杂质。

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