After extensive research, the Solid State Physics Laboratory (SSPL) under the Defense Research and Development Organization (DRDO) has succeeded in developing an indigenous process for producing 4-inch diameter Silicon Carbide (SiC) wafers and Gallium Nitride (GaN) High Electron Mobility Transistors (HEMTs). This is not only an achievement for domestic research but also showcases the resilient will of our scientists.
The successful development of SiC wafers and HEMT MMIC technology for X-band applications signifies a giant lead in India’s semiconductor research and defense capabilities. The development of Silicon Carbide wafers also aligns with the Aatmanirbhar Bharat Abhiyan, initiated by Prime Minister Narendra Modi, which will serve to reduce nation’s dependence on foreign semiconductor technology, whilst also elevating India’s position in defense, aerospace, and green energy sectors.
Indigenous Development of Silicon Carbide and GaN HEMT MMIC
The recent success of the Solid State Physics Laboratory (SSPL) also signifies India’s growing prowess in defense technology and semiconductor self-reliance. Being able to deploy GaN HEMT up to 150W for X-band applications will allow equipment to perform efficiently even in extreme conditions, and thus, the technology is paramount for military and aerospace operations. Furthermore, this will also allow DRDO to address critical RADAR, electronic warfare, and satellite communication needs.

Strategic Importance of GaN/SiC Technology for Defense and Aerospace
Gallium Nitride on Silicon Carbide is touted as a transformative technology for the defense and aerospace sectors. It is much smaller, yet efficient and thus, perform exceptionally well under high-stress conditions. Furthermore, the GaN/SiC will also help next-gen combat systems, by offering a much higher frequency and power solutions.
In recent years, there have been multiple sessions throughout the country that study the impact of GaN MMIC on strategic systems. Thus, the Indian Defense sector stands to gain from such achievement. Also, the technology has been independently developed by the country, which further strengthens the vision of Aatmanirbhar Bharat. Possible benefits of Sic/GaN HEMT MMIC include:
- Overall improvement in communications, intelligence, surveillance, and reconnaissance (CISR).
- Lightweight power supply for unmanned aerial vehicles (UAVs).
- Strategic growth of electronic warfare.
- Efficient Green energy
- Supports 5G infrastructure
- Can help electric vehicles (EVs).
GAETEC, Hyderabad To Expand Production Capabilities
Although the Gallium Arsenide Enabling Technology Centre (GAETEC), in Hyderabad has succeeded in achieving limited production for Gan/Sic MMICs, catering to a number of applications in strategic defense and aerospace industries, it is all set to expand production to meet potential higher demands from other sectors as well. This is a well-thought-out step in establishing India’s independence in semiconductor manufacturing.
Aatmanirbhar Bharat: The Role of Silicon Carbide wafers
The successful development of Gan/Sic-based MMICs has put India on the road of self-reliance. The Indigenous development has opened doors for sustainable and continued production of highly required semiconductors while reducing the reliance on foreign technologies. By simply producing such high-end and reliable MMICs in-house, the country can stand shoulders with others on the global stage. Furthermore, it is also critical for India’s security and sovereignty, as a major part of the global semiconductor market has already been conquered by China.
The successful development of Gan/Sic by SSPL and DRDO can serve as a cornerstone for future innovation, which can promote military modernization. The road to next-gen RADARs, advanced satellite communications, electronic warfare, and counter-warfare is much clearer.
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A Giant Step Towards Global Semiconductor Leadership
The successful development of Silicon Carbide wafers and deployment of GaN HEMT MMIC technology is not only significant domestically but will also put India on the map as an emerging global power. The demand for Silicon Carbide-based semiconductors is at an all-time high. This can help India cement its position as a global semiconductor leader.