Revision as of 14:12, 18 November 2014

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Comparing lithography methods at DTU Danchip

	UV Lithography	DUV Stepper Lithography	E-beam Lithography	Nano Imprint Lithography	2-Photon Polymerization Lithography
Generel description	Pattern transfer via UltraViolet (UV) light	Pattern transfer via DeepUltraViolet (DUV) light	Direct writing via electron beam	Pattern transfer via hot embossing(HE)	Direct writing via IR laser
Pattern size range	~1µm and up	~200nm and up	~12nm - 1 µm	~20nm and up	3D voxel through transparent substrate: 0.3 µm diameter; 0.6 µm high 2D spot on opaque substrate: 0.6 µm diameter
Resist type	UV sensitive: AZ 5214E, AZ 4562, AZ MiR 701 (positive) AZ 5214E, AZ nLOF 2020, SU-8 (negative)	DUV sensitive JSR KRF M230Y, JSR KRF M35G (positive) UVN2300-0.8 (negative)	E-beam sensitive ZEP502A, CSAR , PMMA (positive) HSQ, Ma-N 2403, AR-N 7520 (negative)	Imprint polymers: Topas PMMA	UV sensitive: IP photoresists, SU-8 (3D) AZ resists (2D)
Resist thickness range	~0.5µm to 20µm	~50nm to 2µm	~30nm to 0.5 µm	~ 100nm to 2µm	droplet or coating
Typical exposure time	2s-30s pr. wafer	Process depended, depends on pattern, pattern area and dose	Depends on dose, Q [µC/cm2], beam current, I [A], and pattern area, A [cm2]: t = Q*A/I	Process depended, depends also on heating and cooling temperature rates	Process depended, depends on pattern and dose
Substrate size	small samples 50 mm wafers 100 mm wafers 150 mm wafers	100 mm wafers 150 mm wafers 200 mm wafers	We have cassettes that fit to 4 small samples (20mm, 12mm, 8mm, 4mm) 6 wafers of 50 mm in size 2 wafers of 100 mm in size 1 wafer of 150 mm in size Only one cassette can be loaded at time	small samples 50 mm wafers 100 mm wafers 150 mm wafers	Cover slides 50 mm wafers 100 mm wafers IBIDI
Allowed materials	Any standard cleanroom material	Any standard cleanroom material	Any standard cleanroom material	Any standard cleanroom material	Any standard cleanroom material

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Specific Process Knowledge/Lithography: Difference between revisions

Revision as of 14:12, 18 November 2014

Comparing lithography methods at DTU Danchip

Process Pages

UV Lithography

Deep UV Lithography

E-beam Lithography

Equipment Pages

UV Lithography

Pretreatment

Coaters

UV Exposure

Baking

Development

Strip

Lift-off

DUV Stepper Lithography

E-Beam Lithography

NanoImprint Lithography

3D Lithography