| abstract |
A polymer formed by the polycondensation reaction of the monomer, an organic film composition comprising the monomer and / or polymer, and a pattern forming method using the organic film composition. [Chemical Formula 1] In Formula 1, A and A 'are each independently a group represented by the following formula (2) B is a substituted or unsubstituted C6 to C30 aromatic ring: (2) In the above formula (2), the definitions of Ar, Z 1 , Z 2 , X and X 'are as described in the specification. |