# google/skywater-pdk

Open source process design kit for usage with SkyWater Technology Foundry's 130nm node.

Repository: https://github.com/google/skywater-pdk
Canonical: https://ross.abutalabs.com/products/skywater-pdk
Homepage: https://skywater-pdk.rtfd.io
Language: Python
License: Apache-2.0
License Family: permissive
Topics: eda, openroad, openram, asic, asic-library, skywater, pdk, magic
Last push: 2026-07-21T22:02:44+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 35, longevity 100
- inputs: {"age_days": 2310, "days_push": 43, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3670, forks 483 (observed 2026-08-28T04:08:13.514771+00:00)

## What it is
An open source Process Design Kit (PDK) from Google and SkyWater Technology for the SKY130 130nm semiconductor process node. It provides the libraries, models, and documentation needed to design manufacturable ASICs that can be fabricated at SkyWater's foundry.

## Use cases
- design an open source ASIC on the sky130 process node
- run open source EDA flows like OpenROAD against a real foundry PDK
- simulate and verify chip designs before tapeout
- learn digital and analog IC design with a real manufacturable process
- build test chips for silicon validation

## When to choose
- you want to design chips using fully open source tools and PDK data
- you need a free, manufacturable 130nm process for test chips or education
- you're building open hardware silicon projects like Tiny Tapeout

## When to avoid
- you need a production-guaranteed PDK for commercial tapeout today
- you need advanced nodes below 130nm
- you're doing FPGA or PCB design rather than ASIC design

## Facets
- artifact type: dataset
- maturity: active
- function: developer-tools, simulation, documentation
- domain: hardware, developer-tools, embedded-systems
- platform: cross-platform, python
- tags: pdk, asic, sky130, eda, open-source-silicon, chip-design, foundry

## Member repositories
- google/skywater-pdk (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:13.514771+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:31:19.791241+00:00, confidence not recorded.
  - readme: https://github.com/google/skywater-pdk (fetched 2026-08-28T04:08:13.514771+00:00, sha cfea2d011250)
- Data as of 2026-08-30T08:39:29.467469+00:00.