Specific Process Knowledge/Lithography/Strip: Difference between revisions
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! [[Specific Process Knowledge/Lithography/LiftOff|Lift-off]] | ! [[Specific Process Knowledge/Lithography/LiftOff|Lift-off]] | ||
|- | |- | ||
! scope=row| Purpose | ! scope=row style="text-align: left;" | Purpose | ||
| Resist descum | | Resist descum | ||
| | | | ||
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| Metal lift-off | | Metal lift-off | ||
|- | |- | ||
! scope=row| Method | ! scope=row style="text-align: left;" | Method | ||
| Plasma ashing | | Plasma ashing | ||
| Plasma ashing | | Plasma ashing | ||
| Line 36: | Line 36: | ||
| Solvent & ultrasonication | | Solvent & ultrasonication | ||
|- | |- | ||
! scope=row| Process | ! scope=row style="text-align: left;" | Process gasses | ||
| O<sub>2</sub> (50 sccm) | | O<sub>2</sub> (50 sccm) | ||
| | | | ||
| Line 48: | Line 48: | ||
| NA | | NA | ||
|- | |- | ||
! scope=row| Process | ! scope=row style="text-align: left;" | Process power | ||
| 10-100 W (10-100%) | | 10-100 W (10-100%) | ||
| 150-1000 W | | 150-1000 W | ||
| Line 55: | Line 55: | ||
| NA | | NA | ||
|- | |- | ||
! scope=row| Process | ! scope=row style="text-align: left;" | Process solvent | ||
| NA | | NA | ||
| NA | | NA | ||
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*IPA (rinsing agent) | *IPA (rinsing agent) | ||
|- | |- | ||
! scope=row| Substrate | ! scope=row style="text-align: left;" | Substrate batch | ||
| | | | ||
*Chips: several | *Chips: several | ||
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*150 mm wafer: 1-25 | *150 mm wafer: 1-25 | ||
|- | |- | ||
! scope=row| Substrate | ! scope=row style="text-align: left;" | Substrate materials | ||
| | | | ||
*<span style="color:red">'''No polymer substrates'''</span><br> | *<span style="color:red">'''No polymer substrates'''</span><br> | ||
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= Plasma Ashing process parameters= | = Plasma Ashing process parameters= | ||
{| | {| class="wikitable" | ||
|- | |- | ||
! !! [[Specific_Process_Knowledge/Lithography/Strip#Plasma_Asher_4|Resist stripping (PA4 & PA5)]] !! [[Specific_Process_Knowledge/Lithography/Descum#Plasma_Asher_3:_Descum|Descum (PA3)]] !! [[Specific_Process_Knowledge/Lithography/Descum#Plasma_Asher_4|Descum (PA4 & PA5)]] !! Surface treatment !! Other ashing of organic material | |||
| | |- | ||
| | ! scope=row style="text-align: left;" | Process pressure | ||
! | | 1.3 mbar || 0.8 mbar || 1.3 mbar || 0.5-1.5 mbar || 0.5-1.5 mbar | ||
! [[Specific_Process_Knowledge/Lithography/Descum|Descum | |||
! Surface treatment | |||
! | |||
|- | |||
|1.3 mbar | |||
|1.3 mbar | |||
|0.5-1.5 mbar | |||
|0.5-1.5 mbar | |||
|- | |- | ||
! scope=row style="text-align: left;" | Process gasses | |||
| | |||
| | |||
*O<sub>2</sub> (100 sccm) | *O<sub>2</sub> (100 sccm) | ||
*N<sub>2</sub> (100 sccm) | *N<sub>2</sub> (100 sccm) | ||
| | |||
*O<sub>2</sub> (45 sccm) | |||
| | | | ||
*O<sub>2</sub> (100 sccm) | *O<sub>2</sub> (100 sccm) | ||
*N<sub>2</sub> (100 sccm) | *N<sub>2</sub> (100 sccm) | ||
|O<sub>2</sub> | | | ||
|O<sub>2</sub> | *O<sub>2</sub> | ||
*N<sub>2</sub> | |||
