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WHO WE ARE

RFIC design, rebuilt around AI

RapidRF AI Inc. is a team built on deep RF and AI expertise, building Circuit Studio - the AI-native platform that takes an RF chip from spec to tapeout-ready layout in under an hour.

Fabricated RapidRF RFIC die
A fabricated RapidRF RFIC, imaged post-tapeout.

OUR MISSION

Making RF Design Programmable

RapidRF exists to give RF engineers the one thing physics never let them have: speed without compromise.

For forty years, digital chip design has moved forward on algorithms. RF design moved forward on people, one engineer's hard won intuition at a time, because no algorithm could hold biasing, stability, noise, matching and layout parasitics in mind at once, across every process corner, without a physical simulation to catch it when it drifted. That is why a single RFIC could take a quarter to design, and why RF earned a reputation as black magic no algorithm could touch.

We built the AI that ends that constraint. HeaviMind encodes RF intuition directly into a model that reasons in the physics itself, not in language, so it explores, generates and verifies a design the way an expert would, at a speed no team of experts ever could. What used to take a quarter now takes hours, and the engineer who used to spend that quarter defending a design now spends it inventing the ones that were never possible before.

A DIFFERENT KIND OF AI

Physics, Not Language

Most AI in engineering today is a language model wrapped in agentic tooling: it plans, orchestrates and writes code, but it has no physical grounding. Ask it to design an RF circuit against real specifications and it fails, reliably, because RF performance is governed by physics a language model never learned. Layout, matching, stability and noise cannot be talked into existing. They have to be simulated and verified.

HeaviMind takes the opposite approach. It is not a wrapper around existing EDA tools, and it does not describe circuits in text tokens. It is a physics grounded AI that reasons directly in the RF domain and verifies every design against classical circuit simulation, the same ground truth an expert engineer would use.

LLM + Agents

Design logic
Learned from text, no RF physics
Verification
Described after the fact, if at all
Circuit generation
Fails on real specs, needs templates
Domain grounding
Generic reasoning, no RF-specific priors
Output
Plans, code, orchestration

HeaviMind

Design logic
RF intuition encoded directly, physics grounded
Verification
Grounded in classical circuit simulation
Circuit generation
Full generation and optimization, any topology
Domain grounding
Purpose-built for RF: physics, foundry PDKs, measured silicon
Output
Tapeout ready GDS, DRC clean

THE PROBLEM

Why RF Stayed Manual

  • Biasing
  • Process Corners
  • Stability
  • EM Coupling
  • Noise Figure
  • Layout Parasitics
  • Impedance Matching

Digital chip design has run on algorithms for forty years: place and route, timing closure and verification are solved problems. RF design never got there, because RF performance depends on physical effects that interact continuously rather than digitally: bias, stability, noise figure, impedance matching, layout parasitics, process corners and EM coupling all move together, and a small error in any one of them shows up as bad silicon.

No textbook formula captures that interaction. Engineers learn to navigate it the way any craft is learned: by designing hundreds of circuits, watching what comes back from the fab, and building an intuition that cannot be written down as a decision tree. That is why RF engineering earned its reputation as black magic, and why it resisted the kind of automation that transformed digital design decades ago.

THE SOLUTION

From Intuition to Algorithm

HeaviMind

HeaviMind encodes that missing intuition directly into a physics grounded AI, so it can generate and optimize a design the way an expert engineer would, for any topology, with classical circuit simulation confirming every result.

DANTE

DANTE, our AI native transistor modeling engine, keeps that simulation physically accurate. It learns directly from measured silicon, most importantly large-signal measurements, and keeps improving every time a new chip comes back from the foundry, so every generation of designs starts from a better foundation than the last.

The result is already running: full LNAs, driver amplifiers and power amplifiers generated, optimized and made tapeout ready in under an hour, with performance that matches or beats designs that used to take months of manual iteration. Layout and area optimization that once took days now takes minutes, without giving up the performance the original design achieved.

RF design was always called an art, a craft passed down rather than computed, because no one knew how to compute it. HeaviMind changes that: RF design becomes an optimization problem, solved from the ground up.

THE VISION

The Artificial RF Design Engineer

We are building toward what we call the artificial RF design engineer: an AI that develops expert level solutions for any RF specification, collaborates with engineers on novel architectures and trade off decisions as a true co-pilot, and scales from a single component to a complete RF system. It already generates and optimizes full circuits end to end, and lets engineers compare candidates and choose their own trade offs today.

What is coming is a platform that keeps expanding: reaching any circuit type beyond amplifiers, growing with large scale RF models and faster AI solvers, and open to engineers bringing their own architectural knowledge directly into it, always on their own terms. This is not a distant roadmap. The foundation is built, the stack is running, and the direction is clear: RF engineering gets its own artificial design engineer, the way digital design got its algorithms, only faster, and built for the engineers who use it.

HOW WE GOT HERE

Proven where it counts - in silicon

2024 · EuMW

First AI-generated RF MMIC tapeout

Working with Miller MMIC, we completed the first-ever AI-generated RF MMIC tapeout, benchmarked directly against human-designed circuits at the European Microwave Week. That milestone became the foundation Circuit Studio still runs on today.

SINCE

Shipping on real foundry process technology

Circuit Studio runs live today on WIN Semiconductors and United Monolithic Semiconductors (UMS) process nodes - not a simulated sandbox. Every design generated on the platform is built against the same PDKs used for production fabrication.

TODAY

Expanding beyond LNAs and drivers

Power amplifier support is live in beta on WIN's Ka-band NP12-0B node, built with design partners rather than in isolation - the same approach we're taking to every new device class and process technology we bring online.

WHY TEAMS PARTNER WITH US

What working with RapidRF actually looks like

Engineers, not a sales pipeline

Every walkthrough and every design conversation is run by the RF engineers who built the platform. You're never routed through account management to get a real technical answer.

Built on real foundry relationships

Every process technology on Circuit Studio is a production PDK from an active foundry partner - what you design against is what you can actually fabricate.

No lock-in on what you build

Designs export as standard SnP and GDS-II - take your results into whatever EM solver, layout tool, or fabrication process you already trust.

WHERE WE BUILD

Two teams, one mission

Our teams in San Diego and Aachen work closely together on everything we build, from the AI models to the layouts our customers take to tapeout, with one mission: make RFIC design fast enough, and affordable enough, for every team that needs it.

RAPIDRF AI INC.

Based in San Diego and Aachen, building for RF teams everywhere

5414 OBERLIN DR, Suite 250, San Diego, CA 92121

+1 (888) 385-0444

sales@rapidrf.ai