US Expands Indium Phosphide (InP) Manufacturing to Meet Growing Demand and Secure Supply Chains

The US is ramping up indium phosphide (InP) production. This move combines private investments and government support. The goal is to meet the rising demand for advanced technologies and strengthen supply chains.

InP: Essential for Emerging Tech

InP is crucial for emerging technologies. These include artificial intelligence (AI) infrastructure, data communications, 6G wireless networks, and quantum technology. Demand for data processing and energy-efficient solutions is accelerating. US semiconductor and optoelectronic manufacturers are increasing production to address this.

Geopolitical factors also play a role. China’s restrictions on gallium and germanium exports to the US highlight the need for domestic production. This safeguards supply chains and reduces reliance on foreign sources.

Key Investments Fueling InP Expansion

Several major investments are underway:

• Coherent: Invests $33 million under the CHIPS Act to expand its Sherman, Texas facility. They will transition to 6-inch InP wafer fabrication, increasing output.
• Infinera: Receives $93 million in federal funding for a new InP photonic IC fabrication facility in San Jose, California, and a test/packaging plant in Bethlehem, Pennsylvania.
• IntelliEPI: With $4.12 million from the Texas Semiconductor Innovation Fund (TSIF), they plan to triple InP and gallium arsenide wafer production in Allen, Texas.
• Lumentum: Invests $74 million to expand production of InP optical transceivers and lasers, supporting cloud computing and AI.

Strategic Goals and National Security

Increased InP production serves several strategic purposes:

• Enhances energy efficiency for data center communications.
• Strengthens supply chains vital for national security, including defense and intelligence.
• Supports development of critical technologies like LiDAR, quantum sensing, and 6G.

Federal initiatives and state-level programs like the Texas Chips Act demonstrate US commitment to advancing semiconductor and optoelectronics industries.