Gallium Arsenide

Chemical Formula:

GaAs

Equipment name & NEMO ID	Training Required & Charges	Cleanliness	Location	Notes
Aixtron MOCVD - III-V system aix200	MOCVD - III-V Aixtron training	Flexible	SNF MOCVD Paul G Allen 213XA	N and P doping available. For Si clean: SC1, SC2, HF dip. For III-V clean: HCl or HF dip.
Oven 90°C prebake oven90	Resist Prebake Oven 90°C Training	"All"	SNF Paul G Allen L107 Cleanroom	Bakes wafers after resist coating.
Oven 110°C post-bake oven110	Resist Postbake Oven 110°C Training	"All"	SNF Paul G Allen L107 Cleanroom	Bakes wafers with resist after the development, called post-bake.
Profilometer Alphastep 500 alphastep	Alphastep 500 Profilometer Training	Flexible	SNF Exfab Paul G Allen 104 Stinson	500Å to 300µm
Oven BlueM 200°C to 430°C bluem	Blue M Oven Training	Flexible	SNF Paul G Allen L107 Cleanroom	Convection in N2. Cure. Programmable.
Critical Point Dryer Tousimis Automegasamdri-936 cpd	Critical Point Dryer Training	Flexible	SNF Paul G Allen L107 Cleanroom	CO2 drying after release of micromachined devices
Headway Manual Resist Spinner headway2	Resist Coat (manual) Headway Manual Training	"All"	SNF Paul G Allen L107 Cleanroom	Adjustable spin speeds, spin time. SNF-acceptable resists or polymers. Ebeam resists
Woollam woollam	Woollam Training	"All"	SNF Paul G Allen L107 Cleanroom
Karl Suss MA-6 Contact Aligner karlsuss2	Contact Aligner Karl Suss MA-6 Training	"All"	SNF Paul G Allen L107 Cleanroom	1:1 Contact Aligner. Backside align.
Karl Suss MA-6 Contact Aligner karlsuss	Contact Aligner Karl Suss MA-6 Training	"All"	SNF Paul G Allen L107 Cleanroom	1:1 Contact Aligner. Backside align, including IR.
Wet Bench Solvent Lithography lithosolv	Lithography Solvent Bench Training	Flexible	SNF Paul G Allen L107 Cleanroom	Manual solvent cleaning of substrates or masks. Teflon coated metal tweezers cleaning.
micromanipulator6000 IV-CV probe station micromanipulator6000	micromanipulator6000 IV-CV probe station Training	"All"	SNF Exfab Paul G Allen 151 Ocean
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
Prometrix Resistivity Mapping System prometrix	Prometrix Training	"All"	SNF Paul G Allen L107 Cleanroom	3 Probe Heads for different cleanliness groups.
SPTS uetch vapor etch uetch	SPTS uetch vapor etch Training	"All"	SNF Paul G Allen L107 Cleanroom	Pieces need a carrier wafer; Isotropic Etching
SVG Resist Coat Track 1 svgcoat	SVG Resist Coat Tracks 1 and 2 Training	"All"	SNF Paul G Allen L107 Cleanroom	Automatic Resist spinning and bake
SVG Resist Coat Track 2 svgcoat2	SVG Resist Coat Tracks 1 and 2 Training	"All"	SNF Paul G Allen L107 Cleanroom	Automatic HMDS, Resist spinning, and Bake. AZ5214IR Image Reversal.
SVG Develop Track 1 svgdev	SVG Resist Develop tracks 1 and 2 Training	"All"	SNF Paul G Allen L107 Cleanroom	Automatic development.
SVG Develop Track 2 svgdev2	SVG Resist Develop tracks 1 and 2 Training	"All"	SNF Paul G Allen L107 Cleanroom	Automatic development.
Wet Bench Flexcorr 1 wbflexcorr-1	Wet Bench Flexcorr 1and2 and 3and4 Training	Flexible	SNF Paul G Allen L107 Cleanroom	Manual wet etching of non-standard materials. Hot plate available. GaAs allowed in personal labware only.

