Via-Filled Pad Connection Structure for Compact Reliable Electronics

The patent merges multiple electrical connection structures into a single integrated module. Multiple conductive layers (first conductive layer, second conductive layer, third conductive layer) are stacked vertically and interconnected through via holes within the same substrate area, eliminating the need for separate wire connections between discrete components. This vertical integration maintains multiple connection paths for reliability while confining all connections to a compact footprint.

The patent transitions from planar wire-based connections to vertical three-dimensional connections through stacked conductive layers and via holes. Instead of extending connections horizontally across the substrate surface, the design utilizes the vertical dimension by creating multiple conductive layers at different heights, interconnected through vias. This dimensional transition achieves multiple connection paths without increasing the horizontal device area.

The patent employs preliminary actions in the manufacturing process by pre-forming via holes through the substrate before depositing conductive materials. The via holes are prepared in advance with appropriate positioning and dimensions, and then conductive materials are selectively filled into these pre-prepared structures. This sequential preparation simplifies the overall manufacturing complexity compared to attempting to create all features simultaneously.

The patent segments the electrical connection structure into distinct functional components: substrate, via holes, first conductive layer, second conductive layer, and third conductive layer. Each segment performs a specific function and can be manufactured and characterized independently. This segmentation allows for modular manufacturing processes where each layer and connection structure can be optimized and controlled separately, reducing overall manufacturing complexity.