*CF<sub>4</sub> | |||
| | |||
*O<sub>2</sub> | |||
|- | |- | ||
! scope=row style="text-align: left;" | Process power | |||
| 1000 W || 100 W || 200 W || 150-1000 W || 150-1000 W | |||
|- | |||
! scope=row style="text-align: left;" | Process time | |||
| 20-90 minutes || 1-10 minutes || 5-15 minutes || Seconds to minutes || Many hours, material dependent | |||
|- | |||
! scope=row style="text-align: left;" | Substrate batch | |||
| 1-25 || 1-2 || 1-25 || 1 || 1 | |||
|} | |||
<br clear="all" /> | |||
=Plasma Asher 1= | |||
<span style="color:red">Plasma asher 1 was decommissioned 2024-12-02.</span> | |||
[[Specific Process Knowledge/Lithography/Strip/PlasmaAsher1|Information about decommissioned tool can be found here.]] | |||
<br clear="all" /> | |||
=Plasma Asher 2= | |||
<span style="color:red">Plasma asher 2 was decommissioned 2024-12-02.</span> | |||
| | [[Specific Process Knowledge/Lithography/Strip/PlasmaAsher2|Information about decommissioned tool can be found here.]] | ||
<br clear="all" /> | |||
=Plasma Asher 3: Descum= | |||
[[image:2017-03-15 13.12.45.jpg|400px|thumb|Plasma Asher 3: Descum is a low power plasma asher dedicated for descumming on smaller substrates.]] | |||
Product name: Diener Pico Plasma Asher<br> | |||
Year of purchase: 2014 | |||
The Plasma Asher 3: Descum is dedicated for resist descum, i.e. removal of remains resist traces after development. It has a small chamber, so you can only load a single 100 mm substrate, or a few smaller pieces. | |||
In this machine, only Oxygen is used for processing. | |||
<b>Typical process parameters:</b><br> | |||
Process: Photoresist descumming<br> | |||
Pressure: 0.2-0.8 mbar<br> | |||
Gas: 45 sccm O<sub>2</sub><br> | |||
Power: 100 W (100%)<br> | |||
Time: 1 -10 minutes (depending on photoresist type and thickness)<br> | |||
Other materials have not been tested. | |||
The user manual, user APV, and contact information can be found in [http://labmanager.dtu.dk/function.php?module=Machine&view=view&mach=423 LabManager] - '''requires login''' | |||
===Process Information=== | |||
Detailed information about descum processing on Plasma asher 3: Descum can be found [[Specific Process Knowledge/Lithography/Descum|here]]. | |||
| | |||
<br clear="all" /> | <br clear="all" /> | ||
=Plasma Asher 4= | |||
[[File:PA5 front.jpg|400px|thumb|Plasma asher 4 in cleanroom E-5.|right]] | |||
Product name: PVA Tepla Gigabatch 380M<br> | |||
Year of purchase: 2024 | |||
The Plasma Asher 4 can be used for the following processes: | |||
* | *Photoresist stripping | ||
* | *Descumming | ||
* | *Surface cleaning | ||
*Removal of organic passivation layers and masks | |||
Plasma asher 4 has the following material restrictions: | |||
* | *No metals allowed | ||
*No metal oxides allowed | |||
* | *No III-V materials allowed | ||
* | |||
The user manual, risk assessment, and contact information can be found in [http://labmanager.dtu.dk/function.php?module=Machine&view=view&mach=530 LabManager] - '''requires login''' | |||
'''Typical stripping parameters'''<br> | |||
Tested with 1.5 µm AZ 5214E on 100 mm silicon substrate. | |||
*O<sub>2</sub>: 100 sccm | |||
*N<sub>2</sub>: 100 sccm | |||
*Pressure (DSC): 1.3 mbar | |||
