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

Claim 7:
8. 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 hold a processing agent and to receive the carrier, wherein a top portion of the handle is configured to be above a top level of the processing agent;
a first roller attached to a first sidewall of the tank and configured to spin the plurality of objects based on a control signal, wherein the first roller is configured to rotate a first sub-roller in contact with a first object of the plurality of objects
a second roller attached to a second sidewall of the tank and configured to spin a second object of the plurality of objects based on the control signal, wherein the second roller is configured to rotate a second sub-roller in contact with the second object of the plurality of objects; and
a computing device programmed to generate the control signal for simultaneously rotating the first roller and the second roller, wherein the control signal comprises a first spin speed and a first spin direction for the first object of the plurality of objects and a second spin speed and a second spin direction for the second object of the plurality of objects, and wherein the first spin speed is different from the second spin speed.