Patent ID: 6344115
Filing Date: 2002-02-05
Classification: C23C,H01J

Abstract:
A pattern forming method using a charged particle beam process comprising:irradiating a workpiece with a focused charged particle beam in an environment of a reactive gas in a processing chamber for the local reactive processing of portions of the workpiece irradiated with the focused charged particle beam to form a pattern, wherein the reactive gas which is at least one of adsorbed by and adhered to a surface of the workpiece is removed from the surface of the workpiece by heating the workpiece with one of a mercury vapor lamp and an infrared lamp in an environment of an inert gas in a load-lock chamber connected through a gate valve to the processing chamber, after the pattern has been formed in the processing chamber, by a reactive gas removing process before taking out the workpiece from the load-lock chamber into the atmosphere.