Used NANOMETRICS M6100

The NANOMETRICS M6100 is a fully automated optical thin-film thickness and quality measurement system, serving as a critical metrology and inspection (M&I) tool in front-end semiconductor wafer manufacturing.

Core Focus: High-Precision Optical Thin-Film Thickness Measurement

This system is primarily designed for the precise measurement of the thickness and optical constants (n/k values) of various dielectric thin films—such as SiO₂, SiN, and polysilicon—on wafer surfaces. It is extensively used to monitor film thickness before and after processes including oxidation, chemical vapor deposition (CVD), etching, and chemical mechanical polishing (CMP), making it an essential instrument for maintaining stable process control (SPC) in semiconductor fabrication lines.

Key Technical Features

Broad-Spectrum and Multi-Layer Film Analysis: Utilizing broadband spectroscopic reflectometry or ellipsometry, the system can accurately measure single-layer films and resolve complex multi-layer film stacks, meeting the stringent thickness control requirements of advanced manufacturing processes.

High-Throughput, Fully Automated Platform: Equipped with an automated wafer handling system (compatible with FOUP standards), the platform supports fully automated, multi-point thickness mapping. Its exceptional measurement speed and high throughput make it ideally suited for large-scale production environments.

Seamless Integration and Closed-Loop Control: Supporting the SECS/GEM communication protocol, the system enables real-time data transmission to Manufacturing Execution Systems (MES) or Statistical Process Control (SPC) systems. This facilitates "run-to-run" closed-loop process feedback for deposition and etching equipment.

Summary: With its superior optical measurement precision, capability to analyze multi-layer films, and high-throughput automated design, the NANOMETRICS M6100 has become a core metrology tool in front-end semiconductor manufacturing, playing a vital role in monitoring thin-film process quality and enhancing production yields.