Biosensor Electrode Layout With Enlarged Isolation Lines

The patent applies preliminary action by pre-defining enlarged regions at potential short circuit locations before any particles detach. These enlarged regions are created during the laser etching process itself, expanding the separation lines in advance at positions where conductive particles might fall during cutting or handling. This preventive measure ensures that even if particles detach later, they cannot bridge the gap between adjacent conductive regions, thus maintaining reliability while keeping the manufacturing process simple.

The patent applies local quality by making the separation lines non-uniform. Specifically, the separation lines are enlarged only at specific locations where short circuits are most likely to occur (such as near cutting edges and contact areas), while maintaining standard width in other regions. This localized approach enhances reliability at critical points without unnecessarily complicating the overall manufacturing process or increasing material usage across the entire sensor.

The enlarged regions are created during the laser etching process itself, integrating the short circuit prevention feature into the existing manufacturing workflow without requiring additional processing steps. The laser parameters are adjusted locally to expand the separation lines at predetermined positions, but the overall process sequence remains unchanged. This approach reduces reliability risks while minimizing increases in device complexity.

The patent applies local quality by enlarging separation lines only at specific critical locations rather than uniformly across the entire sensor. The enlarged regions are positioned at high-risk areas such as near cutting edges and contact points, while other separation lines maintain their original width. This selective approach prevents short circuits where they are most likely to occur while preserving maximum electrode area for sensing functionality.