*Power: 1000 W | |||
*Time (single wafer): 20-30 minutes | |||
*Time (full boat): 90 minutes | |||
<br clear="all" /> | |||
==Process gas ratio for plasma asher 4 & 5== | ==Process gas ratio for plasma asher 4 & 5== | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! !! Single substrate !! Full boat | ||
|- | |- | ||
! scope=row| Test results | ! scope=row style="text-align: left;" | Test results | ||
| Highest ashing rate at 30-80% Nitrogen || Highest ashing rate at 50-70% Nitrogen | | Highest ashing rate at 30-80% Nitrogen || Highest ashing rate at 50-70% Nitrogen | ||
|- | |- | ||
! scope=row| Wafers | ! scope=row style="text-align: left;" | Wafers | ||
| 1 || 25 | | 1 || 25 | ||
|- | |- | ||
! scope=row| Wafer size | ! scope=row style="text-align: left;" | Wafer size | ||
| 100 mm || 100 mm | | 100 mm || 100 mm | ||
|- | |- | ||
! scope=row| Boat position | ! scope=row style="text-align: left;" | Boat position | ||
| Center of chamber || Center of chamber | | Center of chamber || Center of chamber | ||
|- | |- | ||
! scope=row| Test wafer position | ! scope=row style="text-align: left;" | Test wafer position | ||
| Center of boat || Center of boat | | Center of boat || Center of boat | ||
|- | |- | ||
! scope=row| Total gas flow rate | ! scope=row style="text-align: left;" | Total gas flow rate | ||
| 500 sccm || 200 sccm | | 500 sccm || 200 sccm | ||
|- | |- | ||
! scope=row| Gas mix ratio | ! scope=row style="text-align: left;" | Gas mix ratio | ||
| Tested parameter || Tested parameter | | Tested parameter || Tested parameter | ||
|- | |- | ||
! scope=row| Chamber pressure | ! scope=row style="text-align: left;" | Chamber pressure | ||
| 1.25 mbar || 1.3 mbar | | 1.25 mbar || 1.3 mbar | ||
|- | |- | ||
! scope=row| Power | ! scope=row style="text-align: left;" | Power | ||
| 1000 W || 1000 W | | 1000 W || 1000 W | ||
|- | |- | ||
! scope=row| Test processing time | ! scope=row style="text-align: left;" | Test processing time | ||
| 2 minutes || 10 minutes | | 2 minutes || 10 minutes | ||
|- | |- | ||
! scope=row| Test average temperature | ! scope=row style="text-align: left;" | Test average temperature | ||
| 43°C || 47°C | | 43°C || 47°C | ||
|} | |} | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! !! Single substrate !! Full boat | ||
|- | |- | ||
! scope=row| Test results | ! scope=row style="text-align: left;" | Test results | ||
| Highest ashing rate at 1.3 mbar || Highest ashing rate at 1.4 mbar | | Highest ashing rate at 1.3 mbar || Highest ashing rate at 1.4 mbar | ||
|- | |- | ||
! scope=row| Wafers | ! scope=row style="text-align: left;" | Wafers | ||
| 1 || 25 | | 1 || 25 | ||
|- | |- | ||
! scope=row| Wafer size | ! scope=row style="text-align: left;" | Wafer size | ||
| 100 mm || 100 mm | | 100 mm || 100 mm | ||
|- | |- | ||
! scope=row| Boat position | ! scope=row style="text-align: left;" | Boat position | ||
| Center of chamber || Center of chamber | | Center of chamber || Center of chamber | ||
|- | |- | ||
! scope=row| Test wafer position | ! scope=row style="text-align: left;" | Test wafer position | ||
| Center of boat || Center of boat | | Center of boat || Center of boat | ||
|- | |- | ||
