MEMS Gas Sensor Suspension Bridge for Low-Power, Fast Thermal Response

The gas sensor is divided into multiple independent gas detection components, each with its own heating electrode and detection electrode. This segmentation allows parallel processing of multiple gas detection tasks, improving thermal response speed while the shared base substrate and cavity structure reduce overall power consumption through efficient heat distribution and reduced redundant heating elements.

The patent transitions from conventional planar electrode designs to a three-dimensional stacked structure with heating electrode, insulation layer, and detection electrode arranged in vertical layers. This dimensional change increases the heating surface area and improves thermal efficiency, enabling faster thermal response while reducing power consumption through more effective heat utilization.

Multiple gas detection components are integrated into a single base substrate with shared cavity structures and common electrode connections. The heating electrodes and detection electrodes are merged into unified patterns that can be fabricated using standard semiconductor processing techniques, simplifying manufacturing while maintaining high gas detection performance through the integrated architecture.

The patent uses standardized thickness parameters for the insulation layer (e.g., 100-500 nm) and heating electrode patterns to optimize gas detection performance while keeping manufacturing simple. By controlling key parameters like layer thickness, electrode width, and spacing within specific ranges, high measurement precision is achieved without requiring complex fabrication processes.