Aehr Test Systems Shares Surge on Silicon Photonics Order

Shares of Aehr Test Systems (NASDAQ: AEHR) surged 30.6% this week following the announcement of its first silicon photonics customer. The semiconductor testing company disclosed an order for its wafer test and burn-in machines from a new client in the silicon photonics sector, a technology seen as pivotal for next-generation AI data centers. The order, which includes multiple systems and products, is expected to ship in the current quarter ending May 31, 2026. Aehr specializes in wafer-burn-in testing equipment that simulates high-voltage, high-heat conditions for semiconductors. The company previously found success in the electric vehicle (EV) power chip market, where its testing solutions were critical for ensuring chip durability under extreme conditions. However, declining EV demand over the past few years led to revenue declines. Now, Aehr is positioning itself for growth in the AI chip sector, where high-voltage testing remains essential for AI processors used in training and inference. The new silicon photonics customer is a leading supplier of data center networking products. Silicon photonics is gaining traction as a replacement for copper interconnects in AI data centers due to its ability to handle high-power, high-heat environments. Aehr's CEO Gayn Erickson highlighted the significance of the order, noting that the customer is purchasing systems for both engineering qualification and high-volume production, reflecting the urgency of the AI and cloud data center expansion. Despite the positive momentum, Aehr's financial results remain mixed. The company reported declining revenue in the most recent quarter and has yet to turn a profit, as recent AI-related wins have not yet offset losses from the EV market. However, the new order may provide a near-term boost to revenue and reinforce investor confidence in Aehr's long-term potential in the AI infrastructure build-out.