Photoresist Chemistry Simulation

PAG diffusion, acid catalysis, dissolution kinetics with Dill ABC parameters

85%
PAG Conversion
15 nm
Acid Diffusion
0.65
Dill A Parameter
120 nm/s
Dev Rate

Chemistry Parameters

1%5%
515
90115
3060
0.30.65
0.010.05
0.0010.008
0.150.26
Dill Model: I(z,t) = I₀·exp(-∫A(z',t)dz')
A(z,t) = A + B·M(z,t), dM/dt = -C·I(z,t)·M(z,t)
Acid Diffusion: ∂[H⁺]/∂t = D·∇²[H⁺] + k·[PAG*]
Development Rate: R = Rmax·(1-exp(-k·[H⁺]))

Resist Profile Evolution

PAG Conversion vs Depth

Acid Concentration

Development Rate

Absorption vs Time

3D Resist Surface

Contrast Curve