Power Module Packaging in India: A Wide-Open Field with Few Patent Holders

What it is

Power module packaging is the enclosure and interconnection of power semiconductor chips — IGBTs, MOSFETs, SiC, and GaN devices — into a single, rugged module. It provides mechanical support, electrical insulation, thermal management, and environmental protection, turning bare chips into a plug-and-play building block for power conversion.

Inside a typical module, chips are mounted on ceramic substrates with copper or AlSiC baseplates, connected by wire bonds or copper clips, and encapsulated in silicone gel. Advanced techniques like silver sintering and copper interconnects push thermal and reliability limits, especially for wide-bandgap devices that run hotter and switch faster.

This packaging is the critical bridge between semiconductor physics and real-world high-power systems. Without it, the efficiency gains of modern power chips cannot be safely harnessed in electric vehicles, solar inverters, or industrial drives.

The value chain

• Raw materials: Mining and refining of copper, silver, aluminum, ceramics, and polymers for substrates, baseplates, and encapsulants.
• Component fabrication: Production of substrates (DBC, AMB), baseplates, leadframes, wire bonds, and encapsulation materials — dominated by specialists like Kyocera, Rogers, Heraeus.
• Module assembly: Die attach (soldering or sintering), wire bonding, encapsulation, and testing — the core IP step, led by Infineon, Semikron Danfoss, STMicroelectronics, Fuji Electric, and others.
• System integration: Embedding modules into inverters, converters, and power systems by OEMs such as Tesla, Bosch, ABB, and Siemens.
• Value and defensibility concentrate in module assembly and advanced materials, where thermal performance and reliability directly impact system cost and lifetime.

Where it's heading

Global trends are reshaping power module packaging, driven by the shift to wide-bandgap semiconductors and demands for higher power density.

• SiC and GaN adoption is forcing packaging innovation for higher voltages, temperatures, and switching speeds (EE Times, SNS Insider).
• Silver sintering die-attach is replacing solder for superior thermal performance and reliability (Yole Group).
• Copper interconnects — wire bonds, clips, and leadframes — are evolving to lower resistance and improve heat spreading (Yole Group).
• Advanced ceramic substrates (Si3N4, AlN) are gaining traction to handle extreme thermal loads (Yole Group).
• Supply chain reshoring and new Asian material entrants are increasing competition and cost pressure (Yole Group).
• Miniaturization and higher power density demand better thermal management in smaller footprints (TI, EE Times).

The opportunity in India

Our dataset shows no deep-tech companies with profiles explicitly referencing power module packaging, and no patent-holding startups. However, 14 patents mapped to the technology indicate some inventive activity, likely from larger firms or research institutions.

India's discrete power semiconductor and power module market was valued at $1.86 billion in 2025 and is projected to grow at 12% CAGR to over $4 billion by 2032 (PS Market Research). Power modules are the fastest-growing segment, yet no Indian player appears in global supplier rankings — the field is dominated by European, Japanese, and Chinese firms.

This gap, combined with India's accelerating EV adoption and renewable energy targets, creates a white-space for domestic packaging startups or technology development. The thin startup presence signals an early-stage opportunity for entrepreneurs and investors willing to tackle thermal management, advanced interconnects, or wide-bandgap-compatible designs.

India signal: patents, startups, capital

Patents: 14 patents in our dataset are mapped to power module packaging. Momentum is indeterminate — the most recent filing years are not yet fully published due to India's ~18-month confidentiality period, so no trend can be inferred.

Startups: Our data lists zero deep-tech companies with profiles referencing this technology, and zero patent-holding startups. This does not rule out activity by larger Indian conglomerates or research labs, but it highlights a gap in the deep-tech startup ecosystem.

Capital: No sector-specific funding data is available in our dataset, consistent with the absence of identifiable startups in this niche.

In our data

Sources

• Why packaging is the next frontier in power design innovation ↗
• Perspective of power module packaging technology ↗
• Overview of Power Module Packaging Technologies ↗
• Power Module Packaging: From Components to Raw Materials 2026 ↗
• Power Module Packaging Evolves with Materials, Supply Chains ↗
• Power Module Packaging: Innovation is Reshaping the Supply Chain ↗
• Power Module Packaging Market Size, Share, Trends, Forecast 2030 ↗
• Power Module Packaging Market Size, Share & Growth Report 2035 ↗