Specific Process Knowledge/Thin film deposition/Deposition of Nickel: Difference between revisions
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== Nickel deposition == | == Nickel deposition == | ||
Nickel can be deposited by e-beam evaporation. | Nickel can be deposited by e-beam evaporation or sputtering at DTU Nanolab. For electroplating you will have to contact other institutes at DTU, e.g., DTU Mechanical Engineering. | ||
*[[/Electroplating of nickel|Electroplating of nickel]] | Some process information is available here for e-beam evaporated films: | ||
<!--*[[/Electroplating of nickel|Electroplating of nickel]]--> | |||
*[[/Stress Wordentec Ni films|Stress in e-beam evaporated Ni films: study here]] ''(from the now decommissioned Wordentec deposition tool - basic trends in results should be transferable to other e-beam evaporators).'' | |||
In the chart below you can compare the different deposition equipment: | |||
{| border="1" cellspacing="0" cellpadding=" | {| border="1" cellspacing="0" cellpadding="3" | ||
|-style="background:silver; color:black" | |||
! | ! | ||
! E-beam evaporation ([[Specific Process Knowledge/Thin film deposition/ | ! E-beam evaporation ([[Specific Process Knowledge/Thin film deposition/Temescal|E-beam evaporator (Temescal)]] and [[Specific Process Knowledge/Thin film deposition/10-pocket e-beam evaporator|E-beam evaporator (10-pockets)]]) | ||
! Sputter deposition ([[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" | |||
! General description | |||
|E-beam deposition of Nickel | |||
|Sputter deposition of Nickel | |||
|Sputter deposition of Nickel | |||
|- | |||
|-style="background:LightGrey; color:black" | |||
! Pre-clean | |||
|Ar ion etch (only in E-beam evaporator Temescal) | |||
| | | | ||
* | |RF Ar clean | ||
|- | |||
|-style="background:WhiteSmoke; color:black" | |||
! Layer thickness | |||
|10 Å to 1 µm * | |||
|10 Å to 500 nm ** | |||
|10 Å to 500 nm ** | |||
|- | |||
|-style="background:LightGrey; color:black" | |||
! Deposition rate | |||
|1-10 Å/s | |||
|Depends on process parameters, about 1 Å/s | |||
|Depends on process parameters, at least ~ 4 Å/s, see conditions [[Specific_Process_Knowledge/Thin_film_deposition/Cluster-based_multi-chamber_high_vacuum_sputtering_deposition_system#Standard_recipe_performance|here]] | |||
|-style="background:WhiteSmoke; color:black" | |||
! Batch size | |||
| | | | ||
* | *Up to 4x6" wafers | ||
* | *Up to 3x8" wafers (ask for holder) | ||
* | *Many smaller pieces | ||
| | | | ||
* | * Pieces or | ||
* | * 1x4" wafer or | ||
* | * 1x6" wafer | ||
| | | | ||
* | *Up to 10x4" or 6" wafers | ||
*Many smaller pieces | |||
* | |||
|- | |- | ||
|- | |-style="background:LightGrey; color:black" | ||
| | !Allowed materials | ||
| | |||
| | |||
| | *Almost any that does not degas at your intended substrate temperature. See also the [https://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=429 cross-contamination sheet] | ||
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* Almost any that do not degas. See also the [https://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=244 cross-contamination sheet] | |||
| | |||
*Almost any that does not degas at your intended substrate temperature. See cross contamination sheets for [https://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=441 PC1] and [https://labmanager.dtu.dk/function.php?module=XcMachineaction&view=edit&MachID=442 PC3] | |||
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| | *May use high-strength magnet for deposition. | ||
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*May use high-strength magnet for deposition | |||
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|} | |||
'''*''' ''To deposit a cumulative thickness above 600 nm permission is required from metal@nanolab.dtu.dk to ensure enough material is present in the machine'' | |||
'''**''' ''To deposit a cumulative thickness above 200 nm permission is required from metal@nanolab.dtu.dk to ensure enough material is present in the machine'' | |||
==Quality control of e-beam evaporated Ni films== | |||
{| border="1" cellspacing="2" cellpadding="2" colspan="3" | |||
|bgcolor="#98FB98" |'''Quality control (QC) for the E-beam Evaporator (Temescal) and the E-beam Evaporator (10-pockets)''' | |||
|- | |||
| | |||
Nickel deposition is tested occasionally, around 1 time per year in each machine. You are welcome to contact staff to request an extra test of the material. | |||
'''LabManager links to procedures and data''' (require login): | |||
*[http://labmanager.dtu.dk/d4Show.php?id=5862&mach=429 QC procedure for the E-beam Evaporator (Temescal)]<br> | |||
*[https://labmanager.dtu.dk/view_binary.php?type=data&mach=429 The newest QC data for the E-beam Evaporator (Temescal)]<br> | |||
*[http://labmanager.dtu.dk/d4Show.php?id=5862&mach=511 QC procedure for the E-beam Evaporator (10-pockets)]<br> | |||
*[https://labmanager.dtu.dk/view_binary.php?type=data&mach=511 The newest QC data for the E-beam Evaporator (10-pockets)]<br> | |||
{| {{table}} | |||
| align="left" valign="top"| | |||
{| border="2" cellspacing="1" cellpadding="2" align="left" style="width:400px" | |||
! QC Recipe: | |||
! Standard recipes/Ni | |||
|- | |||
|Deposition rate | |||
|2 Å/s | |||
|- | |||
|Thickness | |||
|100 nm | |||
|- | |||
|Pressure | |||
|Below 1*10<sup>-6</sup> mbar | |||
|- | |||
|} | |||
|- | |||
|} | |||
{| {{table}} | |||
| align="left" valign="top"| | |||
{| border="2" cellspacing="1" cellpadding="2" align="left" style="width:400px" | |||
!QC limits | |||
!Both E-beam Evaporators | |||
|- | |||
|Deposition rate deviation | |||
|± 20 % | |||
|- | |||
|Measured average thickness | |||
|± 10 % | |||
|- | |||
|Thickness deviation across a 4" wafer | |||
|± 5 % | |||
|- | |||
|} | |||
|- | |- | ||
|} | |||
Thickness is measured in 5 points with a stylus profiler (usually DektakXT). <br> | |||
|} | |} | ||