Abstract:
Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers of the composition include recurring units having the formula 1 where X is a light-attenuating moiety, M is a metal, and each R is individually selected from the group consisting of hydrogen, alkyls, aryls, alkoxys, and phenoxys. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.
Abstract:
Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers include a light-attenuating moiety having a structure selected from the group consisting of: 1 where: each of X1 and Y is individually selected from the group consisting of electron withdrawing groups; R2 is selected from the group consisting of alkyls and aryls; and R3 is selected from the group consisting of hydrogen and alkyls. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.
Abstract translation:提供了抗反射组合物和使用这些组合物形成电路的方法。 组合物包含溶解或分散在溶剂体系中的聚合物。 在优选的实施方案中,聚合物包括具有选自下组的结构的光衰减部分:其中:X 1和Y各自独立地选自吸电子基团; R 2选自烷基和芳基; 和R 3选自氢和烷基。 所得到的组合物是旋转碗相容的(即,它们在微光刻工艺的烘烤阶段之前或在室温下储存期间不交联)是湿显影的并且具有优异的光学性能。
Abstract:
Novel anti-reflective coatings comprising small molecules (e.g., less than about 5,000 g/mole) in lieu of high molecular weight polymers and methods of using those coatings are provided. In one embodiment, aromatic carboxylic acids are used as the chromophores, and the resulting compounds are blended with a crosslinking agent and an acid. Anti-reflective coating films prepared according to the invention exhibit improved properties compared to high molecular weight polymeric anti-reflective coating films. The small molecule anti-reflective coatings have high etch rates and good via fill properties. Photolithographic processes carried out with the inventive material result in freestanding, 110-nm profiles.
Abstract:
Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment the polymers of the composition include recurring monomers having the formulas 1 where: (1) each R is individually selected from the group consisting of hydrogen, nullOH, aliphatics, and phenyls; and (2) L is selected from the group consisting of nullSO2null and nullCRnull2null, where each Rnull is individually selected from the group consisting of hydrogen, aliphatics, phenyls, and nullCX3, where each X is individually selected from the group consisting of the halogens. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.