摘要:
A novel photoresist copolymer, consisting of at least two aliphatic cyclo-olefins and an amine, which is useful for the photolithography using ArF as a light source. The photoresist prepared from the copolymer can be patterned with high resolution.
摘要:
The present invention relates to a polymer represented by following Formula 1 and a method of forming a micro pattern using the same: wherein, R is C1-C10 primary or secondary alcohol group; m and n independently represent a number from 1 to 3; and the ratio a:b:c is (10-80)mol %:(10-80)mol %:(10-80)mol %, respectively. The photoresist polymer according to the present invention is suitable for forming an ultra-micro pattern such as used in 4G or 16G DRAM semiconductor devices using a light source such as ArF, an E-beam, EUV, or an ion-beam.
摘要:
The present invention relates to a polymer represented by following Formula 1 and a method of forming a micro pattern using the same: wherein R1 is a C1-C10 straight- or branched-chain substituted alkyl group, or a benzyl group; R2 is C1-C10 primary, secondary or tertiary alcohol group; m and n independently represent a number from 1 to 3; and X, Y and Z are the respective polymerization ratios of the co-monomers. The photoresist polymer according to the present invention is suitable for forming an ultra-micro pattern such as used in 4 G or 16 G DRAM semiconductor devices using a light source such as ArF, an e-beam, EUV, or an ion-beam.
摘要:
The present invention provides heterobicyclo compounds of the formula: and a method for preparing the same, where Z, X, R1, R2, and m are those defined herein. Compounds of the present invention can be used as monomers for preparing a photoresist resin which is useful, for example, ultra-violet wavelength photolithography processes.
摘要:
The present invention relates to novel monomers for preparing photoresist polymers, polymers thereof, and photoresist compositions using the same. The monomers of the iinvention are represented by the following Chemical Formula 1: wherein, X and Y individually represent oxygen, sulfur, CH2 or CH2CH2; n is an integer of 1 to 5; and R1, R2, R3 and R4 individually represent hydrogen, C1-C10 alkyl having substituent(s) on its main or branched chain, C1-C10 ester having substituent(s) on its main or branched chain, C1-C10 ketone having substituent(s) on its main or branched chain, C1-C10 carboxylic acid having substituent(s) on its main or branched chain, C1-C10 acetal having substituent(s) on its main or branched chain, C1-C10 alkyl having substituent(s) including one or more hydroxyl group(s) on its main or branched chain, C1-C10 ester having substituent(s) including one or more hydroxyl group(s ) on its main or branched chain, C1-C10 ketone having substituent(s) including one or more hydroxyl group(s) on its main or branched chain, C1-C10 carboxylic acid having substituent(s) including one or more hydroxyl group(s) on its main or branched chain, or C1-C10 acetal having substituent(s) including one or more hydroxyl group(s) on its main or branched chain; provided that at least one of R1 to R4 represent(s) —COO—R′—OH wherein R′ is a linear or branched chain alkyl group with or without substituent(s) on its linear or branched chain. Polymers according to the present invention preferably comprise (i) a monomer of Chemical Formula 1 above as the first comonomer, (ii) a polyalicyclic derivative having one or more acid labile protective group(s) as the second comonomer, and (iii) at least one polymerization-enhancing monomer, preferably selected from the group consisting of maleic anhydride, maleimide derivatives, and combinations thereof. In order to increase photosensitivity, it is also preferable for the photoresist copolymer to comprise (iv) a polyalicyclic derivative having one or more carboxylic acid groups, as an additional comonomer.
摘要:
The present invention relates to photoresist monomers, polymers formed therefrom and photoresist compositions suitable for photolithography processes employing a DUV light source, such as KrF (249 nm) and ArF(193 nm); EUV; VUV; E-beam; ion-beam; and X-ray. Photoresist monomers of the present invention are represented by the following Chemical Formula 1: wherein, m is 1 or 2. Polymers of the present invention comprise repeating units derived from the comonomer of Chemical Formula 1, preferably together with monomers of the following Chemical Formula 2: wherein, R* is an acid-labile group, and l is 1 or 2.
摘要:
The present invention relates to photoresist monomers, polymers formed therefrom and photoresist compositions suitable for photolithography processes employing a DUV light source, such as KrF(249 nm) and ArF(193 nm); EUV; VUV; E-beam; ion-beam; and X-ray. Photoresist monomers of the present invention are represented by the following Chemical Formula 1: wherein, m is 1 or 2. Polymers of the present invention comprise repeating units derived from the comonomer of Chemical Formula 1, preferably together with monomers of the following Chemical Formula 2: wherein, R* is an acid-labile group, and W is 1 or 2.
摘要:
A novel copolymer useful for photoresist, which allows a formation of patterns showing a significantly improved resolution in a photolithography using ArF (193 nm) light source, is prepared by copolymerizing at least two cycloaliphatic olefins with an amide or imide.
摘要:
The present invention relates to oxabicyclo compounds and a method of preparing the same. The compounds of the present invention can be used as monomers for preparing a photoresist resin which is useful in photolithography processes using ultra-violet light sources, and are represented by the following Formula 1: ##STR1## wherein, R.sub.1 and R.sub.2 are the same or different, and represent a hydrogen or a C.sub.1 -C.sub.4 straight or branched chain substituted alkyl group; and m is a number from 1 to 4.In other embodiments, the present invention relates to an ArF or a KrF photoresist resin containing an oxabicyclo monomer, and compositions and photoresist micro pattern forming methods using the same.
摘要:
A coating composition containing a coating base resin and a C4-C10 alcohol as a main solvent, and a method for forming a fine contact of a semiconductor device including the steps of preparing the coating composition, forming a photoresist film on a semiconductor substrate having an underlying layer, performing exposure with a contact mask and developing processes to form a photoresist pattern for contact on the photoresist film, and coating the coating composition on the photoresist pattern to form a coating film.