IHP OpenPDK Initiative: Bringing Open Source to Analog and RF Design

This paper presents an extended discussion of the analog and RF capabilities of the IHP-Open130-G2, a 130 nm SiGe:C BiCMOS open-source process design kit (PDK). The IHP-Open130-G2 provides an advanced platform for designing highperformance analog, mixed-signal, and RF integrated circuits, filling a crucial gap in the open-source silicon ecosystem. By leveraging high-speed heterojunction bipolar transistors (HBTs) with <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{f}_{T} / \mathbf{f}_{\text {max}}=\mathbf{3 5 0} / \mathbf{4 5 0 ~ G H z}$</tex>, as well as robust CMOS and passive elements, the PDK supports the development of next-generation RF and mm-wave applications. We also explore the key features, design flow integration, available components, and potential applications in academia and industry.