Tata Electronics & Japan’s ROHM Partner for Auto Chips; Jagiroad Unit Preps for 2026 Market Launch
By Axel Miller | 22 Dec 2025
Tata Electronics has solidified a definitive strategic partnership with Japan-based semiconductor major ROHM Co. to assemble and test automotive-grade power semiconductors in India. This agreement represents a pivotal step in establishing a domestic supply chain for the electric vehicle (EV) sector, effectively moving the country from import dependency toward high-value local manufacturing. Under the finalized pact, Tata Electronics will deploy advanced backend manufacturing for ROHM’s India-designed N-channel 100V, 300A silicon MOSFET. These components will be housed in the high-efficiency TOLL (Transistor Outline Leadless) package, which is a critical component for power management in modern automotive systems.
The collaboration targets mass production shipments by early 2026, leveraging newly commissioned infrastructure to serve both domestic and international markets. This partnership integrates ROHM’s mature device technology with the rapidly scaling Outsourced Semiconductor Assembly and Test (OSAT) capabilities of Tata Electronics. By aligning their sales and manufacturing channels, the companies aim to slash lead times and immunize the supply chain against global disruptions.
Dr. Kazuhide Ino, Member of the Board and Managing Executive Officer at ROHM Co., noted that the partnership is essential to building a sustainable, region-based supply chain network capable of meeting surging demand. Similarly, Dr. Randhir Thakur, CEO and Managing Director of Tata Electronics, highlighted the geopolitical significance of the deal, noting it would strengthen trust and resilience in the global semiconductor supply chain while cementing India’s status as a competitive high-tech manufacturing hub.
The ROHM agreement activates the production capabilities of a massive $14 billion semiconductor ecosystem. The Jagiroad OSAT facility in Assam, representing a $3.2 billion (₹27,000 crore) investment, has completed its initial commissioning and is currently in the final qualification stages with a projected output of 4.8 crore chips per day. Meanwhile, the Dholera Fab in Gujarat, an $11 billion commercial wafer fabrication plant built with Taiwan’s PSMC, is progressing toward trial silicon production for 28nm to 110nm nodes. These efforts are supported by the Bengaluru Pilot Line in Karnataka, which has been validating indigenous packaging solutions since late 2023. This broader ecosystem is further fortified by strategic alliances with global heavyweights including Intel, Merck Electronics, Bosch, and Bharat Electronics.
Summary
The Tata Electronics–ROHM partnership marks the first large-scale commercial operationalization of India’s power semiconductor framework. By focusing on Si MOSFETs in high-efficiency TOLL packaging, the alliance addresses a critical supply gap in the EV and industrial markets. With the $3.2 billion Assam plant entering its final qualification phase, Tata Group has successfully transitioned from infrastructure development to revenue-generating commercial agreements, solidifying its role as the anchor of the India Semiconductor Mission.
Frequently Asked Questions
Q1: What is the core objective of the Tata–ROHM partnership?
The partnership localizes the assembly and testing of automotive-grade power semiconductors to reduce import reliance and strengthen the supply chain for the Electric Vehicle and industrial sectors.
Q2: Which specific products will be manufactured?
The facility will manufacture ROHM’s N-channel 100V, 300A silicon MOSFET in a TOLL package, which is used for high-efficiency power management in electric vehicles.
Q3: What is the current status of the Jagiroad plant in Assam?
As of December 2025, the $3.2 billion facility has finished its initial commissioning and is in the qualification phase, with mass commercial shipments scheduled for early 2026.
Q4: When will the first "Made in India" chips from this deal be available?
Commercial shipments are targeted for the first half of 2026, while trial production at the Dholera Fab is also expected to begin trial phases in the coming months.
Q5: How many jobs are being created by this initiative?
The Jagiroad facility alone is projected to create 27,000 jobs, including 15,000 direct positions and 12,000 indirect roles at full capacity.
Q6: Who are the primary partners for Tata’s fabrication plant?
Tata Electronics is building its $11 billion fab in Gujarat in partnership with Taiwan’s PSMC (Powerchip Semiconductor Manufacturing Corp).