Patent ID: 11967514
Assignee: SEMES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H  G | IPC G  H

Claim 9:
10. A system for controlling a process, comprising:
a semiconductor process facility includes a process chamber configured to perform processing on a substrate and a transfer robot configured to transport the substrate; and
an apparatus for controlling a process configured to control operations of the process chamber and the transfer robot,
the apparatus comprising:
a processor, and
a memory for storing a plurality of instructions executed by the processor,
wherein the plurality of instructions comprise:
an instruction for determining deviation tendency of a seating point of a substrate with respect to a seating center point of a substrate support based on seating point data created by accumulating the seating points of the substrate seated on the substrate support;
an instruction for determining an alarm level according to the determined deviation tendency; and
an instruction for performing post-processing according to the determined alarm level, the instruction for performing post-processing comprising an instruction for controlling a transfer robot that moves the substrate, the instruction for controlling the transfer robot comprising an instruction for determining a direction and a distance of a seating point deviation from the seating center point based on a seating point group formed by a plurality of prior seating points,
wherein the seating point data comprises a change of the seating point over time,
wherein the seating point data comprises listing seating distances between the seating center point and the seating point of the substrate in chronological order,
wherein the instruction for determining the alarm level determines the alarm level by comparing a magnitude of a change in the seating point per unit time with a preset threshold change amount,
wherein the alarm level comprises:
a first alarm level in which the magnitude of the change in the seating point per unit time exceeds a first threshold change amount; and
a second alarm level in which the magnitude of the change in the seating point per unit time exceeds a second threshold change amount greater than the first threshold change amount.