Vacuum Feedthroughs, Heating Elements, and Custom Process Heaters for Aerospace, University Research, Semiconductor, Medical and OEM Applications

Vacuum Pedestal Heater – Extended Sleeve

Vacuum Pedestal Heater

Heating solution for an ALD Vacuum Chamber Heater testing 6” (152mm) wafers up to 450ºC. There were obvious space constraints at the customer site requiring an extended sleeve of 25”. The extra-long length enabled the placement of the wafer on the top surface eliminating the need to modify the existing chamber.


  • Temperature 450ºC
  • 25” Long sleeve with 2.75 CF Flange on the bottom
  • Body must pass Helium Leak rate of 1 x 10-9 cc/sec He
  • 6” overall diameter for 6” (152mm) wafers
  • Top surface must have a flatness of ± .005”
  • Thermocouple for additional temperature measurement
  • 1,000 Watt (± 10%) , 120 Volt
  • Material was 304 Stainless Steel

Innovators in Semiconductor Vacuum Heaters

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