Tata Electronics and L&T Semiconductor Join Hands to Make Chips in India

Two of India’s largest engineering and industrial conglomerates have unified their semiconductor efforts to create a domestic, full-stack silicon manufacturing pipeline. Tata Electronics and L&T Semiconductor Technologies Limited (LTSCT), a wholly owned subsidiary of Larsen & Toubro, have entered into a strategic partnership to expand the indigenous design, fabrication, assembly, and testing of market-leading chips for global and domestic commercial markets.

The landmark pact bridges the gap between fabless silicon engineering and physical foundry infrastructure inside the country. Under the agreement, L&T Semiconductor Technologies will drive the product architecture and chip design, while Tata Electronics will handle wafer fabrication, advanced packaging, and commercial-scale testing across its emerging production sites.

The Division of Labor: Fabless Design Meets Advanced Foundry Scale

The alliance addresses one of the primary historical vulnerabilities in India’s semiconductor strategy-the disconnect between high-level engineering talent and domestic fabrication facilities:

• L&T Semiconductor (Design & Architecture): As India’s premier fabless enterprise, LTSCT focuses on developing intellectual property (IP) and system-on-chip (SoC) architectures across Power, Compute, Analog/Mixed-Signal, RF (Radio Frequency), and IoT modules.
• Tata Electronics (Fabrication, Packaging & Test): Tata Electronics provides the foundry and backend processing. The company will utilize its pure-play commercial foundry network and Outsourced Semiconductor Assembly and Test (OSAT) infrastructure to translate L&T’s architectural tape-outs into physical packaged silicon.
• Design-for-Manufacturability (DFM) Alignment: The collaboration includes joint design-to-fabrication optimizations to ensure that L&T’s chip designs match Tata’s specific process nodes, maximizing wafer yields and speeding up commercial qualification cycles.

Strategic Breakdown: Tata Electronics and L&T Semiconductor Alliance

Operational Parameter	Strategic Implementation Detail
Partnership Scope	End-to-end design, fabrication, packaging, and testing
L&T Semiconductor Role	Fabless chip architecture, analog/power design, and IP development
Tata Electronics Role	300mm wafer fabrication, OSAT assembly, packaging, and testing
Target Product Lines	Power ICs, Microcontrollers (MCU), Compute, Analog, RF modules
Target Verticals	Automotive, industrial automation, telecom, data centers, energy
Manufacturing Hubs	Dholera (Gujarat Fab) and Jagiroad (Assam Packaging Unit)
Policy Framework	India Semiconductor Mission (ISM) and Semicon 2.0

Supporting Automotive, Industrial, and Intelligent Edge

The chips developed under this joint venture will target sectors undergoing rapid electrification and software-defined transformations:

• Automotive & EV Power Trains: Developing microcontrollers (MCUs) and power management integrated circuits (PMICs) for electric vehicles, battery management systems (BMS), and advanced driver-assistance architectures.
• Industrial Automation & Energy: Creating high-voltage power semiconductors and analog controllers suited for solar inverters, smart electricity grids, and industrial robotics.
• Telecommunications & Data Centers: Supplying energy-efficient edge processors, connectivity silicon, and radio-frequency chips to reduce import reliance on foreign silicon vendors.

Catalyzing India’s Full-Stack Semicon 2.0 Ambition

The partnership directly aligns with the Government of India’s Semicon 2.0 vision, which emphasizes moving beyond raw component assembly toward higher domestic value addition:

According to Dr. Sandeep Kumar, Chief Executive of L&T Semiconductor Technologies, semiconductor leadership is increasingly determined by the ability to industrialize advanced designs through integrated packaging and manufacturing. Partnering with Tata provides a scalable domestic pathway to bring India-designed silicon to global supply chains.

Echoing this, Dr. Randhir Thakur, CEO & MD of Tata Electronics, noted that combining LTSCT’s design expertise with Tata’s manufacturing, packaging, and testing facilities marks a major step toward establishing India as a self-reliant, full-stack semiconductor nation.

Manufacturing Readiness: Dholera Fab and Assam OSAT

The realization of the partnership leverages massive capital investments already underway by Tata Electronics:

• Dholera Mega-Fab (Gujarat): In partnership with Taiwan’s Powerchip Semiconductor Manufacturing Corporation (PSMC), Tata is constructing a 300mm (12-inch) AI-enabled wafer fabrication plant in Dholera, Gujarat, targeted to process up to 50,000 wafers monthly on mature nodes spanning 28nm to 110nm.
• Jagiroad OSAT Facility (Assam): Tata’s multi-billion-dollar semiconductor assembly and testing site in Jagiroad, Assam, is slated to handle advanced packaging formats (wire-bond, flip-chip, and integrated system-in-package solutions) essential for finishing L&T’s industrial silicon.

By creating a direct commercial pipeline between India’s leading fabless design house and its flagship pure-play foundry, the Tata-L&T alliance forms the foundational backbone of India’s commercial semiconductor ecosystem.