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

Claim 2:
3. The apparatus of claim 2, wherein:
the plurality of images includes a first image of an exterior side of the 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 processor is configured to determine 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.