! scope=row| Total gas flow rate | ! scope=row style="text-align: left;" | Total gas flow rate | ||
| 150 sccm || 200 sccm | | 150 sccm || 200 sccm | ||
|- | |- | ||
! scope=row| Gas mix ratio | ! scope=row style="text-align: left;" | Gas mix ratio | ||
| 30% N<sub>2</sub> || 50% N<sub>2</sub> | | 30% N<sub>2</sub> || 50% N<sub>2</sub> | ||
|- | |- | ||
! scope=row| Chamber pressure | ! scope=row style="text-align: left;" | Chamber pressure | ||
| Tested parameter || Tested parameter | | Tested parameter || Tested parameter | ||
|- | |- | ||
! scope=row| Power | ! scope=row style="text-align: left;" | Power | ||
| 1000 W || 1000 W | | 1000 W || 1000 W | ||
|- | |- | ||
! scope=row| Test processing time | ! scope=row style="text-align: left;" | Test processing time | ||
| 2 minutes || 10 minutes | | 2 minutes || 10 minutes | ||
|- | |- | ||
! scope=row| Test average temperature | ! scope=row style="text-align: left;" | Test average temperature | ||
| 43°C || 55°C | | 43°C || 55°C | ||
|} | |} | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! !! Single substrate !! Full boat | ||
|- | |- | ||
! scope=row| Test results | ! scope=row style="text-align: left;" | Test results | ||
| Highest ashing rate at 200 sccm || Highest ashing rate at 200 sccm | | Highest ashing rate at 200 sccm || Highest ashing rate at 200 sccm | ||
|- | |- | ||
! scope=row| Wafers | ! scope=row style="text-align: left;" | Wafers | ||
| 1 || 25 | | 1 || 25 | ||
|- | |- | ||
! scope=row| Wafer size | ! scope=row style="text-align: left;" | Wafer size | ||
| 100 mm || 100 mm | | 100 mm || 100 mm | ||
|- | |- | ||
! scope=row| Boat position | ! scope=row style="text-align: left;" | Boat position | ||
| Center of chamber || Center of chamber | | Center of chamber || Center of chamber | ||
|- | |- | ||
! scope=row| Test wafer position | ! scope=row style="text-align: left;" | Test wafer position | ||
| Center of boat || Center of boat | | Center of boat || Center of boat | ||
|- | |- | ||
! scope=row| Total gas flow rate | ! scope=row style="text-align: left;" | Total gas flow rate | ||
| Tested parameter || Tested parameter | | Tested parameter || Tested parameter | ||
|- | |- | ||
! scope=row| Gas mix ratio | ! scope=row style="text-align: left;" | Gas mix ratio | ||
| 30% N<sub>2</sub> || 30% N<sub>2</sub> | | 30% N<sub>2</sub> || 30% N<sub>2</sub> | ||
|- | |- | ||
! scope=row| Chamber pressure | ! scope=row style="text-align: left;" | Chamber pressure | ||
| 1.3 mbar || 1.3 mbar | | 1.3 mbar || 1.3 mbar | ||
|- | |- | ||
! scope=row| Power | ! scope=row style="text-align: left;" | Power | ||
| 1000 W || 1000 W | | 1000 W || 1000 W | ||
|- | |- | ||
! scope=row| Test processing time | ! scope=row style="text-align: left;" | Test processing time | ||
| 2 minutes || 10 minutes | | 2 minutes || 10 minutes | ||
|- | |- | ||
! scope=row| Test average temperature | ! scope=row style="text-align: left;" | Test average temperature | ||
| 43°C || 47°C | | 43°C || 47°C | ||
|} | |} | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! !! Single substrate | ||
|- | |- | ||
! scope=row| Test results | ! scope=row style="text-align: left;" | Test results | ||
| Ashing rate follows | | Ashing rate follows Power | ||
|- | |- | ||
