skywater-pdk/docs/rules/background.rst

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Background
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SKY130 is a mature 180nm-130nm hybrid technology developed by Cypress Semiconductor that has been used for many production parts. SKY130 is now available as a foundry technology through SkyWater Technology Foundry.
The technology is the 8th generation SONOS technology node (130nm).
The technology stack consists of;
- 5 levels of metal (`p` - penta)
- Inductor or Inductor-Capable (`i`)
- Poly resistor (`r`)
- SONOS shrunken cell (`s`)
- Supports 10V regulated supply (`10R`)