Patent ID: 6564743
Filing Date: 2003-05-20
Classification: H01L

Abstract:
An oxide film forming apparatus of a semiconductor device, comprising:a high voltage source for generating a DC high voltage having a negative polarity; one pair of electrodes arranged apart from each other via a space portion said DC high voltage being applied to one electrode of said one-paired electrodes; a flow path channel formed from an upstream located in a direction perpendicular to said electrodes via said space portion to a downstream, through which oxygen gas may flow; an oxygen source for supplying the oxygen gas from the upstream side of said flow path channel wherein the oxygen source supplies the oxygen perpendicularly across the space portion in order to increase oxygen gs ionization; a substrate base arranged on the downstream side of said flow path channelk by which a semiconductor substrate can be mounted at a position where this semiconductor substrate is exposed by the oxygen gas which has passed between said one pair of eletrodes.