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4 inch wafer

Short Name:

4"

The following is a list of equipment where 4 inch round substrates are allowed.

Equipment name & NEMO ID	Training Required & Charges	Cleanliness	Location	Notes
Matrix Plasma Resist Strip matrix	Matrix Plasma Resist Strip Training	Flexible	SNF Cleanroom Paul G Allen L107	Single wafer tool with auto loading from a cassette. Pieces need a pocket carrier wafer for transport. Chuck temperature controls wafer heating.
Karl Suss MA-6 Contact Aligner karlsuss2	Contact Aligner Karl Suss MA-6 Training	All	SNF Cleanroom Paul G Allen L107	1:1 Contact Aligner. Backside align.
Flexus 2320 Stress Tester stresstest	Stress Tester Flexus 2320 Training	All	SNF Cleanroom Paul G Allen L107
Lesker2 Sputter lesker2-sputter	Sputter Lesker 1&2 Training	Semiclean	SNF Cleanroom Paul G Allen L107	reactive O2/N2 sputtering, substrate bias, substrate heating, co-sputter
MVD mvd	MVD Training	Flexible	SNF Cleanroom Paul G Allen L107	Reactor located inside glovebox
Wet Bench Resist Strip wbresstrip-1	Wet Bench Resist Strip	Clean (Ge), Semiclean, Flexible	SNF Cleanroom Paul G Allen L107	Wet Resist Removal: SRS-100 or PRS1000
Xactix Xenon Difluoride Etcher xactix	Xactix Xenon Difluoride Etcher Training	All	SNF Cleanroom Paul G Allen L107	Isotropic Si etching; can be used for backside Si removal on small pieces
Karl Suss MA-6 Contact Aligner karlsuss	Contact Aligner Karl Suss MA-6 Training	All	SNF Cleanroom Paul G Allen L107	1:1 Contact Aligner. Backside align, including IR.
AJA2 Evaporator aja2-evap	Evaporator AJA2	Semiclean	SNF Cleanroom Paul G Allen L107	For more than 300nm deposition, please contact Graham Ewing<grahamj.ewing@stanford.edu> in advance
SEM -Zeiss Merlin sem-merlin	SEM-Merlin Training	All	SNF Exfab Paul G Allen 104 Stinson
Profilometer AlphaStep D-300 alphastep2	AlphaStep2 Training	Flexible	SNF Exfab Paul G Allen 104 Stinson
Keyence Digital Microscope VHX-6000 keyence	Microscope Keyence Training	All	SNF Exfab Paul G Allen 104 Stinson
Heidelberg MLA 150 heidelberg	Heidelberg Training	All	SNF Exfab Paul G Allen 104 Stinson	Direct Write
Headway 3 Manual Resist Spinner headway3	Resist Coat (manual) Headway 3 Training	All	SNF Exfab Paul G Allen 104 Stinson
Finetech Lambda flipchipbonder	Flip Chip Bonder Training	Flexible	SNF Exfab Paul G Allen 104 Stinson
Ex Fab Develop Wet Bench wbexfab_dev	WbExfab_Dev Training	Flexible	SNF Exfab Paul G Allen 104 Stinson	Manual development of resist in beakers. SNF approved developers only. No solvents!
Ex Fab Solvent Wet Bench wbexfab_solv	WbExfab_Solv Training	Flexible	SNF Exfab Paul G Allen 104 Stinson
Nanospec 210XP nanospec2	Nanospec Training	All	SNF Exfab Paul G Allen 104 Stinson	Manual Film Thickness Measurement. Single or dual layer transparent films > 300 Ã
Profilometer Alphastep 500 alphastep	Alphastep 500 Profilometer Training	Flexible	SNF Exfab Paul G Allen 104 Stinson	500Å to 300µm

