Specific Process Knowledge/Lithography/Coaters

Coaters: Comparison Table

Equipment		SSE Spinner	KS Spinner	Spin Track 1 + 2	Manual Spinner (Polymers)	Manual Spinner 1	Spin coater: Manual labspin	Spray Coater
Purpose		Coating and baking of AZ5214E resist AZ4562 resist E-beam resist	Coating and baking of AZ5214E resist AZ4562 resist SU8 resist	In-line substrate HMDS priming Coating and baking of AZ MiR 701 (29cps) resist AZ nLOF 2020 resist Post-exposure baking at 110°C	Coating of all resists	Coating of all resist	Coating of UV sensetive resist E-beam resist	Spraying imprint resist Spraying photoresist Spraying of other solutions
Performance	Substrate handling	Cassette-to-cassette Edge handling chuck	Single substrate Non-vacuum chuck for fragile substrates	Cassette-to-cassette	Single substrate			Can handle almost any sample size and shape
	Permanent media	AZ5214E resist AZ4562 resist Acetone for chuck cleaning Acetone for drip pan	AZ5214E resist PGMEA for edge bead removal Acetone for chuck cleaning	AZ MiR 701 (29cps) resist AZ nLOF 2020 resist PGMEA for backside rinse and edge-bead removal PGMEA for spinner bowl cleaning and vapor tip bath	Only manual dispense			No permanent media
	Manual dispense option	2 automatic syringes	yes pneumatic dispense for SU8 resist	no				Two syringe pumps
Process parameter range	Spindle speed	100 - 5000 rpm	100-5000 rpm	10 - 9990 rpm	100 - 5000 rpm	100 - 5000 rpm	100 - 7000 rpm
	Gyrset	optional	optional (max. speed 3000rpm)	no	optional	no	no
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers	100 mm wafer 150 mm wafer	100 mm wafers 150 mm wafers (tool change required)	50 mm wafers 100 mm wafers 150 mm wafers	50 mm wafers 100 mm wafers 150 mm wafer small pieces down to 10x10 mm2	50 mm wafers 100 mm wafers 150 mm wafer small pieces down to 3x3 mm2	Any sample(s) that fit inside machine
	Batch size	1-24	1	1-25	1	1	1	1
	Allowed materials	All cleanroom materials except III-V materials	All cleanroom materials except III-V materials	Silicon Glass	All cleanroom materials	All cleanroom materials	III-V materials Si, SiO2, SOI	All chemicals to be spray coated must be approved specifically for spray coating Any non-toxic, non-particulate and non-crosslinking material is likely to be approved

SSE Spinner

The SSE spinner MAXIMUS: positioned in E-5

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SSE Spinner, Maximus 804, SSE Sister Semiconductor Equipment is a resist spinning system at Danchip which can be used for spinning on 2", 4" and 6" substrates.

The system is equipped with 2 different resists lines:

• AZ 5214E
• AZ 4562

and

• 2 syringe lines, which can be used for spinning of e-beam resist.

The user manual, user APV, and contact information can be found in LabManager

Process information

The typical flow for resist spinning is divided in 3 steps: video, spinning and soft bake. You need to create a separate recipe for each station and then collect the recipes in a flow. For the video station we have 3 standard recipes for 3 different wafer sizes: 2inch, 4inch, 6inch. To create a recipe for the coater station you need to describe spinning sequence using the predefined functions. Then you create recipe for the hotplates. After all recipes are created they can be set together in the different flows. It is why we are not recommending the user just change some parameters in the recipe, this change can effect some other flows.

• General SSE spinner process information
• AZ5214E coating on SSE Spinner

Flow names, process parameters, and test results:

• DCH 100mm 1,5µm AZ5214E

Spin-off: xx s at yyyy rpm.

