India is officially moving from being a “chip consumer” to a “chip maker.” On December 22, 2025, the Tata Group and Japanese semiconductor giant ROHM announced a massive strategic partnership to build an end-to-end semiconductor ecosystem right here in India.
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The thing is, this isn’t just about the future—it’s about “now.” The collaboration is focusing on power semiconductors, which are the brains behind things like EV inverters and server power supplies. Or nothing. Let’s be real, while everyone is talking about 2nm phone chips, these power chips are what actually keep the electric car revolution moving. Those too.
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The First Product: The MOSFET
The first big win for this partnership is the India-designed Nch 100V, 300A Si MOSFET.
The Goal: Mass production shipments are targeted for early 2026.
The Spec: It uses a TOLL package—basically a fancy way of saying it’s tiny but handles massive amounts of electricity (300 Amps!) with way less heat.
The Use Case: These are “automotive-grade,” meaning they’ll end up in the next generation of Indian-made EVs.
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Why This Matters: The Tata “Fab” Factor
Tata isn’t just signing deals; they are building the physical infrastructure to back them up.
Jagiroad, Assam: A ₹27,000 crore OSAT (assembly and testing) facility is coming up here. It’s expected to be operational by April 2026.
Dholera, Gujarat: Tata is building India’s first commercial Fab here with an $11 billion investment.
Vemgal, Karnataka: They already have an OSAT plant running here, which is likely where the early ROHM testing will happen.
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Collaboration at a Glance
| Feature | Details |
| Partners | Tata Electronics & ROHM (Japan) |
| Primary Focus | Power Semiconductors (Si MOSFETs) |
| Key Advantage | “Designed in India, Manufactured in India” |
| Target Market | Automotive, AI Servers, and Industrial Power |
| Production Start | 2026 (Mass Shipments) |
And here’s the kicker: this deal comes just one week after Tata signed a similar pact with Intel. It’s an ongoing blitz to make sure that by 2027, when you buy a piece of tech in India, the “silicon heart” inside it was actually made in an Indian factory.
It feels like the “missing piece” of the Make in India puzzle is finally being slotted in. The partnership between Dr. Randhir Thakur (Tata) and Dr. Kazuhide Ino (ROHM) is a bet that India can become a global hub for semiconductor packaging.
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