Integrated circuit (IC) and micro-electromechanical systems (MEMS) designs are inherently three-dimensional. However, traditional Electronic Design Automation (EDA) layout tools restrict engineers to a flat, two-dimensional top-down perspective. This creates a critical gap between design intent and physical reality.
To get the most out of KLayout’s rendering capabilities, keep these best practices in mind: 1. Leverage Opacity for Hidden Structures
Manipulating the 3D viewport smoothly requires familiarizing yourself with KLayout's navigation shortcuts: klayout 25d view
The KLayout 2.5D view is an indispensable tool for any layout designer working with 2D GDSII files who needs a better understanding of the vertical dimension. By bridging the gap between 2D editing and 3D reality, it significantly improves the efficiency of layout debugging and visual inspection.
For designers working with PDKs (Process Design Kits), it's worth noting that for the most reliable experience, you should rather than relying on versions bundled with other EDA flows like OpenLane, which may not have the required Qt5 and OpenGL support. To get the most out of KLayout’s rendering
While there is no single academic "paper" exclusively dedicated to the KLayout 2.5D view
Enter the —a powerful, integrated feature that provides a pseudo-3D representation of your layout, allowing designers to inspect connectivity and vertical structure without the complexity of a full 3D CAD tool. What is the KLayout 2.5D View? For designers working with PDKs (Process Design Kits),
Modern process nodes use stacked vias to connect lower metals to global routing layers. A single missing via or a slight mask shift can cause an open circuit. By rotating the 25D view to a sharp side angle, you can trace a signal path from Metal 1 up to the top pad layer to ensure continuity. 2. MEMS Design Visualization
: You can even export net traces into the 2.5D view to see how a specific electrical signal travels through the vertical stack.