Patent ID: 11915952
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A temperature control method for an etching workbench, comprising:
acquiring, by a controller, a real-time temperature of the etching workbench and a real-time temperature of a temperature control fluid in a workbench temperature control fluid loop, the real-time temperature of the etching workbench being a current operating temperature of the etching workbench, the real-time temperature of the temperature control fluid being a current operating temperature of the temperature control fluid in the workbench temperature control fluid loop;
determining, by the controller, a temperature control instruction according to the real-time temperature of the etching workbench, the real-time temperature of the temperature control fluid and a limit temperature;
sending, by the controller, the temperature control instruction to a temperature adjustment loop; and
stabilizing, by the temperature adjustment loop in response to the temperature control instruction, a target operating temperature of the etching workbench within a preset range by adjusting the real-time temperature of the temperature control fluid in the workbench temperature control fluid loop by an evaporator.