Mechanical Devices (MD) is a manufacturer of thermal management systems (temperature forcing systems) for the semiconductor industry. Its integrated precision solutions are designed for temperature testing IC devices and wafers. MD thermal control units are designed with high performance and flexibility and allow for customization to suit different package and interface variations. The system enables temperature forcing on any package. MD units stimulate the DUT to the desired temperature precisely and consistently via direct contact with a thermal heads plunger. The units are self-contained for real plug-and-play setup. The thermal head uses direct contact, in which an interchangeable plunger creates direct contact with the DUT and drives Tc or Tj to the required temperature. A temperature sensor embedded in the plunger surface provides real-time temperature data. The system controller contains a touch screen for temperature control options, as well as a LAN port for full automation.