摘要:
The present invention provides photoresist monomers, photoresist polymers derived from the same, processes for producing such photoresist polymers, photoresist compositions comprising such polymers, and processes for producing a photoresist pattern using such photoresist compositions. In particular, photoresist monomers of the present invention comprise a moiety of Formula 4: where R1, R2, R3 and R4 are those defined herein. Photoresist polymers of the present invention have a relatively high etching resistance, and therefore are useful in a thin resist process and a bilayer photoresist process. Moreover, photoresist polymers of the present invention have a high contrast ratio between an exposed region and a non-exposed region.
摘要:
The present invention provides photoresist monomers, photoresist polymers derived from the same, processes for producing such photoresist polymers, photoresist compositions comprising such polymers, and processes for producing a photoresist pattern using such photoresist compositions. In particular, photoresist monomers of the present invention comprise a moiety of Formula 4: where R1, R2, R3 and R4 are those defined herein. Photoresist polymers of the present invention have a relatively high etching resistance, and therefore are useful in a thin resist process and a bilayer photoresist process. Moreover, photoresist polymers of the present invention have a high contrast ratio between an exposed region and a non-exposed region.
摘要:
The present invention discloses a cross-linking monomer for a photoresist polymer represented by following Chemical Formula 1: wherein, V represents CH2, CH2CH2, oxygen or sulfur; Y is selected from the group consisting of straight or branched C1-10 alkyl, oxygen, and straight or branched C1-10 ether; R′ and R″ individually represent H or CH3; i is a number of 1 to 5; and n is a number of 0 to 3; and a process for preparing a photoresist copolymer comprising the same.
摘要:
A photoresist polymer for a top-surface imaging process by silylation (TIPS), and a photoresist composition comprising the same. The protecting group of the present photoresist polymer is selectively protected in an exposed region, and thus a hydroxyl group is generated. The hydroxyl group reacts with the silylation agent to cause a silylation process. Accordingly, when the photoresist film is dry-developed, the exposed region only remains to form a negative pattern. In addition, the present photoresist composition has excellent adhesiveness to a substrate, thus preventing a pattern collapse in forming a minute pattern. As a result, the present photoresist composition is suitable for a lithography process using light sources such as ArF (193 nm), VUV (157 nm) and EUV (13 nm).
摘要:
The present invention provides a method for reducing or eliminating a poor pattern formation on a photoresist film by contacting the photoresist film with an alkaline solution prior to its exposure to light. Methods of the present invention significantly reduce or prevent T-topping and top-loss.
摘要:
The present invention relates to a photoresist composition containing a photo radical generator, more specifically, to a photoresist composition which comprises (a) photoresist resin, (b) a photoacid generator, (c) an organic solvent and (d) a photo radical generator. The present photoresist composition reduces or prevents a sloping pattern formation due to a higher concentration of acid in the upper portion of the photoresist relative to the lower portion of the photoresist.
摘要:
The present invention relates to a cross-linker for a photoresist polymer, and a process for forming a negative photoresist pattern by using the same. Preferred cross-linkers according to the invention comprise compounds having two or more aldehyde groups, such as glutaric dialdehyde, 1,4-cyclohexane dicarboxaldehyde, or the like. Further, a photoresist composition is disclosed, which comprises (i) a cross-linker as described above, (ii) a photoresist copolymer comprising a hydroxyl-containing alicyclic monomer, (iii) a photoacid generator and (iv) an organic solvent, as well as a process for forming a photoresist pattern using such photoresist composition.
摘要:
The present invention provides novel bicyclic photoresist monomers, and photoresist copolymer derived from the same. The bicyclic photoresist monomers of the present invention are represented by the formula: where m, n, R, V and B are those defined herein. The photoresist composition comprising the photoresist copolymer of the present invention has excellent etching resistance and heat resistance, and remarkably enhanced PED stability (post exposure delay stability).
摘要:
The present invention relates to a phenylenediamine derivative of the formula: where B and B′ are defined herein. The phenylenediamine derivatives of the present invention are useful as an additive in a photoresist composition. For example, it has been found that photoresist. compositions comprising the phenylenediamine derivative of the present invention have a high energy latitude margin, an improved contrast value, and enhanced post exposure delay stability.
摘要:
The present invention provides a novel photoresist monomer, photoresist copolymer derived from the same, and the photoresist composition comprising the same. In particular, the present invention provides a photoresist monomer of the formula: wherein, A, A′, X, m and n are those defined herein. The photoresist composition of the present invention has an excellent etching and heat resistance, and enhances the resolution and profile of the photoresist film.