High Performance Layout Viewer and Editor for your Windows system

KLayout (64-bit)

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KLayout 0.27.1 (64-bit)

  -  171 MB  -  Freeware
Free Download

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Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of KLayout 0.27.1 (64-bit).


For those interested in downloading the most recent release of KLayout (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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Download KLayout 0.27.1 (64-bit)

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What's new in this version:

Enhancement:
- "without_density" goes outside the boundary of the input layer. A new keyword ("padding_ignore") can be added to with_density/without_density to ignore parts outside the boundary instead of treating them as zero density.
- Feature suggestion: DRC to report edges attached to corners as edge pairs. There is a new output mode "as_edge_pairs" in addition to "as_dots" and "as_boxes" now.
- More flexibility on Spice reader A number of new features has been provided for the spice reader delegate
- DRC: a couple of new filters on edge pair layers:
- with_angle/without_angle: filter by angle of the edges (one or both)
- with_length/without_length: filter by length of the edges (one or both)
- with_distance/without_distance: filter by distance of the edges
- Added Edge#cut_point method
- LEF macro layouts now can be specified in UI
- Performance improvements and memory footprint reduction for OpenRAM test case

Fixed:
- DRC: clear_connections and incremental connect was not working This is an important feature for correctly implementing antenna checks
- LVS: CustomComparer is not working
- DRC Layer#smoothed lacks the "keep_hv" argument
- Unstable application with verbose log output
- Bug on each_image_selected
- Query issue (or general: expression issue) A problem with memory corruption in certain scenarios was causes an application crash.
- Use system font instead of hard coded "Monospace"
- DRC "flatten" did not always flatten, but kept layers hierarchically
- full_edge, negative output for fragmented polygon vs. small ones (space, enclosure, overlap) In some cases, only parts of the edges were reported and negative output was incorrect. In addition, negative output for two-layer checks - such as "l1.drc(sep(l2) > 0.2)" - now only is produced for the primary layer. With both outputs it was difficult to separate the components.
- computed layers were printed with layer properties in lvsdb files sometimes.
- a number of typos fixed and documentation clarifications
- DRC "or" was producing flat output in deep mode

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