DMC Marked Lift-out grids for workflow systems
Individually DMC (Data Matrix Code) marked lift-out grids are advanced specimen carriers designed for fully automated traceability in semiconductor and material science workflows. Unlike standard grids that use manual alphanumeric indexing (e.g., A-E), these grids feature a unique, machine-readable 2D micro-barcode on each individual unit.
Core Functionality
- Traceability at the Grid Level: Each grid carries a unique identity, allowing automated systems to track a specific specimen's "life story"—from Focused Ion Beam (FIB) milling to TEM imaging and long-term storage—without human data-entry errors.
- Machine-Readable: The micro DMC is etched directly onto the grid surface (often on the rim or a dedicated tab) and can be read by high-resolution scanners or the microscope's own imaging software.
- SEMI E177 Compliance: These marked grids are often central to SEMI E177 standardized workflows, which aim to unify the form factor for automated robotic handling in high-volume failure analysis.
Key Applications in Automated Systems
- Semiconductor Failure Analysis: In high-throughput labs, robots move carriers between tools. The DMC ensures the system always knows which die or wafer the current lamella originated from.
- Error Correction: Data Matrix codes are highly robust; they remain readable even if up to 30% of the code is damaged or obscured during the milling process.
- Data Integration: The unique ID automatically links microscope metadata (tilt, magnification, EDX data) to the correct sample record in a Laboratory Information Management System (LIMS).
