System Architecture
System Architecture and Data Flow
This architecture stores wafer test data, final test data, and metadata collected from testers and upstream systems, then enables high-speed analysis and visualization on the client side.
Server: Collection, Storage, and Integration
KAI_Analysis_Server_System collects data from testers, probers, handlers, MES, and other upstream systems, then stores it in the database after validation, formatting, and missing-data handling.
Client: Analysis and Visualization
KAI_Analysis_Tool_Client retrieves large volumes of data from the database at high speed and performs analysis and visualization. It also supports standalone analysis by directly reading test data files such as STDF.
Data Flow
Collection → preprocessing → database storage with sharding → analysis including statistics, correlation, spatial, and time-series analysis → visualization using maps, distributions, and control charts → notification → upstream system integration → archive/delete.
Alarms and Upstream Integration
Alert notifications upon anomaly detection and transmission of analysis results to upstream systems help accelerate feedback to processes and equipment.
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