Patent ID: 11901202
Assignee: JNK TECH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. A method of depositing a film on a substrate, the method comprising:
providing a film deposition apparatus comprising:
a load lock chamber configured to receive and clamp a substrate, the load lock chamber comprising one or more viewport windows disposed to pass through a wall of the load lock chamber,
a deposition chamber configured to deposit a film over the substrate to output a film-deposited substrate,
a transfer robot configured to move the substrate and the film-deposited substrate between the load lock chamber and the deposition chamber, and
one or more cameras coupled to an exterior portion of the one or more viewport windows of the load lock chamber and configured to capture at least one image of the substrate and/or the film-deposited substrate, disposed inside the load lock chamber, through the one or more viewport windows;

loading the substrate, using a loading-unloading robot, from an outside of the load lock chamber to an inside of the load lock chamber to place the substrate in the load lock chamber;
moving the substrate, by the transfer robot, from the load lock chamber to the deposition chamber;
depositing a film over the substrate in the deposition chamber to output the film-deposited substrate;
moving the film-deposited substrate, by the transfer robot, from the deposition chamber to the load lock chamber to place the film-deposited substrate in the load lock chamber;
after the film-deposited substrate is placed in the load lock chamber, capturing, by the one or more cameras, at least one image of one or more portions of the film-deposited substrate such that the film is included in the at least one image;
unloading, by the loading-unloading robot, the film-deposited substrate from the load lock chamber;
analyzing, by at least one controller, the at least one image to determine whether a film deposited over the film-deposited substrate has a defect; and
displaying the at least one image and analysis results on a display,
wherein analyzing the at least one image comprises:
obtaining pixel values of pixels in the at least one image; and
processing the pixel values to determine whether the film has a defect or an error,
determining at least one of components in the deposition chamber related to the defect of the film, and

wherein the analysis results being displayed on the display comprise information on the at least one component related to the defect.