Category Archives: Semiconductor


THERMOCOAX has reached a major milestone this year. The company is celebrating its 60th anniversary.

60 years of service to our customers, 60 years of innovation in the nuclear, aerospace, semicon, and industrial markets meeting the expectations of these sectors through their constantly evolving applications.

To celebrate this event, the teams undertook the crossing of the bay of Mont Saint-Michel last month.  Braving the cold, the mud, and the rivers (sometimes full), we managed to chase the clouds and together we reached the finish line of this jewel of architecture, The Mont Saint-Michel, also called the “Wonder of the West”.  It was a very beautiful day revealing the mutual effort, team spirit, strong human values of THERMOCOAX.




Cast Aluminum Chuck

This Cast Aluminum Chuck is produced for semiconductor layer deposition in the CVD/PVD/ALD processes.

This design is a 100% customized solution allowing a large range of heating chucks from 100 mm to 450 mm in diameter. It  may be equipped with RF thermocouples able to withstand high radio frequencies (example: 13.56 MHz) and avoid perturbative noise during temperature measurement.

Technical features :

Cast Aluminum Chuck design for optimal thermal uniformity and an improved inner thermal exchange compared to a machined version. Down to -/+ 0.5% according to the temperature set point.

Based on the THERMOCOAX Mineral Insulated cable technology, the Cast Aluminum Chuck has a heating wire design using the hot/cold transition in the same diameter inserted inside the chuck.

chuck                hot-cold junction
    Chuck                                                                         Heating element with Hot / cold junction

  • Working temperature range : 50°C to 450°C
  • Flatness : down to 0.01 mm
  • Voltage : up to 240 Volts

The THERMOCOAX Cast Aluminum Chuck  can be equipped with lift pin holes and have an integrated cooling tube for air or water circulation and can be heated according to 1 or 2 heating zones.

This customized solution provides strong flexibility in terms of diameter, thickness and power supply.

The Cast Aluminum Chuck is an extremely reliable design with a high cost efficiency.

THERMOCOAX and heating solutions for Semiconductor industry :

  • Machined Aluminum Chuck
  • Stainless steel Chuck
  • Nickel Chuck
  • Various heating plates


Chuck                                                                              Semicon Heating plate
SEMICON - chuck SEMICON-heating plate Semicon




  Nicolas Letul |