50nm Metal Lift-Off Lines (AuPd on Si)

 

 

 

 

 

 

EBL100 Settings:

 

EHT: 80kV

Beam Current: 10 pA

VRU: 4

Dose Range: 1500 uC/cm2 – 1800 uC/cm2

 

Designed line width (L-Edit): 20 nm

Obtained line width (SEM): 50 nm

Field Size = 102.4 um

 

Resist: Microchem PMMA C2 (80 nm)

 

Substrate: Silicon

Metal: AuPd (20nm thickness)

 

Comments: PMMA C2: Coating 6000rpm 60 secs, Bake 180C 15mins. Develop: 1MIBK : 3 IPA, 35 secs. Overnight lift-off with sample in Acetone at room temperature.