³Ô¹Ïtv / ENGINEERING EXPLANATIONWorked example and model boundaryILLUSTRATIVE INPUTSurface must carry a solderable component landDefine fill + planarization + metal surfaceReview a complete filled-and-capped routeA polymer tent or partial plug is not automatically equivalent to a solderablemetal cap.This example is a model explanation, not a quoted limit or an approval.Conceptual diagram, not to scale. Dimensions and examples are not manufacturing limits.