Business · Business & Market
Royalty model
A pricing structure where the IP owner earns a percentage of chip ASP or a fixed fee for every unit a licensee ships. It defers most revenue until the licensee reaches volume production, which can be years after the licence is signed.
- Also known as
- Per-unit royalty, Royalty
- Type
- Business
- Domain
- Business & Market, Business models
Notes
Royalty rates in the low single-digit percent are common; licensees negotiate caps and floors on high and low ASP parts.
Overview
A royalty model is a way of charging for chip IP or an architecture in which the owner is paid for every unit a licensee ships, set either as a percentage of the chip's selling price or as a fixed amount per chip. It usually sits alongside a licence fee, so the IP owner earns some money when the deal is signed and the rest only once products sell. The model ties the IP vendor's income to the licensee's commercial success.
How it works
A licensee signs an agreement for a processor design, interface IP or an instruction set architecture, normally paying a licence fee. Arm's annual report describes royalties set as a percentage of the chip's average selling price or as a fixed fee per unit, with per-chip rates typically falling as volumes grow. Royalties start only once the licensee ships a chip containing the IP, which can be many months or years after signing.
The IP owner cannot count the units itself, so licensees report their shipments, commonly every quarter. Arm recognises royalties in the quarter chips ship, using estimates, and adjusts them when the actual reports arrive; its agreements generally give it the right to audit licensees' records.
Variants shift the balance between up-front and per-unit payments. Arm Flexible Access offers no-cost or low-cost access to IP, with licence fees due only at tapeout for the IP actually used, plus royalties on shipped units. At the other extreme, the RISC-V instruction set and its ratified extensions are royalty free. Because a chip may ship for many years, royalties give the IP owner a long tail of income, but one exposed to the licensee's pricing and volumes.
Examples
- A smartphone processor built with Arm CPU cores, on which the chipmaker pays Arm a royalty for each chip shipped.
- A start-up using Arm Flexible Access, paying licence fees at tapeout only for the cores in its final chip and then royalties on shipped units.
- A microcontroller team comparing an Arm core, with licence and royalty terms, against a core based on the royalty-free RISC-V instruction set.
- A royalty operations team reconciling licensees' quarterly shipment reports and using the audit rights in a licence when the figures look wrong.
Why it matters
Royalty terms shape the economics of both sides. For an IP vendor they turn one design into income across many products and years; for a chip company they add a cost to every unit, which must be built into pricing. IP licensing managers, royalty operations analysts, contracts counsel and product line managers negotiate, track and audit these terms.
Related terms
Part of the Business & Market glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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Last reviewed . Written by The Semiconductor Hub editorial team. The full glossary