v0.5.7

What's Changed

• Component min spacing by @lukasc-ubc in #210
  • minimum-gc-spacing implemented, from DFT.xml, using minimum-gc-spacing = 60

v0.5.6

• scripts.replace_cell improvement
• fixes to contra directional coupler simulations, passing number of periods

v0.5.5

Unit Testing, Continuous Integration

• GitHub Actions to test the code

Scripting:

• connect_pins_with_waveguide: option to put the waveguide (and error Paths) in a specific parent cell
• update y_splitter_tree: use sbends if available for the waveguide, as defined in WAVEGUIDES.XML. adjust the origin to be the left side input waveguide.
• connect_pins_with_waveguides: error handling. raise Exception rather than just a Message window: in case there are many errors, it will stop at the first one.

v0.5.4

• improvements to Docker build for testing
• support for DFT.xml file when running verification using PyPI
• area calculation function update, using all layers

v0.5.3

• Functional Verification ('v' hotkey) is working in external Python, SiEPIC.utils.verify_layout

v0.5.0

SiEPIC-Tools is now available on PyPI.

You can now create PCells and layouts using one of three approaches:

• KLayout Application: GUI graphical mode, with the KLayout IDE
• KLayout batch mode: run using klayout -zz -r, without any graphics
• Python "import SiEPIC", using VSCode, Spyder, Jupiter notebooks, etc.

The SiEPIC-EBeam-PDK has been made compatible with the external Python environment approach.

The following example will create a layout with all the EBeam PDK cells on a layout. Change the path to point to your local GitHub copy of the EBeam PDK, then run this file: https://github.com/SiEPIC/SiEPIC_EBeam_PDK/blob/master/klayout/EBeam/pymacros/Example_scripted_layouts/UnitTest_All_Library_Cells.py
You can run it in VScode.

Several additional functions have been added:

• SiEPIC.scripts.instantiate_all_library_cells
• SiEPIC.scripts.load_klayout_technology
• SiEPIC.utils.new_layout

Some performance improvements and bug fixes have been made.

v0.4.6

• SiEPIC-Tools now functions in headless mode
  • running using klayout -zz -r script.py
  • updated functions to work without Qt libraries and the GUI
  • to be compatible with unit testing script in the EBeam PDK
• Make SiEPIC component from cell
  • Automates the process of adding DevRec and PinRec layers. Menu item SiEPIC > Layout > Make SiEPIC Component from cell. https://github.com/SiEPIC/SiEPIC-Tools/wiki/Component-and-PCell-Layout#importing-a-gds-fixed-cell
• bug fix: snap components in the GUI. was introduced after making change to find_pins()

v0.4.5

• fix Lumerical CML installation, via SiEPIC > Simulation, Circuit > Setup Lumerical INTERCONNECT Compact Model Library

v0.4.4

• bug fixes in undo
• bug fixes in path to waveguide, in the order in which snapping, crossings, and waveguide generation, is performed
• moved Verification to separate Python file
• new verification rule: identify pin errors in components
• new verification rule: shapes need to be inside a component

v0.4.3

bug fix:

• sometimes a KLayout crash occurred after an Undo operation, after having done "Shift-W" Waveguide to Path.

improvement:

• Schematic Driven Layout [work in progress] now uses the Instantiate utility when pulling from INTERCONNECT

function improvement:

• delete_extra_top_cells: argument is now either a cell or text