Abstract:
PURPOSE: An organic compound used for manufacturing semiconductor element is provided by excluding the use of acidic compounds for etching the surface. The compound makes possible to etch only copper without affecting other coat materials. CONSTITUTION: An organic compound used for manufacturing semiconductor element is characterized by including 5wt%-50wt% of hydroxylamine, 10wt%-80wt% of at least one alkanol amine, which can be miscible with the hydroxylamine, and about 30wt% of a compound selected from the following three compounds of formulae (1), (2) and (3): in the compound of formula (1), R1 and R2 is a group selected from H, t-butyl, OH or COOH; in the compound of formula (2), R3 is a group selected from either OH or COOH; and in the compound of formula (3), which is an ethylene diamine tetracarboxylic acid, each R4, R5, R6, and R7 is a group selected from H or NH4 or ammonium salts.
Abstract:
PURPOSE: A thinner composition and a stripping method of photoresist using the same are provided to be capable of obtaining excellent stripping characteristics and reducing the cost of thinner composition. CONSTITUTION: A thinner composition for stripping photoresist is mainly made of propylene glocol monomethyl ether acetate, ethyl 3-ethoxy propionate, and gamma-butyrolactone. Preferably, the contents of the propylene glocol monomethyl ether acetate, the ethyl 3-ethoxy propionate, and the gamma-butyrolactone are 50-80 weight%, 10-45 weight%, and 1-12 weight%, respectively. Preferably, the contents are 53-75 weight%, 12-30 weight%, and 2-10 weight%, respectively. Preferably, the thinner composition further contains surfactant.
Abstract:
PURPOSE: A method of etching an aluminum layer is provided to make temperature control unnecessary by effectively removing the aluminium layer on a high temperature using a tetramethyl ammonium hydroxide dilute solution as an etchant. CONSTITUTION: The method comprises the steps of filling a chemical bath of a wet station with tetramethyl ammonium hydroxide having a concentrate of 1 to 20 weight percent; depositing a wafer in the chemical bath under high temperature and atmospheric pressure, wherein an aluminum layer is formed in the wafer. Using tetramethyl ammonium hydroxide as an etchant, the aluminium layer is effectively etched at a high temperature.
Abstract:
본 발명은 청정실내로 반입되는 물건에 대한 살균 및 수분조절기능을 갖는 반도체 청정실용 패스박스에 관한 것이다. 본 발명에 따른 반도체 청정실용 패스박스는, 본체(1)에 미생물을 살균하기 위한 살균등(5)과 건조한 질소가스를 유입시키는 다수의 질소가스인입구(6) 및 배기를 위한 배기구(7)가 더 형성되어 이루어진다. 따라서, 물품에 부착된 미생물의 살균으로 미생물에 의한 웨이퍼의 재오염을 방지하고, 또 수분의 조절에 의하여 청정실내의 환경을 일정하게 유지시켜 반도체 장치의 수율을 높이는 효과가 있다.
Abstract:
본 발명은 반도체장치의 웨이퍼상에 형성된 폴리실리콘막내에 있는 금속성분의 량을 측정하여 금속오염의 정도를 측정하는 방법에 관한 것으로서, 시약을 사용하여 상기 폴리실리콘막을 용해하는 단계와; 상기 시약을 전처리하여 매트릭스를 제거하는 단계와; 상기 매트릭스가 제거된 시약을 정량분석하여 극미량의 금속성분을 측정하는 단계를 포함한다. 상술한 측정방법에 의하면, 웨이퍼상에 형성된 폴리실리콘막에 대해서 웨이퍼레벨의 금속오염정도를 극히 정밀하게 분석할 수 있다.
Abstract:
PURPOSE: A flux composition for solder bumps is provided to have the flux composition in which flux reflow profile and copper corrosion property are excellent, thereby having the excellent bump shape and forming the solder bump in which the defective product is not generated. CONSTITUTION: A flux composition for forming solder bumps includes resin, activator and solvent; and the resin comprises gum rosin and rosin ester; a mass ratio of the gum rosin versus rosin ester is 60:40 ~ 90:10. In addition, a semiconductor device manufacturing method comprises: a step of forming a bump (15) on the substrate (1); a step of providing the flux composition to cover the bump; a step of reflowing the bump; a step of removing a residual flux composition.
Abstract:
실리콘 고분자 및 포토레지스트 제거용 조성물, 이를 이용한 막 제거 방법 및 패턴 형성 방법에서, 수산화 제4암모늄, 설폭사이드 화합물, 디알킬렌글리콜알킬에테르 및 물을 포함하는 조성물을 실리콘 고분자막 및 포토레지스트막에 적용하여 제거한다. 하부막의 손상을 방지하고 파티클을 발생시키지 않으면서 하드 마스크막으로 사용되는 실리콘 고분자막 및 포토레지스트막을 인-시튜로 제거할 수 있다.