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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
Lesker2 Sputter lesker2-sputter	Sputter Lesker 1&2 Training	Semiclean	SNF Paul G Allen L107 Cleanroom	reactive O2/N2 sputtering, substrate bias, substrate heating, co-sputter
Tystar Bank 2 Tube 8 LTO B2T8 Clean LTO	Tystar LPCVD Tube Training	Clean	SNF Paul G Allen L107 Cleanroom
Wet Bench Clean_res- hotphos wbclean_res-hotphos	Wet Bench Clean Piranha/HF/Phosphoric Training	Clean	SNF Paul G Allen L107 Cleanroom	Resist should have been removed
Wet Bench Clean 1 wbclean-1	Wet Bench Clean1and2 Training	Clean	SNF Paul G Allen L107 Cleanroom	No resist allowed. Resist should have been removed at the wbclean_res-piranha.
Oven (White) white-oven	White Oven Training	Flexible	SNF Paul G Allen L107 Cleanroom	For LOL2000 bake or bakes which are not allowed in the other ovens and need higher temperatures, up to 200C, programmable.
AJA2 Evaporator aja2-evap	Evaporator AJA2 Training	Flexible	SNF Paul G Allen L107 Cleanroom	For more than 300nm deposition, please contact Gabe Catalano <gcatalano@stanford.edu> in advance
CHA Solutions II Evaporator cha-evap	Evaporator CHA Training	Flexible	SNF Paul G Allen L107 Cleanroom	For more than 300nm deposition, please contact Neel Mehta <nmehta26@stanford.edu> in advance
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.
MRC Reactive Ion Etcher mrc	MRC Reactive Ion Etcher Training	Flexible	SNF Paul G Allen L107 Cleanroom	Typically used for sputter etching; Single wafer, direct load system; wafers/ pieces can be directly placed on electrode
Oven BlueM 200°C to 430°C bluem	Blue M Oven Training	Flexible	SNF Paul G Allen L107 Cleanroom	Convection in N2. Cure. Programmable.
Intlvac Evaporator Intlvac_evap	Evaporator Intlvac Training	Clean, Semiclean	SNF Paul G Allen L107 Cleanroom
Wet Bench Flexcorr 2 wbflexcorr-2	Wet Bench Flexcorr 1and2 and 3and4 Training	Flexible	SNF Paul G Allen L107 Cleanroom	Manual wet etching of non-standard materials. Hot pots available. GaAs allowed in personal labware only
Gasonics Aura Asher gasonics	Resist Removal Dry Gasonics Training	Clean, Semiclean	SNF Paul G Allen L107 Cleanroom	Single wafer tool with auto loading from a cassette. Pieces need a pocket carrier wafer for transport. Wafers heated by lamps.
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.
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.
Fiji 2 ALD fiji2	ALD Fiji 1 and 2 Training	Flexible	SNF Paul G Allen L107 Cleanroom
Wet Bench CMOS Metal wbclean3	Wet Bench CMOS Metal (wbclean3) Training	Semiclean	SNF Paul G Allen L107 Cleanroom	Al, Ti, or W wet etching or oxide etching
Plasma Therm Versaline LL ICP Metal Etcher PT-MTL	Plasma Therm Versaline LL ICP Metal Etcher Training	Flexible	SNF Paul G Allen L107 Cleanroom	Single wafer; Default 4" config; Can be converted to 6" config; pieces need to be attached to carrier wafer; Restrictions: Can not etch metals or metal oxides with no volatile by-products (shorting & arcing issues)
Oven 90°C prebake oven90	Resist Prebake Oven 90°C Training	All	SNF Paul G Allen L107 Cleanroom	Bakes wafers after resist coating.
