Patent ID: 9460943
Filing Date: 2016-10-04
CPC Classification: H01L

Claim Text:
1. A gas-liquid two-phase atomizing cleaning device for cleaning and drying a wafer, comprising: a gas-liquid two-phase atomizing spray head which is a double jacket structure and comprises a nozzle, a rotating arm, a gas guide tube and a liquid guide tube; wherein the nozzle is connected with the rotating arm, the gas guide tube and the liquid guide tube are fixed to the rotating arm, the gas guide tube and the liquid guide tube are both provided with pneumatic valves such that the gas-liquid two-phase atomizing spray head injects liquid phase fluid or gas-liquid two-phase fluid or gas phase fluid by controlling the on-off of the pneumatic valves; wherein, during a cleaning process, the gas-liquid two-phase atomizing spray head injects the gas-liquid two-phase fluid and the liquid phase fluid alternatively; during a drying process, the gas-liquid two-phase atomizing spray head injects the gas phase fluid.