Patent ID: 11959186
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 16:
17. An electroplating apparatus, comprising:
a reaction module configured to contain an electroplating solution, the electroplating solution being used for performing an electroplating process on wafers put in the electroplating solution;
an ultrasonic wave module configured to apply ultrasonic waves to the electroplating solution;
an adding module configured to add particles into the electroplating solution and put the wafers into the electroplating solution or take the wafers out of the electroplating solution;
a processing module configured to remove the particles in the electroplating solution; and
a control module configured to control operation of the ultrasonic wave module, the adding module and the processing module, wherein the control module comprises:
a detection unit configured to detect an action of putting wafers into the electroplating solution or an action of taking wafers out of the electroplating solution;
a first regulation and control unit configured to control the ultrasonic wave module to switch on the ultrasonic waves when the action of taking wafers out of the electroplating solution is detected;
a second regulation and control unit configured to control the adding module to add the particles into the electroplating solution when the action of taking wafers out of the electroplating solution is detected; and
a third regulation and control unit configured to control the ultrasonic wave module to switch off the ultrasonic waves and the processing module to remove the particles in the electroplating solution when the action of putting wafers into the electroplating solution is detected.