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Equipment name & NEMO ID	Technique	Cleaning Required	Cleanliness	Material Thickness Range	Materials Lab Supplied	Materials User Supplied	Exposure Wavelength	Mask Size	Max Exposure Area	Resist	Process Temperature Range	Chemicals	Gases	Sample Size Limits	Resolution Notes	Substrate Size	Substrate Type	Maximum Load
Aixtron MOCVD - III-V system aix200	Deposition > Chemical Vapor Deposition (CVD) > Metal-Organic (MO) CVD	Pre-Diffusion Clean	Flexible	0.00 - 5.00 μm	AlAs AlGaAs GaAs GaP GaPN III-V materials InAs InGaAs InGaAsN						300 °C - 800 °C		H₂ MO sources N₂ SiH₄			Pieces 2" 4"	(Si) , (SiO2) , (Al₂O₃) , (GaN) , (III-V) , (GaAs)	4"x1 wafer or 2"x1 wafer or 4 pieces
AJA Evaporator aja-evap	Deposition > Physical Vapor Deposition (PVD) > Evaporation		Flexible	0.00 - 300.00 nm	Ag Al Au Co Cr Cu Fe Ge Hf Ni Ni_xO_y Pd Pt SiO₂ Ti Titania											Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various) , (Various)	4"x3 or 6"x1 wafers or pieces
Critical Point Dryer Tousimis Automegasamdri-936 cpd	Drying > CO2 Drying Wet Chemical Processing		Flexible									CO₂				Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)
Flexus 2320 Stress Tester stresstest	Characterization > Film Stress Measurement		"All"													3" 4" 6" 8"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)	1
Headway Manual Resist Spinner headway2	Photolithography > Resist coat > Resist Coat (manual)		"All"							AZ5214IR Shipley 3612 resist SPR 955 CM-.7 resist SPR220-3 resist SPR220-7 (C₅O₂H₈)_n						Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)	one piece or wafer
Heidelberg MLA 150 heidelberg	Photolithography > Exposure > Direct Write		"All"				405 nm									Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various) , (Various) , (LiNb)	1
Heidelberg MLA 150 - 2 heidelberg2	Photolithography > Exposure > Direct Write		"All"				375 nm									Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various) , (Various) , (LiNb)	1
HMDS Vapor Prime Oven, YES yes	Photolithography > Wafer preparation before resist > Singe Photolithography > Wafer preparation before resist > Wafer Prime (HMDS)		"All"								150 ºC	[(CH₃)₃Si]₂NH				Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Karl Suss MA-6 Contact Aligner karlsuss	Photolithography > Exposure > Contact Aligner		"All"				365 nm	4 inch, 5 inch, 7 inch	5 inch mask = 4 inch, 7 inch mask = 6 inch, 4 inch mask = 3 inch							Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs) , (Various)
Karl Suss MA-6 Contact Aligner karlsuss2	Photolithography > Exposure > Contact Aligner		"All"				365 nm or 405 nm	4 inch, 5 inch, 7 inch	5 inch mask = 4 inch, 7 inch mask = 6 inch, 4 inch mask = 3 inch							Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs) , (Various)
Keyence Digital Microscope VHX-6000 keyence	Characterization > Surface Analysis > Microscopy		"All"													Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Lakeshore Hall Measurement System LakeshoreHall	Characterization > Hall measurement Characterization > Sheet Resistance Measurement		"All"	100.00 μm - 1000.00 μm							-258 °C - 1000 °C			8 in wafer	Sensor Transducer Size is 14 mm diameter	Pieces	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various)	1 piece
LEI1500 Contactless Sheet Resistance Mapping eddycurrent	Characterization > Sheet Resistance Measurement		"All"											8 in wafer	Sensor Transducer Size is 14 mm diameter	2" 3" 4" 6" 8"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (Various) , (Various)	1 wafer(2" to 8")
Lesker Sputter lesker-sputter	Deposition > Physical Vapor Deposition (PVD) > Sputtering		Flexible		Ag Al AlSi Au Co Cr Cu Fe Nb Ni Pd Si SiO₂ Ta Ti TiN W Alumina ITO	CoFeB Ge Hf In₂O₃ LaB₆ Ru Sc Sn TiN WO₃ ZnO₃ ZrY GST Hafnia Moly Ti Tungsten										Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)	1 4 inch wafer, 1 6 inch wafer
Lesker2 Sputter lesker2-sputter	Deposition > Physical Vapor Deposition (PVD) > Sputtering		Semiclean	1.00 μm	Ag Al AlSi Cr Ge Pd Ru Sc Si SiO₂ Sn Ta Ti TiN W Alumina ITO Moly						°C - 800 °C		Ar N₂ O₂			Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)	one 4 inch wafer, one 6 inch wafer
micromanipulator6000 IV-CV probe station micromanipulator6000	Characterization		"All"													Pieces 2" 3" 4"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs) , (LiNb) , (Various)	1x4" wafer
Nanospec 210XP nanospec2	Characterization > Reflectometry		"All"													Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Oven (White) white-oven	Photolithography > Resist Bake > Oven Bake		Flexible								0 °C - 200 °C					Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)
Oven 110°C post-bake oven110	Photolithography > Resist Bake > Oven Bake > Resist Post Bake		"All"								110 ºC					Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (SiC) , (GaN) , (III-V) , (GaAs)
Oven 90°C prebake oven90	Photolithography > Resist Bake > Oven Bake > Resist Prebake		"All"								90 ºC					Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)