Patent ID: 11961745
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus, comprising:
a carrier configured to hold a plurality of objects, wherein the carrier comprises a handle and one or more lifting portions;
a tank configured to receive the carrier, wherein the tank holds a processing agent;
a first roller configured to rotate a first sub-roller in contact with a first object of the plurality of objects and configured to spin the first object at a first speed;
a second roller configured to rotate a second sub-roller in contact with a second object of the plurality of objects and configured to simultaneously spin the second object at a second speed different from the first speed, wherein:
the first roller is attached to a first sidewall of the tank and the second roller is attached to a second sidewall of the tank, and

the first sub-roller and the second sub-roller are detached from each other; and
a control device programmed to simultaneously rotate the first object at the first speed and the second object at the second speed.