The expansion of AI data centers drives demand for power semiconductors, and the stock prices of Jiajing, Hanlei, and Mosilicon all rise

Reporter Lin Yiru/Special report

The global AI data center continues to expand, driving demand for power management and power components. The power semiconductor market has also recently reported price increases. As the demand for power semiconductors heats up, related epitaxial chip manufacturers Jiajing (3016) and wafer foundries Hanlei (3707) and Mosilicon (2342) will welcome a new wave of demand momentum. Last week, Jiajing's stock price surged 37.3%, Hanlei's rose 15.7%, and Mosilicon's rose 17.4%.

Hanlei, a power semiconductor and compound semiconductor wafer foundry, is actively developing 6-inch and 8-inch SiC/GaN process platforms to provide customers with one-stop services from epitaxy to wafer foundry. (File photo)

Epitaxy factory Jiajing is located in the upstream of the power semiconductor supply chain, mainly deploying silicon-based, silicon carbide (SiC) and gallium nitride (GaN) epitaxy materials. Xu Jianhua, chairman of Jiajing, said that AI has driven the semiconductor supply chain to grow significantly in the past one or two years, and the demand for computing power has increased. Jiajing’s power component products are facing huge business opportunities.

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Xu Jianhua pointed out that the demand for AI-related power supplies continues to be strong, which has also boosted the demand for products such as power management chips (PMICs), high-end MOSFETs (metal oxide semiconductor field effect transistors) and IGBTs (insulated gate bipolar transistors). Jiajing's 8-inch silicon-based epitaxial production capacity is fully loaded. In the third quarter, including silicon-based epitaxial and compound semiconductor product lines, price increases have been initiated. As the benefits of price increases are fermented, operations in the second half of the year will be better than the first half. Wen Jinxiang, general manager of Jiajing, also said that demand for 6-inch GaN has grown for four consecutive quarters, production capacity is at full capacity, and SiC production capacity utilization continues to increase.

Hanlei seizes AI data center and electric vehicle high-voltage business opportunities

Hanlei is actively pursuing the SiC high-voltage power component market. It has established 4-inch and 6-inch SiC process platforms and continues to promote the new generation of SiC MOSFET processes. Hanlei not only has a high-voltage SiC process layout, but also expects to extend its application from automotive and industrial control to the AI ​​server power supply chain. Hanlei also recently announced the launch of a new generation of Gen5 SiC DMOS technology platform, targeting applications such as electric vehicles, AI data centers, 800V high-voltage DC power supply, energy storage and smart grids.

Mosilicon currently focuses on 6-inch mature processes, covering wafer foundry applications such as power components, and continues to promote SiC product layout. As the expansion of AI data centers drives demand for power management and power components, the legal person is optimistic that Mosilicon has the opportunity to benefit from the spillover effect, and some peripheral chips that do not need to use 8-inch and 12-inch production capacity may have the opportunity to move to the 6-inch process. Mosilicon's SiC products will continue to undergo customer verification in the second half of the year, and the more significant revenue contribution is expected to come next year.

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