Patent ID: 11929271
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. The method of claim 12, wherein:
the plurality of images includes a first image of an exterior side of a door of the wafer carrier before the door is opened and one or more images captured inside the wafer carrier after the door is opened; and
the method further comprises:
opening the door of the wafer carrier along a first direction;
moving the door to a rest area along a second direction that is different from the first direction; and
determining at least one of the following: whether there is a defect on a latch key groove of the door based on the first image, whether there is a defect on a filter based on the one or more images, whether there is a defect or break of a tenon based on the one or more images, and whether a mini-contact in the wafer carrier is worn out based on the one or more images.