Abstract: 
MOS-AK Meetings are organized with aims to strengthen a network and discussion forum among experts in the field, enhance open platform for information exchange related to compact/Spice modeling and Verilog-A standardization, bring people in the compact modeling field together, as well as obtain feedback from technology developers, circuit designers, and CAD tool vendors. The topics cover all important aspects of compact model development, implementation, deployment and standardization within the main theme - frontiers of the compact modeling for nm-scale MEMS/NEMS designs, CMOS/SOI and HEMT IC simulation. The content will be beneficial for anyone who needs to learn what is really behind the FOSS CAD/EDA IC simulation in modern device models in Open Access PDKs.

Abstract: 
In this presentation, we will present the current status and future roadmap for the development of the IHP Open Source Process Design Kit. We will give an overview of the ongoing projects and a timeline for new features such as PDK support for open source Radhard and RF designs. In addition, we will present a schedule for access to free design area in IHP Multi project wafer runs and explain the conditions and procedures for this. We will also give an outlook on how special offers for access to IHP open source technology can be maintained.

Abstract: 
In this presentation, we describe latest PSP and L-UTSOI developments, standard compact models dedicated respectively to bulk and FDSOI technologies. Used in industrial Process Design Kits for years, these models are a highly mature and its strong physical background makes it very accurate and predictive. For PSP model, we present the recent major release 104.0 which introduced some key feature such as: improvement of charge model calculation for short channel, new DIBL model based on a quasi-Fermi level correction including screening effect in inversion regime, improvement of S/D symmetry based on C∞ function, new binning equation with “hybrid� approach. For L-UTSOI model, we present the recent release 102.7 which introduced some key feature around improvement of robustness of the model regarding cryogenic temperature: introduction of new potential reference shift from the source intrinsic energy level to the source conduction band energy level, introduction of band tails effect through with low temperature subthreshold slope saturation model

Abstract: 
The charge-based model of the MOS transistor is a highly versatile tool in circuit design and engineering education. The model clarifies relationships among key circuit-design Figures-of-merit (FoMs) such as transconductance, transconductance-to-current ratio, self-gain, capacitance, gain-bandwidth (GBW), noise and mismatch. All these quantities are directly related to the mobile charge in the MOS channel. Simple parameter extraction procedures will be discussed. Analytical equations and a minimal parameter set allow one to express the design quantities continuously in all operating regions, from weak through moderate and strong inversion. The model is a highly valuable tool in educating analog design engineers. Finally, some application examples, including related to recent open-source PDKs, will be presented.

Abstract: 
The release by IHP-GmbH in September 2023, of a Process Design Kit (PDK) specification for a 130nm BiCMOS process provides IC designers access to an open source PDK for analog, digital mixed signal and RF IC Design. An important goal of the IHP project is to provide PDK, and related data, that are freely available for creating manufacturable designs at IHP’s facility based on FOSS software. The open access Qucs-S circuit simualtion package has been selected by IHP as a central tool in the IC design sequence. This presentation outlines the background and the IHP PDK capabilities currently implemented with Qucs-S, Ngspice and OpenVAF. The recent release of Qucs-S version 24.2.0 further expands the tool set to include RF microstrip layout and analysis, using the Qucs-RFlayout and openEMS software. Throughout the presentation, a series of simulation examples are introduced. These demonstrate the application of Qucs-S in analog, mixed mode analog/digital and RF design. All the software introduced in this talk is freely available and can be downloaded using the internet links provided.

Abstract: 
The open-source Process Design Kit (openPDK), as initiated by IHP for chip design in the SG13G2 process technology, aims to leverage openEMS as a comprehensive full-wave electromagnetic field solver platform in the very context of mm-wave chip design. The platform openEMS is an EC-FDTD based solver, controllable via Python or Matlab/Octave scripting. This scripting language-based control affords a high level of flexibility for structure creation, mesh line discretization, and postprocessing, making it well-suited for integration into a development workflow system. Initial steps in applying openEMS have been taken, as evidenced by the inclusion of basic simulation examples and GDSII converter functionality within IHP's openPDK GitHub repository. These examples feature integrated circuit components such as on-chip spiral inductors, transmission lines, and a metallization model with a specific 3D representation for non-sheet metal structures. The ongoing development of openEMS, is partly funded within the DI-DEMICO project as part of the BMBF’s DE:Sign funding measure. Here we focus on critical process milestones, such as automatic mesh generation for physically accurate structure discretization while minimizing simulation time. Additionally, models of standard IC blocks (e.g. transmission lines, pad frames, vias, corresponding transition structures) will be designed, accompanied by a comprehensive tutorial documentation for seamless integration into IHP's openPDK.

Abstract: 
Recently, open-source initiatives for chip design and EDA methodology are picking up momentum and see a quickly growing community. In this talk some considerations will be given about the reasons behind this growth, the potential value for both research/academia and Industry, as well as opportunities of OS usage.

Abstract: 
During this presentation, we will examine the driving factors behind the growing popularity of open-source integrated circuit (IC) design tools. Additionally, we will explore the current state of these tools and the recently introduced open-source process design kits, with a specific emphasis on analog, mixed-signal, and radio frequency (RF) applications. We will present a meticulously selected collection of electronic design automation (EDA) tools and discuss their utilization in a mixed-signal circuit design flow. Furthermore, we will highlight recent advancements that have been made possible through the collaborative nature of open-source projects. Lastly, we will encourage collaborative efforts and discuss areas in which contributions to these projects are needed.

Abstract: 
In this talk we summarize the state of open source design flows for digital design based on our own experience of taping out Linux capable 64-bit RISC-V SoCs using IHP 130 openPDK. While there are some challenges, we show that complete open source flows from RTL to GDS is at a more advanced state than what most people realize and highlight what aspects need more support from the community.