! scope=row| Wafers | ! scope=row style="text-align: left;" | Wafers | ||
| 1 | | 1 | ||
|- | |- | ||
! scope=row| Wafer size | ! scope=row style="text-align: left;" | Wafer size | ||
| 100 mm | | 100 mm | ||
|- | |- | ||
! scope=row| Boat position | ! scope=row style="text-align: left;" | Boat position | ||
| Center of chamber | | Center of chamber | ||
|- | |- | ||
! scope=row| Test wafer position | ! scope=row style="text-align: left;" | Test wafer position | ||
| Center of boat | | Center of boat | ||
|- | |- | ||
! scope=row| Total gas flow rate | ! scope=row style="text-align: left;" | Total gas flow rate | ||
| 200 sccm | | 200 sccm | ||
|- | |- | ||
! scope=row| Gas mix ratio | ! scope=row style="text-align: left;" | Gas mix ratio | ||
| 30% N<sub>2</sub> | | 30% N<sub>2</sub> | ||
|- | |- | ||
! scope=row| Chamber pressure | ! scope=row style="text-align: left;" | Chamber pressure | ||
| 1.3 mbar | | 1.3 mbar | ||
|- | |- | ||
! scope=row| Power | ! scope=row style="text-align: left;" | Power | ||
| | | Tested parameter | ||
|- | |- | ||
! scope=row| Test processing time | ! scope=row style="text-align: left;" | Test processing time | ||
| 2 minutes | | 2 minutes | ||
|- | |- | ||
! scope=row| Test average temperature | ! scope=row style="text-align: left;" | Test average temperature | ||
| | | 40°C | ||
|} | |} | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! !! Single substrate | ||
|- | |- | ||
! scope=row| Test results | ! scope=row style="text-align: left;" | Test results | ||
| Ashing rate follows | | Ashing rate follows temperature | ||
|- | |- | ||
! scope=row| Wafers | ! scope=row style="text-align: left;" | Wafers | ||
| 1 | | 1 | ||
|- | |- | ||
! scope=row| Wafer size | ! scope=row style="text-align: left;" | Wafer size | ||
| 100 mm | | 100 mm | ||
|- | |- | ||
! scope=row| Boat position | ! scope=row style="text-align: left;" | Boat position | ||
| Center of chamber | | Center of chamber | ||
|- | |- | ||
! scope=row| Test wafer position | ! scope=row style="text-align: left;" | Test wafer position | ||
| Center of boat | | Center of boat | ||
|- | |- | ||
! scope=row| Total gas flow rate | ! scope=row style="text-align: left;" | Total gas flow rate | ||
| 200 sccm | | 200 sccm | ||
|- | |- | ||
! scope=row| Gas mix ratio | ! scope=row style="text-align: left;" | Gas mix ratio | ||
| 30% N<sub>2</sub> | | 30% N<sub>2</sub> | ||
|- | |- | ||
! scope=row| Chamber pressure | ! scope=row style="text-align: left;" | Chamber pressure | ||
| 1.3 mbar | | 1.3 mbar | ||
|- | |- | ||
! scope=row| Power | ! scope=row style="text-align: left;" | Power | ||
| | | 1000 W | ||
|- | |- | ||
! scope=row| Test processing time | ! scope=row style="text-align: left;" | Test processing time | ||
| 2 minutes | | 2 minutes | ||
|- | |- | ||
! scope=row| Test average temperature | ! scope=row style="text-align: left;" | Test average temperature | ||
| | | Tested parameter | ||
|} | |} | ||
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ParamEffect_200_mm_v1.png|200 mm parameter impact | ParamEffect_200_mm_v1.png|200 mm parameter impact | ||
</gallery> | </gallery> | ||
<br clear="all" /> | <br clear="all" /> | ||
=Plasma Asher 5= | =Plasma Asher 5= | ||
