Patent ID: 11942343
Assignee: ADVANCED ION BEAM TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C  G | IPC C  G  H

Claim 17:
18. An ion implantation system, comprising:
an ion implanter;
a processing station; and
a controller,
wherein the controller comprises memory and one or more processors, and
wherein the memory stores one or more programs, the one or more programs comprising instructions, which when executed by the one or more processors, cause the controller to:
control an ion implanter of the ion implantation system to implant ions into a wafer while maintaining the wafer at a first predetermined temperature within a processing chamber of the ion implanter;
control the processing station of the ion implantation system to heat the wafer at the processing station with one or more infrared heating lamps;
control the processing station of the ion implantation system to cease heating the wafer by turning off the one or more infrared heating lamps;
after turning off the one or more infrared heating lamps:
control a laser source to direct a laser beam to a predefined location on the wafer;
obtain, from a monochromator, data representing detected fluorescent light emitted by the wafer in response to absorbing laser energy of the laser beam;

determine an intensity profile of the detected fluorescent light based on the data representing the detected fluorescent light;
determine a current temperature of the wafer based on one or more characteristics determined from the intensity profile; and
in accordance with the determined current temperature of the wafer satisfying a predetermined condition:
control the processing station to forgo continuing heating the wafer at the processing station; and
control the robotic arm to remove the wafer from the processing station.