Substrate	Thickness	Uniformity (+/-)	Test date	Tester initials	Comments
Silicon with native oxide	1,446	5,5%	17/02 2015	chasil	with HMDS. Average of 3 wafers
Silicon with native oxide	1,415	3,7%	1/4 2015	chasil	with HMDS. Average of 3 wafers

Equipment performance and process related parameters

Purpose		Spin coating and soft baking UV sensative resists Spin coating and soft baking E-beam resists
Resist		AZ5214E AZ4562 E-beam resists
Performance	Coating thickness	AZ5214E 1-4,2 µm AZ4526 6,2-25 µm E-beam resits 0,1-1 µm
Process parameters	Spin speed	100 - 5000 rpm
	Spin acceleration	100 - 10000 rpm/s
	Hotplate temperature	90°C for softbaking of AZ5214E resist 100°C for softbaking of AZ4562 resist 110°C for reverse baking of AZ5214E resits 180°C for softbaking of e-beam resits
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers
	Allowed materials	All cleanroom materials except III-V materials
	Batch	1 - 24

Spin Track 1 + 2

Spin Track 1 + 2 in C-1

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Spin Track 1 + 2 is an SVG 88 series track system from Rite Track. Each track consists of a HMDS priming module, a spin coating module, and a baking module. In fact, the only difference between the two tracks is the resist used in the spin coating module. Spin Track 1 + 2 is capable of handling 150 mm wafers, as well as 100 mm wafers, but is currently set up for 100 mm wafer processing.

The Spin Track 1 + 2 is controlled using the Recipe Manager software via the touchscreen on the arm attached to the lefthand end of the track. Recipes for the individual modules are developed by Danchip and combined into flows. The user selects a flow (specific to track 1 or 2), and the appropriate recipes will be downloaded and executed on the appropriate track. The other track runs an empty process (no wafers needed), and can unfortunately not be used by a second user while the first user is processing.

The user manual, user APV, and contact information can be found in LabManager

Process information

• General Spin Track 1 + 2 process information
• HMDS priming on Spin Track 1 and 2
• AZ MiR 701 (29cps) coating on Spin Track 1
• AZ nLOF 2020 coating on Spin Track 2
• Post-exposure baking on Spin Track 2

Equipment performance and process related parameters

Spin Track		1	2
Purpose		HMDS priming Spin coating and soft baking Priming, coating, and baking	HMDS priming Spin coating and soft baking Priming, coating, and baking Post-exposure baking
Resist		AZ MiR 701 (29cps) positive tone	AZ nLOF 2020 negative tone
Performance	Coating thickness	1 - 3 µm	1 - 4 µm
	HMDS contact angle	60° - 90°; standard recipe 82° (on SiO2)
Process parameters	Spin speed	10 - 9990 rpm
	Spin acceleration	1000 - 50000 rpm/s
	Hotplate temperature	90°C	110°C
	HMDS priming temperature	50°C
Substrates	Substrate size	100 mm wafers
	Allowed materials	Silicon and glass wafers Film or pattern of all types
	Batch	1 - 25

KS Spinner

The KS spinner is placed in C-1

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At Danchip we have RC8-THP system which is one of the SUSS MicroTech spinners.

The main purpose of this equipment is experimental spinning the different resist.The spinner has one resist line, AZ5214E, for automatic dispense. All other resist dispenses manually from syringe or disposable pipettes. All SU8 spinning are done on this machine.

The machine can be also used for spinning on the "difficult" surfaces like the substrates with holes, backside structures and unusual shapes.

The user manual, user APV, and contact information can be found in LabManager

Equipment performance and process related parameters

Purpose		Spin coating and soft baking UV sensative resists Spin coating SU8 resists
Resist		AZ5214E permanent line AZ4562 manual dispense SU8 resists manual dispense
Performance	Coating thickness	AZ5214E 1-4,2 µm AZ4526 6,2-10 µm SU8 resits 0,1-100 µm
Process parameters	Spin speed	100 - 5000 rpm
	Spin acceleration	100 - 5000 rpm/s
	Hotplate temperature	changeable temperature from 20° to 200° SU8 must be bake out on SU8 dedicated hotplates
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers
	Allowed materials	All cleanroom materials except III-V materials
	Batch	1

Manual Spinner (Polymers)

The Manual Spinner (Polymers): positioned in fumehood in C-1

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Manual Spinner (Polymers), OPTIcoat SB20+, from ATMSSE is a resist spinning coater at Danchip which is dedicated for single wafers spinning of e-beam resist, the hot embossing/UV imprint polymers and SU8 resit mixed with color/nano particals.

