Patent ID: 11890718
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A tray assembly for a polishing head in a chemical mechanical polishing (CMP) system, comprising:
a first tray having a first top surface and a first bottom surface opposite the first top surface, the first tray having a first joint part on the first bottom surface;
a second tray having a second top surface and a second bottom surface opposite the second top surface, the second top surface of the second tray facing the first bottom surface of the first tray, the second tray having a second joint part on the second top surface, the first joint part and the second joint part, in operation, cooperating with each other to reversibly attach the second tray to the first tray, the second tray including a collection region; and
a plurality of first fasteners positioned at selected locations of the first tray and which, in operation, secures the first tray to the second tray, at least one of the plurality of first fasteners positioned adjacent to the first joint part of the first tray,
wherein the first joint part is a male dovetail and the second joint part is a female dovetail, and
wherein, in operation, the male dovetail of the first tray slidably inserts into the female dovetail of the second tray to secure the first tray to the second tray.