Atomic Layer Deposition Recipes

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Back to Vacuum Deposition Recipes.

Atomic Layer Deposition (Oxford FlexAL)

Oxford FlexAL Chamber #1: Metals

Pt deposition (ALD CHAMBER 1)

  • Ch1_TMCpPt+O3-300C
  • Pt deposition rate ~ 0.5-0.6A/cyc
  • recipe utilizes the ozone generator which must be first set to the following conditions: O2 flow = 250sccm, O3 concentration = 15 wt%
  • Conductivity data: (to be added soon)

Ru deposition (ALD CHAMBER 1)

  • Ch1_Ex03Ru[HPbub]+O2-300C
  • Ru deposition rate ~ 0.6-0.7A/cyc.
  • Conductivity data: (to be added soon)

ZnO:Al deposition (ALD CHAMBER 1)

Al-Doped ZnO for variable resisitivity.

  • Ch1_DEZ/TMA+H2O-200C (Al dose fraction = 5% for lowest resistivity)
  • ZnO deposition rate ~ 1.7A/cyc
  • resistivity ~ (390A film)

Oxford FlexAL Chamber #3: Dielectrics

Al2O3 deposition (ALD CHAMBER 3)

  • Ch3_TMA+H2O-300C: Al2O3 deposition rate ~ 1A/cyc

AlN deposition (ALD CHAMBER 3)

  • Ch3_TMA+100W/20N*-300C: AlN deposition rate ~ t.b.d.
  • recipe utilizes a N* plasma @ 100W, 20mTorr pressure.

HfO2 deposition (ALD CHAMBER 3)

  • Ch3_TEMAH+H2O-300C: HfO2 deposition rate ~ 0.9-1.0A/cyc
  • Note: deposition shows significant parasitic growth (via CVD channel) if H2O purge/pump times are not sufficient.

SiO2 deposition (ALD CHAMBER 3)

  • Ch3_TDMAS+250W/O*-300C: SiO2 deposition rate ~ 0.7-0.8A/cyc
  • recipe utilizes an O* plasma @ 250W, 5mTorr pressure

ZrO2 deposition (ALD CHAMBER 3)

  • Ch3_TEMAZ+H2O-300C: ZrO2 deposition rate ~ 0.9-1.0A/cyc
  • not directly characterized since results are basically the same as the HfO2 process above.
  • as for the HfO2 process, deposition will exhibit significant parasitic growth unless long H2O purge/pump cycles are in place.

TiO2 deposition (ALD CHAMBER 3)

  • Ch3_TDMAT+H2O-300C: TiO2 deposition rate ~ 0.6A/cyc
  • Note: deposition shows parasitic growth (via CVD channel) if H2O purge/pump times are not sufficient.

TiN deposition (ALD CHAMBER 3)

  • Ch3_TDMAT+N*/H*-300C: TiN deposition rate ~ 0.7A/cyc
  • Conductivity data: (to be added soon)