Semiconductor IP Licensing — the business of designing reusable circuit blocks and licensing them to chip companies, enabling the modern fabless ecosystem where design effort is shared rather than duplicated.

How IP Licensing Works

1. IP company (e.g., ARM) designs a processor core / interface / memory compiler 2. Chip company licenses the IP (upfront fee + per-chip royalty) 3. Chip company integrates IP into their SoC design 4. IP company earns royalty on every chip sold

Licensing Models

• Per-design license + royalty: $1-10M upfront + $0.01-2.00 per chip. Standard for processor cores
• Subscription: Annual fee for access to IP catalog. Increasingly popular
• Royalty-free: One-time payment. Used for simpler IP blocks

Major IP Companies

• ARM: ~99% of smartphones use ARM cores. ~$3B revenue. Acquired by SoftBank, IPO 2023
• Synopsys/Cadence: Interface IP (USB, PCIe, DDR), foundation IP
• Imagination Technologies: GPU IP (PowerVR)
• CEVA: DSP and AI processor IP
• Rambus: Memory interface and security IP

IP Economics

• Total IP market: ~$7B annually
• A complex SoC may license $10-50M worth of IP
• But saves $100M+ in engineering costs and 2-3 years of development time
• ARM's royalty: Typically 1-2% of chip selling price

IP licensing is the invisible foundation of the chip industry — it's why a small startup can design a competitive SoC without building everything from scratch.