Abstract:
PURPOSE: A photo resist pattern formation method is provided to appropriately mix a coating polymer and surfactant, thereby improving LWR(Line Width Roughness). CONSTITUTION: A photo resist layer is arranged on the substrate(101). The photo resist layer is exposed using an exposure mask. A back up pattern(112) is arranged by developing the exposed photo resist layer. The surface of the back up pattern is surface-processed with a processing agent including a coating polymer. The surface-processed back up pattern is processed with a cleaning agent including a surfactant.
Abstract:
PURPOSE: A method for forming a minute pattern of a semiconductor device by a double patterning process using acid diffusion is provided to form various minute patterns by increasing the density of the pattern. CONSTITUTION: A plurality of first mask patterns are formed(210a). A capping layer including an acid source is formed in a side wall and an upper surface of the first mask patterns(210b). A second mask layer filling a first space is formed on the capping layer(210d). The acid diffusion region from the capping layer to the second mask layer is formed(210e-1). A plurality of second mask patterns comprised of the remaining part of the second mask layer are formed. The capping layer includes a water soluble polymer and the acid source.
Abstract:
축합환의 방향족 환을 포함하는 보호기를 가지는 감광성 폴리머 및 이를 포함하는 레지스트 조성물에 관하여 개시한다. 본 발명에 따른 감광성 폴리머는, 폴리머 백본에 결합되는 보호기로서 산 존재 하에 쉽게 가수분해될 수 있고 다음 식으로 표시되는 축합환의 방향족 환을 포함하는, 산에 의해 분해 가능한 보호기를 포함한다.
식중, R 1 은 수소 원자 또는 C 1 ∼ C 4 의 알킬기이고, X는 수소 원자, 할로겐, 알킬기 또는 알콕시기이고, y는 1 ∼ 3의 정수이고, y = 2 이상일 때 상기 축합환의 방향족 환은 선형환 또는 분기상의 환으로 이루어진다. 측합환, 방향족 환, 감광성 폴리머, 보호기
Abstract:
Photosensitive polymer having protective group including fused aromatic ring is provided to have sufficient resistance to dry etching and give excellent etching selectivity to a base layer by comprising the protective group which is bonded to polymer backbone, contains fused aromatic ring of a condensed ring and is easily hydrolyzed by acid. The photosensitive polymer has weight average molecular weight ranging from 3,000 to 50,000, includes fused aromatic ring of condensed ring, and comprises a structure represented by formula, wherein: R1 is hydrogen or alkyl group having carbon atoms ranging from 1 to 4; y is integer of 1 to 3 and, wherein the y is 2, the fused aromatic ring comprises linear ring or branched ring; Z is hydrogen or methyl group; and l/(l+m) ranges from 0.5 to 0.7. A resist composition comprises the above photosensitive polymer together with 0.5 to 10wt.% of PAG(photoacid generator) relative to total weight of the polymer. The composition further contains 0.5 to 50wt.% of organic base such as tertiary amine.
Abstract:
A photosensitive polymer of a resist composition includes a copolymer of alkyl vinyl ether containing silicon and maleic anhydride, represented by the following formula:where R1 is -H, -OSi(CH3)2C(CH3)3 or -OSi(CH3)3; R2 is -H, -OH, -OCOCH3, -OSi(CH3)2C(CH3)3 or -OSi(CH(CH3)2)3; R3 is -H, -OH or -OCOCH3; R4 is -H, -OSi(CH3)2C(CH3)3, -CH2OSi(CH3)2C(CH3)3 or -CH2OSi(CH(CH3)2)3; and at least one of R1, R2, R3 and R4 is a Si-containing group.
Abstract:
PURPOSE: Provided are a photosensitive polymer with a protecting group containing fused aromatic ring and the resist composition containing the same polymer. The photosensitive polymer has a protecting group of the following formula (a) bonded to the backbone of the polymer which is easily hydrolyzed by acid. The above fused aromatic ring bonded to the polymer has strong resistance to dry etching and the resist composition shows big difference of solubility in the alkali developing solution between the part of light exposed and the non-exposed, enhancing the increase of the contrast in the resist layer. The above fused aromatic ring has also the property of absorbing UV light making the composition to be suitable for KrF or ArF resist material in the wave length used in patterning a resist layer. And the resist composition with the above fused aromatic ring with strong absorption in a certain energy wave length is used as a material for bottom anti-reflective layer (BARL), enabling it to be used as BARL material in the future ArF lithography. CONSTITUTION: The photosensitive polymer comprises a polymer with the various protection groups, 0.5-10wt.% (based on the above polymer) of photoacid generator (PAG) such as triarylsulfonium salts, diaryliodonium salts, sulfonates and their mixtures and 0.5-50wt.% (based on PAG) organic salts such as triethanolamine, triisobutylamine, triisooctylamine, triisodecylamine and their mixtures. The above various polymers are a polymer of 3,000-200,000 average molecular weight consisting polymer backbone and the protecting group of the formula (a), where R1 is hydrogen atom or C1-C4 alkyl, X is hydrogen atom, halogen, alkyl or alkoxy group, y is an integer of 1-3, when y is more than 2, the above aromatic ring is linear or branching rings; a polymer of 3,000-50,000 average molecular weight represented by formula 1 where Z is hydrogen atom or methyl, m/(m+n) is 0.05-0.4 and other similar backbone polymers of the same average molecular weight represented by formula 2 and 3 and a polymer of 3,000-50,000 average molecular weight represented by formula 4 where Z is hydrogen atom or methyl, m/(m+n) is 0.5-0.7 and n/(m+n) is 0.3-0.5.
