Patent ID: 8048476

Claim:
A method of manufacturing a plasma display panel comprising: introducing a substrate, on which a display electrode and a dielectric layer are formed, into a film forming chamber; depositing metal oxide successively on a surface of the substrate while the substrate is transported; measuring, with a partial pressure detecting unit that is disposed adjacent to an exit of the film forming chamber downstream of a center of a deposition space, a partial pressure of at least one gas of H 2 O and OH in the film forming chamber adjacent to the exit of the film forming chamber downstream of the center of the deposition space of the film forming chamber in a transport direction of the substrate while the metal oxide is deposited; and controlling an amount of gas containing H 2 O that is introduced into the film forming chamber based on the partial pressure to make the partial pressure of OH to be not less than 2.0×10 −4 Pa nor more than 1.6×10 −3 Pa, roughly at the time of completing said depositing.