Every advanced chip is tested electrically while it is still part of a silicon wafer, and that test cannot be run without a probe card. A probe card is an interface designed for one chip and consumed with it. It connects the test equipment to the chip’s contact points, of which the most advanced cards have tens of thousands. Probe cards are one segment of the semiconductor chain in which a European company carries global weight: Technoprobe, one of the two largest manufacturers in the world, still keeps its core design and manufacturing in Italy. That position is often read as a European asset, but ownership, contracts and recent transactions tell a more complicated story. The founding family’s holding company still controls the company. It has, however, sold stakes to American and Japanese makers of test equipment and to two financial investors, and the American shareholder holds rights that can block certain decisions. Technoprobe buys circuit boards on a priority basis from one of its shareholders. In August 2026 it brought a Chinese partner into a Chinese subsidiary that is to develop its core technology there. At the same time, the European Union is drafting rules that treat chip testing as part of the semiconductor value chain and link chip supply to defence production in a crisis. The question is what kind of control European owners, governments and customers can actually exercise over this capability, and which public instruments already shape it.