Chemical Mechanical Planarization (CMP) plays a vital role in the fabrication of integrated circuits. It combines chemical reactions and mechanical polishing techniques to achieve an even and smooth surface on silicon wafers.
With the rapid advances in IC manufacturing processes, the flatness and uniformity of the chip's topography during various manufacturing stages are critical for the yield and product performance. This impact is further magnified when the microchip's process layers are stacked up and process-sensitive patterns exist on the chip's layout. One of the significant challenges in securing high chip yield is to achieve accurate simulation, modeling, and optimization of the CMP process and its effect on the chip's topography. To overcome this challenge, Semitronix offers CMPEXP, a tool that can ensure the manufacturability of chips and yield.
Benefits
Various Types of CMP Models
▪ Supports physical models based on contact mechanics
▪ Supports emerging machine learning models of neural networks
▪ Supports model customization
Efficient Model Tuning
Introduces advanced parameter tuning algorithms to provide efficient model tuning experiences
Workflow
Main Features
Extraction of geometry features from a grid-based collection
Simulation and analysis of CMP models
Detection and localization of CMP hotspots
Support for physical and machine learning models
Definition of process recipes and automatic model calibration (Etching, ECD, and CMP)
Adoption of an efficient distributed parallel computing architecture, which significantly improves model calibration and simulation efficiency. Usage of various visualizations such as data tables, scatter plots, line charts, bar charts, heatmaps, and 3D plots to display model calibration, simulation, and hotspot detection results