Patent ID: 8832960
Filing Date: 2014-09-16
Classification: F04F,H01L

Abstract:
1. An apparatus for purge to prevent AMC & natural oxide, the apparatus comprising: a Front Opening Unified Pod (FOUP) configured to contain one or more wafers and to have a receipt supply hole for supplying gas and a receipt discharge hole for discharging the gas formed at a lower part of the FOUP; stage units each configured to have the FOUP separated from the stage unit or seated in the stage unit, to support the seated FOUP, and to have a gas supply hole for supplying the gas formed at a position corresponding to the receipt supply hole and a gas discharge hole for discharging the gas formed at a position corresponding to the receipt discharge hole; a first gas supply port unit disposed in response to the gas supply hole and configured to supply the gas to the FOUP while the FOUP is seated in the stage unit; and a first gas discharge port unit disposed in response to the gas discharge hole and configured to discharge the gas from the FOUP while the FOUP is seated in the stage unit, wherein the first gas supply port unit comprises: a first supply fixing unit inserted into the gas supply hole; a first supply protrusion unit protruded from a top of the first supply fixing unit and configured to penetrate the first supply fixing unit; a first supply body unit disposed at a bottom of the first supply fixing unit and configured to have a greater diameter than the first supply fixing unit so that the first supply body unit is not inserted into the gas supply hole and to support the first supply fixing unit; and a first gas supply unit connected with the first supply protrusion unit and configured to penetrate the first supply body unit in a direction in which the first supply fixing unit is inserted into the gas supply hole and to supply the gas to the FOUP.