All polymers must be validated manually during the use. On this spinner you can spin whole 2", 4" and 6" substrates and also a small pieces.

The user manual, user APV, and contact information can be found in LabManager

Equipment performance and process related parameters

Purpose		Spin coating of hot embossing polymers Spin coating of UV imprinting polymers Spin coating of e-beam resists Spin coating of SU8 resists mixed with color/nano particles
Resist		PMMA Topas e-beam resits SU8 resists mixed with color/nano particles
Performance	Coating thickness	resist depended
Process parameters	Spin speed	100 - 5000 rpm
	Spin acceleration	100 - 5000 rpm/s
	Hotplate temperature	changeable temperature from 20° to 200°
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers down to 10x10mm pieces
	Allowed materials	All cleanroom materials except III-V materials
	Batch	1

Manual Spinner 1

The Manual Spinner 1: positioned in fumehood in E-5

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Manual Spinner 1, WS-650 model, from Laurell is a resist spinning coater at Danchip which can be used for spinning on whole 2", 4" and 6" substrates and also a small pieces.

The system can be used for spinning all resists, but remember to clean the spinner with an appropriate solvents, which can remove the resist residues.

The user manual, user APV, and contact information can be found in LabManager

Equipment performance and process related parameters

Purpose		Spin coating all resists
Resist		all approved resists
Performance	Coating thickness	resist depended
Process parameters	Spin speed	100 - 5000 rpm
	Spin acceleration	100 - 5000 rpm/s
	Hotplate temperature	changeable temperature from 20° to 200°
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers down to 10x10mm pieces
	Allowed materials	All cleanroom materials
	Batch	1

Spin coater: Manual Labspin

Spin coater: Manual Labspin positioned in A-5

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The Spin coater: Manual Labspin is a SÜSS Labspin6 coater intended for processing of III-V compound semiconductors and CMOS compatible materals. The spinner is mounted in a flow hood located in the A-5 room (yellow room). The extra exhaust should always be turned on while spinning.

Please note, that there are different spinnings bowls for different resist, the first step before processing is choosing the proper bowl to use.

The user manual, user APV, and contact information can be found in LabManager

Process information

Positive tone resists:

AZ 5214E

Spinning curve for AZ5214E‎. Process parameters making the recipe: Spinning speed: xxxprm acceleration: 1000rpm/s time: 60s Baking 60sec on 90C hot plate

ZEP520A

Spinning curve for ZEP520A‎. Process parameters making the recipe: Spinning speed: xxxprm acceleration: 1000rpm/s time: 60s Baking 120sec on 180C hot plate

Negative tone resists

AZ nLoF 2020

Spinning curve for AZ nLoF 2020. Process parameters making the recipe: Spinning speed: xxxprm acceleration: 1000rpm/s time: 30s Baking 60sec on 110C hot plate

HSQ: FOX-15

Spinning curve for FOX-15. Process parameters making the recipe: Prebaking 300sec on 220C hot plate Spinning speed: xxxprm acceleration: 4000rpm/s time: 60s Baking 120sec on 120C hot plate 120sec on 220C hot plate. (Spinning curve made by Alexandra Lupi <allu@fotonik.dtu.dk>)

Equipment performance and process related parameters

Purpose		Spin coating UV sensative resists Spin coating E-beam resits
Resist		UV sensative resist: AZ5214E, AZMiR701, AZ nLoF 2020 E-beam resits: ZEP520A, PMMA, HSQ BCB (bisbenzocyclobutene) Diblock copolymer Poly(styrene-b-methyl methacrylate) P(S-b-PMMA)
Performance	Coating thickness	Resist depended see spinning curves for differnt resist
Process parameters	Spin speed	Max. speed: 8000 rpm
	Spin acceleration	100 - 5000 rpm/s
	Hotplate temperature	changeable temperature from 20°-200° for III-V materials changeable temperature from 20°-200° for other materials
Substrates	Substrate size	50 mm wafers 100 mm wafers 150 mm wafers small pieces down to 3x3 mm2
	Allowed materials	All cleanroom materials
	Batch	1