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

Claim 13:
14. A system, comprising:
a carrier configured to hold a plurality of objects;
a wet bench tank comprising a processing agent, wherein the processing agent covers a surface of the plurality of objects;
a first roller attached to a first sidewall of the wet bench tank and configured to rotate a first sub-roller, wherein the first sub-roller is configured to rotate a first object of the plurality of objects at a first speed;
a second roller attached to a second sidewall of the wet bench tank and configured to rotate a second sub-roller, wherein the second sub-roller is configured to rotate a second object of the plurality of objects at a second speed; and
a control device programmed to simultaneously rotate the first object of the plurality of objects at the first speed and the second object of the plurality of objects at the second speed, wherein the first speed is different from the second speed.