发明名称
摘要 PURPOSE:To eliminate the pinholes generating by adhesion of splash of a processing solution by a method wherein a flow-rate controlled processing solution runs from the nozzle on the first stage in the state wherein it is formed in a sticklike form, and said processing solution covers the surface of the photoresist on a wafer instantaneously. CONSTITUTION:A flow-rate controlled processing solution 9 coming from the first stage nozzle 20 is poured on the wafer 3 by a flow-rate controlling valve 22. At that time, the nozzle 20 on the first stage is formed in the shape in such a manner that the processing solution 9 will not be scattered, it will run out in a collected form, and that it will instantaneously cover the surface of the wafer 3. Then, following the first stage of nozzle 20, the shower nozzle 8 on the second stage is provided and besides, the shower nozzle 8 and 8 on the final stage are provided leaving an interval. Said shower nozzles 8 make the processing solution 9 into a laterally spreading fanlike formed shower 9a, thereby enabling to be sprinkled on the moving wafer 3.
申请公布号 JPS6233736(B2) 申请公布日期 1987.07.22
申请号 JP19830003143 申请日期 1983.01.10
申请人 MITSUBISHI ELECTRIC CORP 发明人 TAKAHATA OSAMU
分类号 H01L21/30;C23F1/08;G03F7/30;H01L21/027;H01L21/306 主分类号 H01L21/30
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