$APRTEC is a Swedish thermal management company validated in space by NASA and ESA, with a global tech customer integrating its EHD technology into chip-level product development. Every watt of AI compute becomes heat. In 3D-packaged chips that heat is trapped inside the package, and rack-level cooling cannot reach it. The solution requires a pump small enough to operate at microchannel scale with no moving parts. Mechanical pumps have a physical lower bound on miniaturization. Electrohydrodynamic conduction pumps do not. APR has spent 15 years developing EHD micropumps for highly demanding thermal environments, including spacecraft qualified by ESA and NASA. Space qualification imposes reliability requirements that are among the most demanding in any industry and are generally more stringent than those found in commercial data center environments. An unnamed global tech company has now integrated APR’s EHD pump into its product development and placed a pilot production order. That moves the relationship beyond pure evaluation. The confirmatory event is a volume order from the tech customer. It would move APR from a component in a competitive cooling layer to a potential node in near-chip thermal management. Risks: •The tech customer remains unnamed and the volume decision is not yet taken. The relationship could stall. •APR’s space and defense channel runs through ZIHET, which controls production, distribution and customer relationships. The economics accruing to APR remain uncertain. •Core EHD conduction pumping is prior art from 2003. Patent protection covers specific implementations, not the principle. A well-funded competitor could develop an alternative path. Position: Long, small and a volume order from the tech customer would materially change the size of this position.

Cooling is now one of the main constraints on AI compute - direct cooling on chip is the future. Corintis have raised $24 million, adds Intel CEO Lip-Bu Tan to board reuters.com/business/chip-co… ~ 400m usd pre-money valuation. Interesting to follow Swedish $APRTEC.

De har en mycket större marknad än vad de flesta känner till: open.substack.com/pub/kstefa…