India’s SCL Mohali will use its ₹4,500 crore modernization fund to expand 180nm chip capacity for defense and space sectors rather than upgrading to cutting-edge nodes. This strategy avoids long production shutdowns while addressing critical national security needs. The facility will work with partners like Tata Semiconductor and Cyient to boost output.
The Semi-Conductor Laboratory (SCL) in Mohali, India’s only operational chip fabrication plant, is prioritizing national security needs by maintaining its focus on legacy 180nm chip technology. Rather than attempting a transition to modern, high-end chipmaking nodes, the facility will use its ₹4,500 crore modernization budget to significantly increase production capacity for chips essential to defense and space applications.
Modernization Strategy and Partnership
The modernization plan, supported by the Ministry of Electronics and Information Technology, aims to increase wafer production capacity by 100 times. To achieve this, SCL has engaged three key entities—Tata Semiconductor Manufacturing, Cyient Semiconductor, and Applied Materials Singapore—to provide expertise. The initiative focuses on a strategic expansion of 8-inch wafer production lines while phasing out older 6-inch wafer facilities. The Ministry of Finance has specifically allocated ₹900 crore for this project in the current fiscal year, FY27.
Why 180nm Nodes Remain Relevant
While global chip manufacturers are racing toward smaller nodes to increase computing power, SCL’s decision to stick with the 180nm process is based on both practicality and demand. Moving to newer nodes would require a massive overhaul, including a shift to 12-inch wafers and an investment at least three times the current budget. Such a transition would force the facility to shut down for three to four years, halting the supply of chips required for critical Indian equipment, such as thermal vision cameras and other electronic systems for the armed forces.
Beyond defense, the 180nm node remains widely used in the automotive and consumer electronics industries. By optimizing the existing 8-inch infrastructure, SCL aims to balance its role as a strategic security asset with the potential for commercial output. Last year, the facility produced 10,000 commercial chips, highlighting its ability to serve broader market needs when strategic demand allows.
Operational Context for Investors
SCL currently operates with a capacity of 600 wafer starts per month (WSPM). While this scale is small compared to global giants like TSMC or upcoming private Indian ventures such as the Tata Electronics fab project, SCL serves a specialized niche. The facility operates as an integrated device manufacturer, handling the full lifecycle of a chip. For investors following the broader semiconductor ecosystem in India, the key monitorable will be the progress of the modernization plan and the timeline for when the expanded capacity becomes operational. The ability to maintain continuous production during this transition is critical to avoiding supply gaps for sensitive equipment.