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Fremont Firm AXT, Inc. Pioneers Cutting-Edge Semiconductor Substrates
15 Nov, 2025
Summary
- AXT, Inc. designs and manufactures semiconductor substrates for data, 5G, and renewable energy
- Offers indium phosphide, gallium arsenide, and germanium substrates for various applications
- Sells products globally through direct sales and independent representatives
As of November 15, 2025, Fremont, California-based AXT, Inc. continues to be a pioneer in the design, development, and distribution of advanced semiconductor substrates. The company offers a diverse range of products, including indium phosphide, semi-insulating and semi-conducting gallium arsenide, and germanium substrates, catering to a wide array of high-tech applications.
AXT's indium phosphide substrates are in high demand for their use in data center connectivity, high-speed data transfer, 5G communications, and fiber optic lasers and detectors. The company's gallium arsenide substrates are sought after for Wi-Fi and IoT devices, power amplifiers, and solar cells, while its germanium substrates are utilized in multi-junction solar cells for satellites and infrared detectors.
In addition to these core semiconductor offerings, AXT also provides specialized materials such as purified gallium, boron trioxide, and pyrolytic boron nitride crucibles. The company sells its products globally through its direct sales force in the United States, China, and Europe, as well as through independent sales representatives and distributors in Japan, Taiwan, Korea, and other international markets.
