esmo offers final-test contactors for its own handlers and rival machines
Image: © esmo group
Esmo is showing its Vulcon contactors at SEMICON Europa in Munich, with the first configurations aimed at testing automotive and industrial power semiconductors. The company will supply the range for other manufacturers’ handlers as well as for its own.
The contactor sits between the packaged device and the tester, making and breaking the electrical connection each time the handler presents a part. Esmo says it will configure the hardware to the device and test cell, rather than offer one fitting that can be transferred between machines unchanged.
On a power-device line, a small rise in contact resistance can show up as apparent variation between parts, particularly if the measurement includes the voltage drop across the contact. That makes the way the contactor is wired and maintained part of the specification, alongside the mechanical fit. The ability to buy across several handler brands broadens the sourcing options, but the same contactor specification won’t necessarily carry across a move to a different package or test current.
The initial range also covers power devices used in data centre supplies. Esmo expects the first European and Asian shipments before the end of 2026 and hasn’t published a family-wide current rating or contact life.
Sources: esmo release via SEMI
