Patent ID: 7291227
Filing Date: 2007-11-06
Classification: H01L

Abstract:
1. A processing equipment comprising: a chamber; an airflow generator which generates a downward airflow in the chamber; a stage which has a top surface, wherein the stage is provided in the chamber; and a nozzle which has a supply port, wherein the supply port is arranged above the stage and is provided in the chamber, and wherein the nozzle has a lower sidewall that extends integrally from the nozzle, that is tapered, and that surrounds the supply port, the nozzle further including a protector formed integrally as part of the nozzle, the protector having a tapered lower end that surrounds the lower sidewall of the nozzle, that protects the supply port from the downward airflow, wherein the tapered lower end of the protector extends beyond the lower sidewall in a direction substantially along the downward airflow and wherein an inner surface of the protector is arranged to be parallel with the tapered lower sidewall of the nozzle.