Abstract: A film formation apparatus for plasma CVD and etching methods making use of inductive coupling plasma generators. The apparatus comprises a plurality of plasma generators for inductive coupling methods, one or more film formation gas discharge pipes, and a substrate setting table facing the plurality of plasma generators via a reaction zone. The film formation gas discharge pipes are included in each of two movable members capable of performing reciprocating motions along a substrate surface on the substrate setting table, while intersecting each other. Thereby, a plasma with a relatively high density can be uniformly created over a large area, the film formation gas excited by free radicals in the plasma can uniformly spread over the film formation target, and a film can be formed with a high deposition rate. Consequently, a large-sized substrate with a good quality of thin film can be provided.