Abstract:
PURPOSE: A chemical amplified resist composition is provided, which is comprised of blending polymer containing at least of two photosensitive polymers containing anthracene derivative. CONSTITUTION: The photoresist composition comprises; (i) the photosensitive polymer having 2,000- 200,000 of weight average molecular weight represented by the formula I, wherein, R1 is hydrogen or methyl and x/(x+y)=0.1-0.5; (ii) the photosensitive polymer having 2,000-200,000 of weight average molecular weight represented by the formula II, wherein, R2 is hydrogen or methyl, R3 and R4 are independently the group of linear chain of C1-C3 or group containing one group selected from hydroxy group or carboxyl group, m/(m+n)=0.1-0.5; (iii) blending polymer comprised of polymer containing acetal group; and (iv) photoacid generator.
Abstract:
PURPOSE: A polymer constituting a resist composition of chemically-amplified type and a resist composition including said polymer are provided which have excellent adhesive force to hymen and strong resistance to dry etching in photo lithographic process that can form fine patterns. CONSTITUTION: The polymer constituting the resist composition of chemically-amplified type is a polymer in which an anthracene derivative is introduced into the tert-butoxy carbonyl group, which is expressed in the following formula, for the reinforcement of resistance to dry etching, and the resist composition including said polymer is composed of copolymer or terpolymer, at least two blending polymers, and PGA(PhotoAcid Generator) capable of generating acid at the time of irradiation of light: (chemical formula), wherein l/(l+m+n) = 0.01 - 0.5 and m/(l+m+n) = 0.0 - 0.5, and preferably (l+m)/(l+m+n) = 0.1 - 0.5.
Abstract translation:目的:提供一种构成化学放大型抗蚀剂组合物的聚合物和包含所述聚合物的抗蚀剂组合物,其对于hymen具有优异的粘合力,并且能够形成精细图案的光刻工艺中的耐蚀刻性强。 构成:构成化学增幅型抗蚀剂组合物的聚合物是其中将蒽衍生物引入到下式中表示的叔丁氧基羰基中用于增强耐干腐蚀性的聚合物,并且 包含所述聚合物的抗蚀剂组合物由共聚物或三元共聚物,至少两种共混聚合物和能够在光照射时产生酸的PGA(PhotoAcid发生器)组成:(化学式),其中l /(1 + m + n )= 0.01〜0.5,m /(1 + m + n)= 0.0-0.5,优选(1 + m)/(1 + m + n)= 0.1〜0.5。
Abstract:
본 발명은 화학식 1의 고분자 또는 상기 화학식 1의 고분자를 갖는 공중합체 이상을 포함하는 감광성 폴리머(Photosensitive Polymer)를 제공한다.
식중 R 1 은 C 1 ∼C 20 의 지방족 탄화수소이고, -CH 3 ,-CH 2 CH 3 ,n-부틸 (n-butyl), 시클로헥실(cyclohexyl)기로 이루어지는 군에서 선택되거나 또는 애더맨틸(Adamantyl), 노르보르닐(Norbornyl), 이소보르닐(Isobornyl)기와 같은 C 7 ∼C 20 의 지환식(脂環式)의 지방족 탄화수소(Alicyclic Aliphatic Hydrocarbone)로 이루어지는 군에서 선택되며, n은 정수이다. 또한, 본 발명은 화학식 2의 고분자 및 PAG를 포함하는 화학증폭형 레지스트 조성물을 제공한다.
식중, R 1 은 C 1 ∼C 20 의 지방족 탄화수소이며, R 2 는 H 또는 CH 3 이고, R 3 는 t-부틸(t-butyl) 또는 테트라히드로피라닐(Tetrahydropyranyl)기로 이루어지는 군에서 선택되는 한편, m 및 n은 정수로서 n/(m+n) = 0.1∼0.5 이다. 본 발명에 의하면, 통상의 현상액을 사용하여 현상할 수 있고, 뛰어난 식각내성을 가지며, 막질에 대하여 우수한 접착력을 발휘한다.
Abstract:
본 발명은 화학식 1의 고분자 또는 상기 화학식 1의 고분자를 갖는 공중합체 이상을 포함하는 감광성 폴리머(Photosensitive Polymer)를 제공한다.
식중 R 1 은 C 1 ∼C 20 의 지방족 탄화수소이고, -CH 3 ,-CH 2 CH 3 ,n-부틸 (n-butyl), 시클로헥실(cyclohexyl)기로 이루어지는 군에서 선택되거나 또는 애더맨틸(Adamantyl), 노르보르닐(Norbornyl), 이소보르닐(Isobornyl)기와 같은 C 7 ∼C 20 의 지환식(脂環式)의 지방족 탄화수소(Alicyclic Aliphatic Hydrocarbone)로 이루어지는 군에서 선택되며, n은 정수이다. 또한, 본 발명은 화학식 2의 고분자 및 PAG를 포함하는 화학증폭형 레지스트 조성물을 제공한다.
식중, R 1 은 C 1 ∼C 20 의 지방족 탄화수소이며, R 2 는 H 또는 CH 3 이고, R 3 는 t-부틸(t-butyl) 또는 테트라히드로피라닐(Tetrahydropyranyl)기로 이루어지는 군에서 선택되는 한편, m 및 n은 정수로서 n/(m+n) = 0.1∼0.5 이다. 본 발명에 의하면, 통상의 현상액을 사용하여 현상할 수 있고, 뛰어난 식각내성을 가지며, 막질에 대하여 우수한 접착력을 발휘한다.