Patent Document ID: 8428762
Application ID: 12855124
Patent Flag: 1

Claim One:
1. A method for setting processing parameters for fabricating an integrated circuit, the method comprising the steps of: creating a mathematical model of a spin coated surface of a material over a non-flat substrate surface, where the mathematical model includes, a smoothing algorithm, where the smoothing algorithm uses a inputs only, a nominal thickness of the spin coated surface, a minimum thickness of the spin coated surface, and an interaction length, and a constraint that the spin coated surface cannot intersect the substrate surface, solving the mathematical model to determine the spin coated surface, and using the modeled spin coated surface to set the processing parameters for fabricating the integrated circuit, wherein the smoothing algorithm is given by, ∂ H ⁡ ( x , y ) ∂ t = D ⁡ ( ∂ 2 ⁢ H ⁡ ( x , y ) ∂ x 2 + ∂ 2 ⁢ H ⁡ ( x , y ) ∂ y 2 ) , where t is time, H(x,y) is the substrate surface plus the nominal thickness, and D is diffusion coefficient.