https://github.com/gdsfactory/cspdk

Cornerstone PDK
https://github.com/gdsfactory/cspdk

Last synced: 2 months ago
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Cornerstone PDK

• Host: GitHub
• URL: https://github.com/gdsfactory/cspdk
• Owner: gdsfactory
• License: mit
• Created: 2024-03-04T00:52:31.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2026-02-20T09:05:01.000Z (5 months ago)
• Last Synced: 2026-02-20T13:08:28.653Z (5 months ago)
• Language: Python
• Homepage: https://gdsfactory.github.io/cspdk/
• Size: 4.37 MB
• Stars: 16
• Watchers: 2
• Forks: 12
• Open Issues: 7
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS
  • Agents: AGENTS.md

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README

          

# CORNERSTONE PDK 1.4.3

[![Docs](https://github.com/gdsfactory/cspdk/actions/workflows/pages.yml/badge.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/pages.yml)

[![Tests](https://github.com/gdsfactory/cspdk/actions/workflows/test_code.yml/badge.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/test_code.yml)

[![DRC](https://github.com/gdsfactory/cspdk/raw/badges/drc.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/drc.yml)

[![Model Regression](https://github.com/gdsfactory/cspdk/actions/workflows/model_regression.yml/badge.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/model_regression.yml)

[![Test Coverage](https://github.com/gdsfactory/cspdk/raw/badges/coverage.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/test_coverage.yml)

[![Model Coverage](https://github.com/gdsfactory/cspdk/raw/badges/model_coverage.svg)](https://github.com/gdsfactory/cspdk/actions/workflows/model_coverage.yml)

[![Issues](https://github.com/gdsfactory/cspdk/raw/badges/issues.svg)](https://github.com/gdsfactory/cspdk/issues)

[![PRs](https://github.com/gdsfactory/cspdk/raw/badges/prs.svg)](https://github.com/gdsfactory/cspdk/pulls)

![](https://i.imgur.com/V5Ukc6j.png)

[CORNERSTONE](https://www.cornerstone.sotonfab.co.uk/) Photonics PDK.

## Installation

We recommend `uv`

```bash

# On macOS and Linux.

curl -LsSf https://astral.sh/uv/install.sh | sh

```

```bash

# On Windows.

powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

```

### Installation for users

Use python 3.11, 3.12 or 3.13. We recommend [VSCode](https://code.visualstudio.com/) as an IDE.

```

uv pip install cspdk --upgrade

```

Then you need to restart Klayout to make sure the new technology installed appears.

### Installation for contributors

Then you can install with:

```bash

git clone https://github.com/gdsfactory/cspdk.git

cd cspdk

uv venv --python 3.12

uv sync --extra docs --extra dev

```

## Documentation

- [gdsfactory docs](https://gdsfactory.github.io/gdsfactory/)

## Pre-commit

```bash

make pre-commit

```

## Release

1. Bump the version:

```bash

tbump 0.0.1

```

This triggers the release workflow that builds wheels and uploads them.

2. Create a pull request with the updated changelog since last release.