Patent ID: 11939665
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC C  G  H | IPC C  G  H

Claim 20:
21. A film forming system comprising:
a processing module configured to form a film on a substrate;
a transfer module configured to transfer a substrate to the processing module; and
a film thickness measuring apparatus configured to measure a film thickness of the film formed by the processing module in-situ,
wherein the film thickness measuring apparatus includes:
a stage configured to place a substrate having a film formed thereon and measure a thickness of the film in-situ in a film forming apparatus, the film forming apparatus including a processing module that forms the film on the substrate and a transfer module that transfers the substrate to the processing module;
a film thickness meter including a light emitter that emits light toward the substrate disposed on the stage and a light receiving sensor that receives the light reflected by the substrate for measuring the thickness of the film in-situ;
a moving mechanism including a multi-joint arm configured to move an irradiation point of the light on the substrate;
a distance meter configured to measure a distance between the light receiving sensor and the irradiation point on the substrate; and
a distance adjustor configured to adjust the distance between the light receiving sensor and the irradiation point on the substrate.