#############################################
Open source Starter Kit:
PDK:
SG13G2
https://github.com/IHP-GmbH/IHP-Open-PDK 
SG13CMOS5L
https://github.com/IHP-GmbH/ihp-sg13cmos5l 
Documentation of the PDK:
https://ihp-open-pdk-docs.readthedocs.io/en/latest/ 
IHP-AnalogAcademy:
https://github.com/IHP-GmbH/IHP-AnalogAcademy 
Digital Flow for SG13G2 
https://github.com/IHP-GmbH/ihp-sg13g2-librelane-template 
Digital Flow for SG13CMOS5L
https://github.com/IHP-GmbH/ihp-sg13cmos5l-librelane-template 
Fossi Chat
https://matrix.to/#/#ihp-sg13g2:fossi-chat.org 
IHP-Open-PDK related courses:
https://github.com/bmurmann/EE628 
https://iic-jku.github.io/analog-circuit-design/aicd.html 
https://iic-jku.github.io/radio-frequency-integrated-circuits/rfic.html 
Open-Silicon MPW offer at IHP:
https://dk.ihp-microelectronics.com/OpenSourceRequest.php 
IHP-ChatGPT
https://chatgpt.com/g/g-sovooLd0V-ihp-open-pdk 

Fabricated chips available for renting:
https://github.com/IHP-GmbH/TO_May2024/
https://github.com/IHP-GmbH/TO_Nov2024/
https://github.com/IHP-GmbH/TO_Dec2024/
https://github.com/IHP-GmbH/TO_Apr2025/
https://github.com/IHP-GmbH/TO_May2025/
https://github.com/IHP-GmbH/TO_July2025/
https://github.com/IHP-GmbH/TO_Sep2025/
#############################################

https://wafer.space/
https://chipfoundry.io/challenges/application
https://nlnet.nl/propose/