There are disclosed sulfonic acid precursor compositions, as are methods of using these compositions in, for example, photolithography. Other embodiments are also disclosed.
已披露磺酸前体组合物,以及在例如光刻中使用这些组合物的方法。还披露了其他实施方式。
US8501382B1
申请人:——
公开号:US8501382B1
公开(公告)日:2013-08-06
Catalytic and Autocatalytic Mechanisms of Acid Amplifiers for Use in EUV Photoresists
作者:Seth A. Kruger、Craig Higgins、Brian Cardineau、Todd R. Younkin、Robert L. Brainard
DOI:10.1021/cm101867g
日期:2010.10.12
triggers (Body-3) decompose autocatalytically, but the six with secondary triggers (Body-2) are unaffected. Although Body-2 AAs do not decompose autocatalytically, nonaflate acid does catalyze their decomposition. Lithographic evaluation showed that some AAs are capable of simultaneously improving the resolution, line-edge-roughness, and sensitivity of a control EUV photoresist. This simultaneous improvement
合成并研究了十二种氟化酸放大器(AAs)用于暴露于13.5 nm极紫外(EUV)光的光刻胶中。酸增强剂是在酸的存在下分解以通过催化或自催化机理产生更多酸的化合物。这些AA由主体,触发器和酸前体组成。在C中的AA的溶液的热分解率6 d 6 /米,在100℃-ethylphenol(50/50重量%)C通过监测19 F NMR具有和不具有1.2当量。的2,4,6-三吨丁基吡啶。碱存在下的所有AA均根据一级动力学以速率常数k Base分解。速率常数,k在各种温度下,碱产生激活参数ΔH ‡,ΔS ‡和ΔG ‡。活化的焓,Δ ħ,‡,是在一个窄的范围内的16.6-19.1(千卡/摩尔),而激活的熵,Δ小号‡,范围从0到-12(cal /(mol K))。当允许酸在溶液中累积(在没有碱的情况下)时,具有三级引发剂(Body-3)的6个AA会自催化分解,但是具有二级引发剂(Body-2)的6个不受影响。尽管Body-2