Ulvac, Inc.

Youhei Oonishi

Isao Kimura

Hiroki Kobayashi

Takehito Jinbo

Youhei Endou

A dielectric film forming apparatus and a method for forming a dielectric film so as to form a dielectric film with a (100)/(001) orientation. A dielectric film forming apparatus includes a deposition preventive plate heating portion that heats a deposition preventive plate disposed in a position where particles discharged from a target adhere. Sputtering gas is introduced from a sputtering gas introduction unit into a vacuum chamber. The deposition preventive plate is heated to a temperature higher than a film forming temperature so as to emit vapor from a thin film adhered to the deposition preventive plate. After a seed layer is formed on a substrate, the substrate is heated to the film forming temperature, and AC voltage is applied to the target from a power supply and then, the target is sputtered so as to form a dielectric film on the substrate.

Dielectric film forming apparatus and method for forming dielectric film

A method for forming a dielectric thin film that forms a PZT thin film having a (100)/(001) orientation. After a seed layer is formed by adhering PbO gas to a surface of a substrate, a voltage is applied to a target of lead zirconate titanate (PZT) and perform sputtering, while the substrate is heated inside of an evacuated vacuum chamber. Then, a PZT thin film is formed on the surface of the substrate. Because Pb and O are supplied from the seed layer, a PZT film having a (001)/(100) orientation can be formed without lack of Pb.

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Susono, Japan

Youhei Oonishi