DEVICE FOR APPLYING PHOTORESIST TO SEMICONDUCTOR WAFERS Russian patent published in 2021 - IPC H01L21/31 

Abstract RU 2761134 C2

FIELD: resist applying techniques.

SUBSTANCE: invention relates to a technique for applying a resist to semiconductor wafers and can be used for applying a photoresist in semiconductor production in the manufacture of ICs, LSI and VLSI in an automatic cluster photolithography line. The device includes a plate holder with a rotation drive installed in a bath equipped with a pipeline for supplying a cleaning liquid, a photoresist supply nozzle and a solvent supply nozzle, which are mounted on a bracket with the ability to move the latter from the working area of ​​the bath to the non-working area to the support. The stand is made in the form of a cylindrical container with two holes in the cover for installing nozzles and an annular drain threshold in the center of the bottom.

EFFECT: reducing the negative effect of drying photoresist.

1 cl, 4 dwg

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RU 2 761 134 C2

Authors

Komarov Valerij Nikolaevich

Komarov Nikolaj Valerevich

Dates

2021-12-06Published

2020-05-26Filed