SPICE Model Collections

A comprehensive collection of open-source and simplified BSIM (Berkeley Short-channel IGFET Model) SPICE models for circuit simulation, benchmarking, and evaluation. This repository provides ready-to-use transistor models across multiple SPICE simulators including NGSPICE, HSPICE, and SPECTRE.

📋 Table of Contents

• 📁 Repository Structure
• 🚀 Quick Start
• 📚 Available Models
• ⚖️ License
• 📞 Support
• 🙏 Acknowledgments

📁 Repository Structure

spice_model_collections/
├── bsim/                          # BSIM model files
│   ├── nmos_bsim1.hspice         # BSIM1 models for HSPICE
│   ├── nmos_bsim1.ngspice        # BSIM1 models for NGSPICE
│   ├── nmos_bsim1.spectre        # BSIM1 models for SPECTRE
│   ├── nmos_bsim2.hspice         # BSIM2 models
│   └── ...                       # Additional BSIM levels
├── ptm/                           # Predictive Technology Models
│   ├── 180nm_bulk.pm             # 180nm bulk CMOS models
│   ├── 130nm_bulk.pm             # 130nm bulk CMOS models
│   ├── 90nm_bulk.pm              # 90nm bulk CMOS models
│   ├── 65nm_bulk.pm              # 65nm bulk CMOS models
│   └── ...                       # Additional PTM models
│   └── 7pfet_HP.pm               # 7nm PFET high performance
├── MODELS.md                      # Comprehensive parameter reference
└── README.md                      # This file

🚀 Quick Start

Prerequisites

• SPICE simulator (NGSPICE, HSPICE, or SPECTRE)
• Basic understanding of SPICE syntax

Installation

1. Clone the repository:

   git clone https://github.com/SJTU-YONGFU-RESEARCH-GRP/spice_model_collections.git
   cd spice_model_collections

2. Choose your technology and model:

   • BSIM Models: Use files from bsim/ directory
     • NGSPICE: .ngspice files
     • HSPICE: .hspice files
     • SPECTRE: .spectre files
   • PTM Models: Use files from ptm/ directory (compatible with HSPICE/SPECTRE)

3. Include models in your SPICE deck:

   * BSIM4 example
   .include bsim/nmos_bsim4.ngspice
   
   * PTM 22nm example
   .include ptm/22nm_LP.pm
   

📚 Available Models

BSIM Models

Model	Level	Status	Description
BSIM1	LEVEL=4	✅ Available	First-generation BSIM model
BSIM2	LEVEL=5	✅ Available	Improved short-channel effects
BSIM3v3	LEVEL=8	✅ Available	Industry standard for deep submicron
BSIM4	LEVEL=14	✅ Available	Latest BSIM with advanced features
Level 1-3	LEVEL=1-3	✅ Available	Classic SPICE MOSFET models

PTM (Predictive Technology Models)

Predictive Technology Models from ASU provide industry-standard transistor models for academic research and benchmarking across multiple technology nodes.

Technology Node	Transistor Type	Status	Description
180nm	Bulk CMOS	✅ Available	1.8V supply voltage
130nm	Bulk CMOS	✅ Available	1.5V supply voltage
90nm	Bulk CMOS	✅ Available	1.2V supply voltage
65nm	Bulk CMOS	✅ Available	1.2V supply voltage
45nm	Low Power (LP)	✅ Available	1.1V supply voltage
32nm	Low Power (LP)	✅ Available	1.0V supply voltage
22nm	Low Power (LP)	✅ Available	0.95V supply voltage
22nm	High Performance (HP)	✅ Available	1.0V supply voltage
16nm	NFET/PFET HP	✅ Available	0.7V supply voltage
14nm	NFET/PFET HP	✅ Available	0.8V supply voltage
10nm	NFET/PFET HP	✅ Available	0.75V supply voltage
7nm	NFET/PFET HP	✅ Available	0.7V supply voltage

PTM Model Features:

• BSIM4-based compact models
• Both NMOS and PMOS transistors
• Multiple threshold voltage options (HP/LSTP)
• Validated against ITRS projections
• Widely used in academic research

Supported Simulators

• NGSPICE: Open-source SPICE simulator
• HSPICE: Synopsys HSPICE (commercial)
• SPECTRE: Cadence SPECTRE (commercial)

⚖️ License

This project is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) - see the LICENSE file for details.

Model Licensing Notes

• Models are provided under their respective open source licenses
• Default license for new contributions is CC BY 4.0
• Simplified/educational models may have additional usage restrictions
• Commercial use requires verification of licensing terms
• Please check individual model files for specific licensing information

📞 Support

• Issues: GitHub Issues
• Discussions: GitHub Discussions
• Documentation: MODELS.md

🙏 Acknowledgments

• BSIM Research Group at UC Berkeley for developing the BSIM models
• SPICE Community for maintaining open-source simulation tools
• Contributors who help maintain and expand this collection