US Expands Indium Phosphide (InP) Manufacturing Capacity Amid Growing Demand and Supply Chain Challenges

Indium Phosphide (InP)

The US is ramping up indium phosphide (InP) production capacity through private investment and government support to meet increasing demand for optoelectronic devices and secure supply chain resilience in the face of geopolitical tensions.

Indium Phosphide Demand Drives Expansion

US semiconductor and optoelectronic manufacturers are expanding InP production capacity to address a growing supply-demand gap. InP-based technologies, essential for AI infrastructure, data communications, and emerging applications like 6G wireless and quantum technology, are becoming increasingly critical as the demand for data processing and energy-efficient solutions surges.

Geopolitical factors are adding urgency to this expansion. China's restrictions on gallium and germanium exports to the US have spurred American companies to strengthen their domestic supply chains.

Key Investments Underway

1. Coherent:

• $33 million investment under the CHIPS Act to modernize and expand its Sherman, Texas facility.
• Transitioning to 6-inch InP wafer fabrication, enabling 4x device output per wafer to meet high-volume demands.
• Additional plans to construct 6-inch wafer plants in Texas and Järfälla, Sweden.

2. Infinera:

• $93 million federal funding for a new InP photonic IC fabrication facility in San Jose, California, and a test and packaging plant in Bethlehem, Pennsylvania.
• The California facility will expand production capacity 10-fold, while the Pennsylvania plant will support advanced test and packaging for secure communications and emerging technologies.

3. IntelliEPI:

• Received $4.12 million from the Texas Semiconductor Innovation Fund (TSIF) to triple annual wafer production at its Allen, Texas facility.
• Focused on InP and gallium arsenide wafers for optoelectronic and electronic devices.

4. Lumentum:

• Scaling InP optical transceiver and laser production to support cloud computing and AI workloads.
• Investing $74 million in capacity expansions, including at its Thailand manufacturing site, with production capacity fully booked until the end of 2025.

Strengthening Supply Chains and National Security

The new InP production facilities will:

• Enhance energy efficiency for data center communications.
• Secure supply chains for national security agencies, including the Department of Defense and intelligence services.
• Support critical emerging technologies like LiDAR, quantum sensing, and 6G wireless networks.

Federal support, coupled with state initiatives like the Texas Chips Act, underscores the US government's commitment to strengthening its semiconductor and optoelectronics industry.