发明名称 LIQUID DRIPPING DEVICE
摘要 PURPOSE:To prevent the formation of foam in the liquid layer that is applied onto a rotating body and prevent splashing of the liquid by providing a needle at the end of the opening along which the liquid drips. CONSTITUTION:A support 6 is mounted on the tip end of a pipe 5. At the tip end of the support 6 a grid plate 8 is provided, and at the center of the grid plate 8 a needle 7 is provided. when a resist liquid is dripped along the needle 7 onto a semiconductor wafer smoothly, the resist liquid never forms large resist drips at the end of the opening for pouring the resist liquid. The liquid drops down smoothly onto the semiconductor wafer. Accordingly the resist liquid layer formed by applying the liquid onto the rotating wafer has no foam, nor does the resist liquid splash on the wafer surface, producing a uniform film with high yield.
申请公布号 JPS5843514(A) 申请公布日期 1983.03.14
申请号 JP19810141293 申请日期 1981.09.08
申请人 TOKYO SHIBAURA DENKI KK 发明人 TAKAHASHI MINORU
分类号 H01L21/027;G03F7/16;(IPC1-7):01L21/30 主分类号 H01L21/027
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