"Let’s see if the vertical coupling actually works," he muttered. He opened the Macro Editor and pulled up his .d25 script. He had spent the last hour meticulously defining the z_start and height for each layer, transforming abstract data into a physical stack. He clicked .
A dedicated list on the right allows you to toggle specific material groups on or off, which is useful for "peeling back" upper metal layers to see lower-level transistor structures.
Here’s a social media post you can use for LinkedIn, Twitter, or a tech forum like Reddit (r/chipdesign, r/klayout): klayout 25d view
# Example to extrude Metal 1 from z=0.1 to z=0.3 z(input(10, 0), zstart: 0.1, zstop: 0.3, name: "Metal1") Use code with caution. Limitations and Practical Constraints
: The total vertical thickness of the extruded layer material. "Let’s see if the vertical coupling actually works,"
| | Benefit in 2.5D | |--------------|----------------------| | Via overlap checking | Quickly see if a via correctly bridges two metal layers without toggling visibility | | Layer sequence understanding | Instantly grasp which layer is above another in the stack-up | | Design review presentations | Non-experts (e.g., packaging engineers) intuitively understand the layout | | Debugging DRC violations | Spot unexpected protrusions into forbidden Z-ranges |
KLayout's 2.5D (often called "25D") view provides a simple and effective way to visualize layered semiconductor layouts with an embossed, height-coded representation that helps designers inspect layer stacking, overlaps, and process-related thickness information. He clicked
for a specific process stack (like a standard CMOS metal stack) to get started? Colors in the 2.5d View - KLayout Layout Viewer And Editor
z(input_object, zstart:..., zstop:..., name: "layer_name") : Extrudes the input object from zstart to zstop . Example:
The 2.5D view respects your 2D layout settings. If you change a layer's fill color or hide it in the main viewer, it will update in the 2.5D window.