Alarm Management Unit for Substrate Processing Apparatus
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Solution Overview
Problem
Substrate processing apparatuses face challenges in efficiently managing multiple alarms triggered by interlock factors, leading to operator burden and potential oversight of critical recovery operations, as existing systems lack effective methods for grouping and batch recovery of alarms.
Innovation Solution
The substrate processing apparatus employs a detection unit, interlock means, and an alarm management unit to establish a parent-child relationship between alarms, allowing for grouped display and batch recovery of alarms, along with an option for individual recovery of child alarms, thereby reducing operator workload and improving recovery efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all alarms are displayed in time-series order and each alarm recovery is executed individually, then comprehensive alarm management is achieved, but operator burden increases and recovery efficiency decreases
Solution Approach 1:
The patent merges multiple child alarms into a single parent alarm display when they share the same cause. Instead of showing each alarm separately in time-series order, the system groups related alarms under a common parent alarm identifier, allowing operators to manage multiple alarms through a single interface while maintaining complete tracking of all alarm recoveries.
Solution Approach 2:
The patent segments the alarm management process into parent alarm identification and child alarm grouping. The parent alarm represents the root cause and is displayed prominently, while child alarms are organized under it. This segmentation allows operators to focus on the primary issue while systematically addressing related alarms without being overwhelmed by individual alarm details.
2Reliability
If multiple alarms are triggered by a single interlock factor, then comprehensive monitoring is achieved, but recovery operation complexity increases
Solution Approach 1:
The patent combines multiple child alarms that share the same parent cause into a unified alarm structure. The parent alarm serves as a single point of control for managing all related child alarms, reducing recovery operation complexity while maintaining comprehensive monitoring of all alarm conditions through the hierarchical relationship.
3Reliability
If each alarm is recovered individually through separate operations, then precise control over each alarm is achieved, but time consumption increases
Solution Approach 1:
The patent enables batch recovery operations by merging multiple child alarms under a single parent alarm. Operators can execute recovery operations for all child alarms simultaneously through the parent alarm interface, maintaining precise control over each alarm's recovery status while dramatically reducing the time required compared to individual recovery operations.
Solution Approach 2:
The patent performs preliminary grouping of alarms by establishing parent-child relationships before recovery operations are needed. This pre-organization of alarms into hierarchical structures allows for efficient batch processing during recovery operations, eliminating the need to individually identify and manage each alarm separately when recovery is required.
Data Source
AI summary
A substrate processing apparatus is provided with: a detection unit that detects a factor for which interlock is applied to one or more of a plurality of modules and outputs a detection signal; interlocking management unit that, based on the detection signal output from the detecting units, applies interlock to the module to be interlocked if the factor has been occurred; and an alarm management unit that determines parent-child relationships between a parent alarm indicating that the factor for which interlock is applied has been detected, and child alarms each indicating that interlock has been applied to each module, and causes a display unit to display in a grouped manner the parent alarm and the child alarm or alarms having the parent-child relationship.