[[File:PA5 front.jpg| | [[File:PA5 front.jpg|400px|thumb|Plasma asher 5 in cleanroom E-5.|right]] | ||
Product name: PVA Tepla Gigabatch 380M<br> | Product name: PVA Tepla Gigabatch 380M<br> | ||
Year of purchase: 2024 | Year of purchase: 2024 | ||
| Line 541: | Line 495: | ||
*Etching of SiO<sub>2</sub>, Si<sub>3</sub>N<sub>4</sub>, Si | *Etching of SiO<sub>2</sub>, Si<sub>3</sub>N<sub>4</sub>, Si | ||
*Removal of polyimide layers | *Removal of polyimide layers | ||
| Line 559: | Line 502: | ||
===Process Information=== | ===Process Information=== | ||
*[[Specific Process Knowledge/Etch/Etching of Silicon Oxide/SiO2 etch using Plasma Asher |SiO<sub>2</sub> etch using Plasma Asher | Plasma asher 5 is identical to plasma asher 4, see resist strip processing for plasma asher 4 [[Specific_Process_Knowledge/Lithography/Strip#Plasma_Asher_4|here]]. | ||
'''Processes specifically only for plasma asher 5:'''<br> | |||
*[[Specific Process Knowledge/Etch/Etching of Silicon Oxide/SiO2 etch using Plasma Asher |SiO<sub>2</sub> etch using Plasma Asher 1]] | |||
*[[Specific Process Knowledge/Lithography/Descum#Plasma Asher 5|Descum using plasma asher 5]] | *[[Specific Process Knowledge/Lithography/Descum#Plasma Asher 5|Descum using plasma asher 5]] | ||
| Line 565: | Line 512: | ||
=Resist Strip= | =Resist Strip= | ||
[[Image:Resist_strip.jpg| | [[Image:Resist_strip.jpg|400px|thumb|Resist strip bench in D-3]] | ||
This resist strip is only for wafers without metal and SU-8. | This resist strip is only for wafers without metal and SU-8. | ||
| Line 582: | Line 529: | ||
==Overview of wet bench 06 and 07== | ==Overview of wet bench 06 and 07== | ||
{| class="wikitable" | |||
{| | |- | ||
! !! [[Specific Process Knowledge/Lithography/Strip#Resist_Strip|Resist Strip]] !! [[Specific Process Knowledge/Lithography/LiftOff#Lift-off_wet_bench_07|Lift-off]] | |||
|- | |- | ||
! scope=row style="text-align: left;" | Process | |||
! [[Specific Process Knowledge/Lithography/Strip#Resist_Strip|Resist Strip]] | | Wet resist strip || Metal lift-off process | ||
! [[Specific Process Knowledge/Lithography/LiftOff#Lift-off_wet_bench_07|Lift-off]] | |||
|- | |||
|Wet | |||
| | |||
|- | |- | ||
! scope=row style="text-align: left;" | Chemical | |||
| Remover 1165 (NMP) || Remover 1165 (NMP) | |||
| | |||
| | |||
|- | |- | ||
! scope=row style="text-align: left;" | Process temperature | |||
| Up to 65°C || Up to 65°C | |||
|Up to 65°C | |||
|Up to 65°C | |||
|- | |- | ||
! scope=row style="text-align: left;" | Substrate batch | |||
| 1-25 wafers || 1-25 wafers | |||
| | |||
1 - 25 wafers | |||
| | |||
1 - 25 wafers | |||
|- | |- | ||
! scope=row style="text-align: left;" | Substrate size | |||
| | |||
| | |||
*100 mm wafers | *100 mm wafers | ||
*150 mm wafers | *150 mm wafers | ||
| Line 626: | Line 553: | ||
*150 mm wafers | *150 mm wafers | ||
|- | |- | ||
! scope=row style="text-align: left;" | Materials allowed | |||
| | |||
| | |||
*Silicon | *Silicon | ||
*Silicon | *Silicon oxide | ||
*Silicon | *Silicon nitride | ||
*Silicon | *Silicon oxynitride | ||
| | | All metals except Type IV (Pb, Te) | ||
All metals except Type IV (Pb, Te) | |||
|} | |} | ||
<br clear="all" /> | |||