Doses

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125 kV
Si InAsUC InPUC GaAsUC SiGe
A2 1000 700 ? ? ?
A4 1000 700 ? 630 ?
A6 1200 ? ? 760 ?
El6 ? ? ? ? ?
El9 ? ? ? 420 ?
CSAR4 430 ? ? ? ?
CSAR9 ? ? ? ? ?
CSAR13 450 ? ? 350 ?
50k+A4 ? ? ? 745 ?
100 kV
Si InAsUC InPUC GaAsUC SiGe
A2 900 ? 300 ? ?
A4 900 ? 500 630 ?
A6 1000 ? ? 670 ?
El6 ? ? ? ? ?
El9 ? ? ? ? ?
CSAR4 400 ? ? ? ?
CSAR9 ? ? ? ? ?
CSAR13 ? ? ? ? ?
50k+A4 ? ? ? 630 ?
  • GaAs: Uniform clearing
  • InP: Uniform clearing
  • InAs: Uniform clearing
  • Si: Optimal contrast

Note

Base dose does not change with resist thickness, developing time does. However, if the developing time is fixed, say to 60s, a thinner layer of resist will need lower "base dose", since it's being over developed.

Experimental

125 kV:

InP: 607 uC/cm2 and phi = 35%

InAs:

Si: 906 uC/cm2 and phi = 45%

GaAs:752 uC/cm2 and phi = 39%


125 kV
Si (μC/cm2) / φ InAs (μC/cm2) / φ InP (μC/cm2) / φ GaAs (μC/cm2) / φ SiGe (μC/cm2) / φ
A2 ? ? ? ? ?
A4 906/ 45% ? 607/ 35% 752/ 39% ?
A6 ? ? ? ? ?
El6 ? ? ? ? ?
El9 ? ? ? ? ?
CSAR4 ? ? ? ? ?
CSAR9 ? ? ? ? ?
CSAR13 ? ? ? ? ?
50k+A4 ? ? ? ? ?