Specific Process Knowledge/Thin film deposition/Deposition of Tantalum: Difference between revisions

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== Tantalum deposition ==
== Tantalum deposition ==


Tantalum can be deposited by e-beam evaporation. In the chart below you can compare the different deposition equipment.  
Tantalum can be deposited by e-beam evaporation and sputter deposition. In the chart below you can compare the different deposition equipment.
 
==Sputtering of Tantalum==
 
You can read more about Ta sputter deposition using Sputter-System(Lesker)


*[[Specific_Process_Knowledge/Thin_film_deposition/Deposition_of_Tantalum/Sputtering of Ta|Sputtering of Ta in Sputter-System (Lesker)]].
== E-beam evaporation of Tantalum ==
Tantalum can be deposited by e-beam assisted evaporation in the Temescal tool.
*[[/Ta Ebeam evaporation in Temescal |E-beam evaporation of Ta in Temescal]]
<!---->


{| border="1" cellspacing="0" cellpadding="4"  
{| border="1" cellspacing="0" cellpadding="4"  
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! E-beam evaporation ([[Specific Process Knowledge/Thin film deposition/Temescal|Temescal]])
! E-beam evaporation ([[Specific Process Knowledge/Thin film deposition/Temescal|Temescal]])
! Sputter ([[Specific_Process_Knowledge/Thin_film_deposition/Lesker|Lesker]])
! Sputter ([[Specific_Process_Knowledge/Thin_film_deposition/Lesker|Lesker]])
! Sputter deposition ([[Specific Process Knowledge/Thin film deposition/Cluster-based multi-chamber high vacuum sputtering deposition system|Sputter-system Metal-Oxide (PC1) and Sputter-system Metal-Nitride (PC3)]])
|-
|-
|-style="background:WhiteSmoke; color:black"  
|-style="background:WhiteSmoke; color:black"  
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| E-beam deposition of Ta  
| E-beam deposition of Ta  
(line-of-sight deposition)
(line-of-sight deposition)
| Sputter deposition of Ta
(not line-of-sight)
| Sputter deposition of Ta
| Sputter deposition of Ta
(not line-of-sight)
(not line-of-sight)
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! Pre-clean
! Pre-clean
|Ar ion source
|Ar ion source
|RF Ar clean
|RF Ar clean
|RF Ar clean
|-
|-
|-style="background:WhiteSmoke; color:black"  
|-style="background:WhiteSmoke; color:black"  
! Layer thickness
! Layer thickness
|10Å to 0.6 µm*
|10Å to 0.2 µm*
|10Å to ?
|10Å to ?
|10Å to ?
|-
|-
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|0.5Å/s to 10Å/s
|0.5Å/s to 10Å/s
|~0.3Å/s
|~0.3Å/s
|at least in the range 1 Å/s to 4 Å/s
|-
|-
|-style="background:WhiteSmoke; color:black"  
|-style="background:WhiteSmoke; color:black"  
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*1x4" wafer or
*1x4" wafer or
*1x6" wafer
*1x6" wafer
|
*Pieces or
*10x4" wafer or
*10x6" wafer
|-
|-


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*See also the [http://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=429 cross-contamination sheet]
*See also the [http://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=429 cross-contamination sheet]


|
* Silicon
* Silicon oxide
* Silicon nitride
* Silicon (oxy)nitride
* Photoresist
* PMMA
* Mylar
* SU-8
* Metals
* Carbon
|
|
* Silicon
* Silicon
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|-style="background:WhiteSmoke; color:black"
|-style="background:WhiteSmoke; color:black"
! Comment
! Comment
|As of August 2018, Ta has not yet been deposited in the Temescal.
| Tantalum deposition heats the chamber*
Please contact the Thin Film group to develop a process.
| 2-inch Ta target
|
| 3-inch Ta target
|}
|}


'''*'''  ''If depositing more than 600 nm in total, write to metal@danchip.dtu.dk well in advance to ensure enough material is present.''
'''*'''  ''The max thickness is limited to 200 nm as Ta deposition heats the chamber. If you wish to deposit more than that, it has to be done in several steps. The temperature on the back of a Si wafer rose to above 160 °C during deposition of 40 nm Ta even when using a cooling plate. If you wish to e-beam deposit Ta, please contact the [mailto:thinfilm@nanolab.dtu.dk Thin film group].''

Latest revision as of 12:13, 13 June 2023

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Unless otherwise stated, this page is written by DTU Nanolab internal

Tantalum deposition

Tantalum can be deposited by e-beam evaporation and sputter deposition. In the chart below you can compare the different deposition equipment.

Sputtering of Tantalum

You can read more about Ta sputter deposition using Sputter-System(Lesker)

E-beam evaporation of Tantalum

Tantalum can be deposited by e-beam assisted evaporation in the Temescal tool.


E-beam evaporation (Temescal) Sputter (Lesker) Sputter deposition (Sputter-system Metal-Oxide (PC1) and Sputter-system Metal-Nitride (PC3))
General description E-beam deposition of Ta

(line-of-sight deposition)

Sputter deposition of Ta

(not line-of-sight)

Sputter deposition of Ta

(not line-of-sight)

Pre-clean Ar ion source RF Ar clean RF Ar clean
Layer thickness 10Å to 0.2 µm* 10Å to ? 10Å to ?
Deposition rate 0.5Å/s to 10Å/s ~0.3Å/s at least in the range 1 Å/s to 4 Å/s
Batch size
  • Up to 4x6" wafers
  • Up to 3x8" wafers (ask for holder)
  • Many smaller pieces
  • Pieces or
  • 1x4" wafer or
  • 1x6" wafer
  • Pieces or
  • 10x4" wafer or
  • 10x6" wafer
Allowed materials
  • Silicon
  • Silicon oxide
  • Silicon nitride
  • Silicon (oxy)nitride
  • Photoresist
  • PMMA
  • Mylar
  • SU-8
  • Metals
  • Carbon
  • Silicon
  • Silicon oxide
  • Silicon nitride
  • Silicon (oxy)nitride
  • Photoresist
  • PMMA
  • Mylar
  • SU-8
  • Metals
  • Carbon
Comment Tantalum deposition heats the chamber* 2-inch Ta target 3-inch Ta target

* The max thickness is limited to 200 nm as Ta deposition heats the chamber. If you wish to deposit more than that, it has to be done in several steps. The temperature on the back of a Si wafer rose to above 160 °C during deposition of 40 nm Ta even when using a cooling plate. If you wish to e-beam deposit Ta, please contact the Thin film group.