Wet Bench Clean 2 wbclean-2	Wet Bench Clean1and2 Training	Clean	SNF Paul G Allen L107 Cleanroom	No resist allowed. Resist should have been removed at the wbclean_res-piranha

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Equipment name & NEMO ID	Technique	Cleanliness	Primary Materials Etched	Other Materials Etched	Material Thickness Range	Materials Lab Supplied	Materials User Supplied	Minimum Resolution	Exposure Wavelength	Mask Size	Max Exposure Area	Resist	Process Temperature Range	Chemicals	Gases	Sample Size Limits	Resolution Notes	Substrate Size	Substrate Type	Maximum Load
Headway 3 Manual Resist Spinner headway3	Photolithography > Resist coat > Resist Coat (manual)	All										Resists Shipley 3612 resist SPR220-3 resist SPR220-7						Pieces 2" 3" 4"		1 piece or wafer
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)
Intlvac Evaporator Intlvac_evap	Deposition > Physical Vapor Deposition (PVD) > Evaporation	Clean, Semiclean			0.00 - 0.50 μm	Al Co Cr Ge Hf Nb Ni Pd Si Ta Ti V W Zr Moly												Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2)	12 4 inch wafers, 2 6 inch wafers
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)
KJL Evaporator 1	Deposition > Physical Vapor Deposition (PVD) > Evaporation				200.00 nm	Al Au Cr Cu Ge Ni Pd Pt Ti V									Ar			Pieces 2" 3" 4" 6"		1
Lam Research TCP 9400 Poly Etcher lampoly	Etching > Dry Etching > Inductively Coupled Plasma Etching (ICP)	Clean, Semiclean	Si	Ge SiGe											80% He/ 20%O₂ C₂F₆ CF₄ Cl₂ HBr He N₂ O₂			4"	(Si) , (SiGe)	25
Laurell Manual Resist Spinner laurell-R	Photolithography > Resist coat > Resist Coat (manual)	All										Resists SU-8 LOL		(C₅O₂H₈)_n				Pieces 2" 3" 4" 6"
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
Matrix Plasma Resist Strip matrix	Etching > Dry Etching > Downstream/Remote Plasma Etching Cleaning > Resist Removal > Dry Resist Removal > Downstream/Remote Plasma Resist Removal	Flexible	Resist	PI											O₂			4"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂)	25
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
MRC Reactive Ion Etcher mrc	Etching > Dry Etching > Capacitively Coupled Plasma Etching (CCP) > Reactive Ion Etching (RIE)	Flexible	Metal oxides Metals Metals or metal compounds with volatile byproducts Metals or metal compounds without volatile byproducts Au Ni poly(p-xylylene) Pt Si Si3N4 SiO₂ Ti Various 2D Materials Various Dielectrics Various polymers PI Resist	Al AlAs AlGaAs AlGaN AlInP AlN AlSi BiFeO₃ C C C Co CoFeB Cr Cu Er Fe Ga₂O₃ GaAs GaN GaP GaPN Ge Hf HfN III-N materials III-V materials In In₂O₃ InAlN InAs InGaAlN InGaAs InGaAsN InGaN InGaP InN InP InPN InSb Ir LaB₆ LiNb Nb Ni_xO_y NiSi Pd Ru Sc SiC SiGe SiO SiON Sn SnO₂ SrO SrRuO Ta Ta₂O₅ TaN TiN V Various C-based Various polymers W WO₃ WSi₂ Y ZnO₃ Zr ZrY Alumina AZO Hafnia ITO LLZO Moly Moly Oxide Poly Silicon Ti Tungsten Titania YSZ Zirconia											Ar CHClF₂ CHF₃ O₂ SF₆			Pieces 2" 3" 4" 6"		1
MVD mvd	Deposition > Atomic Layer Deposition (ALD) > Thermal ALD	Flexible			1.00 Å - 50.00 nm	C₉H₂₃NO₃Si Various Dielectrics Alumina DETA Hafnia ODS SAMS							24 °C - 150 °C		Ar			Pieces 2" 3" 4" 6" 8"
Nanospec 210XP nanospec2	Characterization > Reflectometry	All																Pieces 2" 3" 4" 6"	(Si) , (SiGe) , (SiO2) , (Al₂O₃) , (SiO₂) , (Ge) , (GaN) , (III-V) , (GaAs)

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