Abstract:
균일한 프로파일을 갖는 포토레지스트 패턴을 형성할 수 있는 광산 발생제, 이를 포함하는 포토레지스트 조성물 및 패턴 형성방법에 관한 것이다. 상기 포토레지스트 조성물은 수지 4 내지 10중량%, 술포늄염 양이온부 및 하기 구조식 2로 표기되는 친수성 사이트인 카르복실기가 도입된 술포늄염 음이온부를 포함하는 광산 발생제 0.1 내지 0.5중량% 및 여분의 용매를 포함한다. 상술한 조성을 갖는 포토레지스트 조성물 이용하면 균일한 프로파일을 갖는 포토레지스트 패턴을 형성할 수 있다.
Abstract:
A hydrophilic photoacid generator is provided to be uniformly distributed in a photoresist film. A photoacid generator includes a sulfonium salt cation part represented by the following formula 1, and a sulfonium salt anion part having a carboxyl group as a hydrophilic site, which is represented by the following formula 2. In the formula 1, A, B, and C each independently comprise a cyclo group and a cycloalkyl group. In the formula 2, n is 1-3, and X comprises a C4-10 cyclo group, an adamantyl group, and a cycloheptane group comprising oxygen.
Abstract:
A method for forming a photoresist pattern is provided to be easily removed without generating residues in an ashing process following the formation of the photoresist pattern applicable as a mask during the ion implantation. A method for forming a photoresist pattern comprises the steps of: selectively exposing a photoresist pattern layer by projecting a beam having a mask image on a substrate applied thereon a photoresist layer; forming a preliminary photoresist pattern by developing the exposed photoresist; and finishing the preliminary photoresist pattern into the photoresist pattern by delaminating a protective group from the pre-photoresist pattern by performing a blank exposure for the pre-photoresist pattern.
Abstract:
A photoresist developer is provided to reduce a process time, improve a production efficiency, and thus enhance productivity of a semiconductor production process. A photoresist developer includes 0.50-2.38wt% of a hydrogen-bonding compound, 0.01-5.00wt% of a surfactant, and the balance of an aqueous alkaline solution. The hydrogen-bonding compound comprises 4-(3-aminopropyl)morpholine represented by the following formula. A method for forming a photoresist pattern includes the steps of: selectively exposing a photoresist layer formed on a semiconductor substrate to a light; and developing the exposed photoresist layer using the photoresist developer.