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

Claim 11:
12. The temperature control system for an etching workbench according to claim 11, wherein the temperature control pipe section comprises a first temperature control pipe section and a second temperature control pipe section, the first temperature control pipe section is located in a center region of the etching workbench, the second temperature control pipe section is located in an edge region of the etching workbench, and the first temperature control pipe section is not connected with the second temperature control pipe section in the etching workbench;
the second sensor comprises a center region sensor and an edge region sensor, the center region sensor is configured to detect a real-time temperature of the center region of the etching workbench in real time and the edge region sensor is configured to detect a real-time temperature of the edge region of the etching workbench in real time; and
correspondingly, the controller determines the temperature control instruction according to the limit temperature, the real-time temperature of the center region, the real-time temperature of the edge region and the real-time temperature of the temperature control fluid.