Abstract:
According to an embodiment, in the present invention, provided is a monomer for a hardmask composition, which secures gap-fill and flatness properties while having etch resistance. The present invention relates to a monomer for a hardmask composition denoted by chemical formula 1, a hardmask composition including the monomer, and a forming method of patterns using the same. In chemical formula 1, A, A′, A″, L, L′, X, X′, m and n are described as defined in the specification.
Abstract:
Provided is a hard mask composition which includes an aromatic ring-containing compound and a solvent including a structure unit represented by chemical formula 1. [Chemical formula 1] In chemical formula 1, L, X and n are defined as in the specification. In addition, a method for forming patterns using the hard mask composition and a semiconductor integrated circuit device including multiple patterns formed by the method are provided.
Abstract:
Provided is a method for forming a dual damascene structure of a semiconductor element which is as follows: (a) first and second insulation layers are sequentially formed on a substrate; (b) a resist mask with a pattern for forming a via-hole is formed on the second insulation layer; (c) a via-hole is formed to a bottom of the first insulation layer; (d) a hard mask layer is formed on the via-hole and the second insulation layer by using a spin-on-coating method; (e) a resist mask with a pattern for forming a trench hole is formed on the hard mask layer; (f) a first trench hole is formed to a bottom of the second insulation layer through the resist mask; (g) each of portions of a hard mask layer, which are formed on the via-hole and the second insulation layer, are removed; (h) a portion of the second insulation layer between a top corner of the via-hole (via top corner) and a bottom corner of the first trench hole (trench bottom corner) is removed to form a second trench hole; (i) a remaining hard mask layer, which is formed on the via-hole and the second insulation layer, is removed; and (j) the via-hole and the second trench hole are buried with a conductive material, such that an upper interconnection is formed.