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Equipment name & NEMO ID	Technique	Cleanliness	Primary Materials Etched	Other Materials Etched	Developer	Process Temperature Range	Chemicals	Gases	Substrate Size	Substrate Type	Maximum Load
Wet Bench Clean 1 wbclean-1	Cleaning > Pre-Diffusion Clean Cleaning > Pre-Diffusion Clean > Pre-LPCVD or Pre-Metal Clean	Clean					50:1 HF SC1 SC2		3" 4" 6"	(Si) , (SiGe) , (SiO2)	25
Wet Bench Clean 2 wbclean-2	Cleaning > Pre-Diffusion Clean Cleaning > Pre-Diffusion Clean > Pre-LPCVD or Pre-Metal Clean	Clean					50:1 HF 6:1 BOE SC1 SC2		3" 4" 6"	(Si) , (SiGe) , (SiO2)	25
Wet Bench Clean_res- hotphos wbclean_res-hotphos	Etching > Wet Etching > Silicon Nitride Wet Etching	Clean	Si3N4				H₃PO₄		3" 4" 6"	(Si) , (SiGe) , (SiO2)
Wet Bench Clean_res-hf wbclean_res-hf	Etching > Wet Etching > Silicon Oxide Wet Etching	Clean	SiO₂				20:1 BOE 50:1 HF 6:1 BOE		3" 4" 6"	(Si) , (SiGe) , (SiO2)
Wet Bench Clean_res-piranha wbclean_res-piranha	Cleaning > Piranha Cleaning Cleaning > Resist Removal > Wet Resist Removal	Clean					9:1 Piranha		3" 4" 6"	(Si) , (SiGe) , (SiO2)
Wet Bench CMOS Metal wbclean3	Etching > Wet Etching > Aluminum and Titanium and Tungsten Wet Etching	Semiclean	Al Ti W				20:1 BOE 50:1 HF 6:1 BOE Al-Etch Ti-Etch W-etch		3" 4" 6"	(Si) , (SiGe) , (SiO2)	25 wafers
Wet Bench Decontamination wbdecon	Cleaning > Decontamination	Clean					SC2		3" 4" 6"	(Si) , (SiGe) , (SiO2)
Wet Bench Flexcorr 1 wbflexcorr-1	Etching > Wet Etching > Acid or Base Wet Etching Etching > Wet Etching > Aluminum and Titanium and Tungsten Wet Etching Cleaning > Decontamination Cleaning > Metal Clean Cleaning > Piranha Cleaning Etching > Wet Etching > Silicon Oxide Wet Etching Etching > Wet Etching > Silicon Wet Etching Cleaning > Resist Removal > Wet Resist Removal	Flexible	Metals Al Au Cr Si SiO₂ Resist	GaAs Si3N4 Ti W			Acids Bases Gold Etchant H₃PO₄ 20:1 BOE 50:1 HF 6:1 BOE 9:1 Piranha Al-Etch Chrome Etch KOH SC1 SC2		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)
Wet Bench Flexcorr 2 wbflexcorr-2	Etching > Wet Etching > Acid or Base Wet Etching Cleaning > Piranha Cleaning	Flexible					Acids Bases		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)
Wet Bench Flexcorr 3 wbflexcorr-3	Etching > Wet Etching > Acid or Base Wet Etching Cleaning > Piranha Cleaning	Flexible					Acids Bases		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (Various)
Wet Bench Flexcorr 4 wbflexcorr-4	Etching > Wet Etching > Acid or Base Wet Etching Cleaning > Piranha Cleaning	Flexible					Acids Bases		Pieces 2" 3" 4" 6"
Wet Bench Flexible Solvents wbflexsolv	Patterning > Metal Lift-off Cleaning > Solvent Cleaning Cleaning > Resist Removal > Wet Resist Removal	Flexible					Solvents		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)
Wet Bench Flexible Solvents 1 wbflexsolv-1	Cleaning > Solvent Cleaning Cleaning > Resist Removal > Wet Resist Removal	Flexible					Solvents		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)
Wet Bench Flexible Solvents 2 wbflexsolv-2	Cleaning > Solvent Cleaning Cleaning > Resist Removal > Wet Resist Removal	Flexible					Solvents		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)
Wet Bench Miscellaneous wbmiscres	Photolithography > Resist Develop > Resist Develop (manual)	Flexible			AZ 1:1		Developers		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Wet Bench Resist Strip wbresstrip-1	Cleaning > Resist Removal > Wet Resist Removal	Clean (Ge), Semiclean, Flexible	Resist			20 °C - 60 °C	PRS-1000 SRS-100		Pieces 2" 3" 4"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC)	25 4 inch wafers
Wet Bench Solvent Lithography lithosolv	Cleaning > Solvent Cleaning	Flexible					Solvents		Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Woollam woollam	Characterization > Ellipsometry	All							Pieces 2" 3" 4" 6" 8"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various) , (Various) , (LiNb) , (Various)	1
Xactix Xenon Difluoride Etcher xactix	Etching > Vapor Etching	All	Ge Si SiGe					N₂ XeF₂	Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)	1

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