Lithography Spatial Defect Analysis
Problem: Systematic “edge-of-wafer” defects in 7nm nodes caused by plasma non-uniformity, often missed by traditional SPC (Statistical Process Control) until final testing.
Solution: We deployed a Computer Vision pipeline using Custom CNNs (Convolutional Neural Networks) to perform real-time spatial pattern recognition on metrology maps, identifying precursor “fingerprints” of etch drift.
SECS/GEMComputer VisionKLA-Tencor Integration
Continuous Catalyst Activity Optimisation
Problem: Non-linear catalyst degradation in ammonia synthesis leads to sub-optimal throughput as operators maintain conservative temperature setpoints to avoid thermal runaway.
Solution: Implementation of a Deep Reinforcement Learning (DRL) agent acting as a “Supervisory Layer” over the existing DCS. The agent dynamically adjusts H2:N2 ratios and reactor temperatures based on real-time gas chromatography data.
DCS IntegrationReinforcement LearningSoft Sensors
Bioreactor Titer Yield Maximization
Problem: High batch-to-batch variability in monoclonal antibody production due to metabolic drift in CHO (Chinese Hamster Ovary) cell lines.
Solution: A Hybrid Digital Twin combining mechanistic first-principles models with LSTM (Long Short-Term Memory) networks. We used In-line Raman Spectroscopy as a primary data source for real-time glucose and lactate control.
LIMS IntegrationDigital TwinRaman Analytics
Casting Temperature Uniformity AI
Problem: Secondary cooling zone temperature fluctuations causing “longitudinal cracks” in high-strength low-alloy (HSLA) steel slabs.
Solution: Gradient Boosting Regressors (XGBoost) trained on multi-point pyrometer data and water flow rates. The model predicts internal slab temperature profiles and adjusts nozzle pressures 30 seconds before defects occur.
SCADAPredictive ControlEdge Computing
Moisture Consistency & Weight Leakage
Problem: Over-drying of snack foods to ensure “safety margins” leading to significant weight leakage (product giveaway) and excessive energy consumption.
Solution: Virtual Soft Sensors using Feed-Forward Neural Networks (FFNN). By fusing PLC data (conveyor speed, oven temperature) with inlet humidity, we predicted final moisture content with 98.5% accuracy.
EtherNet/IPNeural NetworksPLC Integration
Paint Shop Quality & Energy Optimisation
Problem: “Orange peel” texture and solvent pop defects requiring manual sand-and-buff rework, largely driven by ambient humidity and air pressure fluctuations.
Solution: Bayesian Optimization for real-time spray parameter adjustment. The system consumes weather station data, booth sensor data, and viscosity measurements to adjust robot bell speeds and voltages.
Bayesian ModelsFanuc IntegrationIoT Gateway
Autoclave Cure Cycle Optimisation
Problem: Excessively long cure cycles for carbon-fiber wing spars to mitigate “hot spot” risks, causing a massive bottleneck in aerospace assembly.
Solution: Physics-Informed Neural Networks (PINNs) that predict resin flow and degree-of-cure in real-time. This allowed for “Active Cure Control,” reducing cycle time while maintaining zero porosity.
PINNsMES IntegrationThermal Modeling
Edge-AI Tool Wear & Surface Finish
Problem: Unpredictable tool breakage in titanium milling for medical implants, leading to catastrophic part scrap and spindle damage.
Solution: High-frequency (20kHz) vibration and acoustic emission analysis using Edge AI. TinyML models running on the machine controller detect microscopic “chatter” patterns indicative of imminent tool failure.
MTConnectTinyMLAcoustic Analysis