Novel Spin on Planarization Technology by Photo Curing SOC (P-SOC)

In advanced lithography technology, high planarity SOC (Spin-on-Carbon) materials which can planarize topography substrates are required in order to obtain enough process margin. We developed photo curing SOC (P-SOC) materials which can be cross-link by short wavelength UV light, but not thermal process. The P-SOC can achieve high planarization and good via filling because they have high reflow performance without viscosity increasing by baking process and almost no film shrinkage during the baking and photo curing process. The novel P-SOC materials are suitable for very fine pattern manufacturing process as N5 generation which is needed planarization technology.