共查询到19条相似文献,搜索用时 671 毫秒
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本文综述了过去十余年间中国科技大学施文芳教授研究组在光固化阻燃技术领域的工作成果,主要包括活性单体、稀释剂、光固化树脂配方等体系,品类有磷酸酯类单体、含磷丙烯酸酯、超支化丙烯酸酯树脂、膦酸酯类单体和树脂、丙烯酸化环状磷腈、甲基丙烯酸化三聚氰胺、含磷环氧单体等十余种。同时介绍了这些配方体系的合成、性能和应用方法,以及对其热降解、阻燃性能评价和阻燃机理的研究。 相似文献
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一种新型紫外正型光刻胶成膜树脂的制备及光刻性能研究 总被引:1,自引:0,他引:1
本文合成了N-(p-羧基苯基)甲基丙烯酰胺单体,并将其与N-苯基马来酰亚胺共聚得到共聚物聚N-(p-羧基苯基)甲基丙烯酰胺共N-苯基马来酰亚胺(poly(NCMA-co-NPMI)).将此共聚物作为成膜树脂,与感光剂、溶剂等复配得到一种新型耐高温紫外正型光刻胶.本文探讨了该光刻胶的最佳配方组成和最佳光刻工艺.最佳配方组成为:15%—20%成膜树脂,4.5%—6%感光剂和70%—80%溶剂;最佳光刻工艺为:匀胶30 s(4000 rpm),前烘4 min(90℃),感度为30—35mJ/cm2,在0.2%TMAH溶液显影10 s和后烘2 min(90℃). 相似文献
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本文引入单体MAGME合成了具有自交联作用的MAGME、苯乙烯和N(4 羟基苯基)马来酰亚胺的共聚物,并以该聚合物为基体树脂,研制了一种新型的水显影化学增幅型负性抗蚀剂,并初步研究了其光刻工艺条件. 相似文献
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PAAM高吸水树脂反相悬浮聚合 总被引:1,自引:0,他引:1
采用反相悬浮聚合法,通过部分中和丙烯酸与丙烯酰胺共聚制备了聚(丙烯酸-丙烯酰胺)(PAAM)高吸水树脂,讨论了聚合过程主要影响因素对其吸液性能的影响,并对其进行了FTIR、TGA测试,得到最佳的合成工艺配方:单体质量浓度为30%,中和度N为75%,丙烯酸与丙烯酰胺的摩尔比为7∶3,交联剂、引发剂和分散剂质量浓度分别为0.065%、0.7%和0.5%(相对于单体总质量),单体溶液的滴加速度为2~3mL/min,聚合温度和时间分别为70℃和1.5h。此时在蒸馏水、0.9%NaCl溶液%(wt)中最大吸水倍率分别为Qw=1300g/g、Qs=93g/g(Qw为蒸馏水中吸水倍率,Qs为0.9%NaCl溶液中的吸水倍率,下同),树脂在320℃之前都是比较稳定的,可以适应较高的使用温度。 相似文献
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本文研究了互贯树脂的交联度、两网的重量比与珠体膨胀度的关系;以及第三单体、合成工艺对树脂强度的影响,从而解决了互贯树脂耐疲劳强度问题。 相似文献
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本文综述了用于193 nm深紫外光刻胶的主体成膜树脂的种类及常用合成单体的研究进展,包括聚(甲基)丙烯酸酯体系、环烯烃-马来酸酐共聚物(COMA)体系、乙烯醚-马来酸酐共聚物(VEMA)体系、降冰片烯加成聚合物体系、环化聚合物体系、有机-无机杂化树脂体系以及光致产酸剂(PAG)接枝聚合物主链型等,并分析了目前关于曝光、分辨率和抗蚀刻性能方面存在的问题及未来的发展方向。 相似文献
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The photochemical behavior of the visible light initiating system that consists of a sensitizing dye, 2,6‐diethyl‐8‐phenyl‐1,3,5,7‐tetramethylpyrromethene BF2 complex (EPP), and a photoacid generator, N‐trifluoromethylsulfonyloxy‐1,8‐naphthalimide (NIOTf), was studied mainly by means of absorption and fluorescence spectrometry not in solution but in a polymer matrix which is a closer medium to the one currently employed in the field of photoresists. Excited singlet electron transfer from EPP to NIOTf was considered as the main reaction pathway in this system. The EPP/NIOTf system was applied to a photoresist for printed circuit board with an appropriate binder polymer which contains an acetal protection group. A pattern profile of the photoresist was exceedingly affected by the amount of photogenerated acids, their diffusion, and amine in the atmosphere. Finally, by controlling exposure energy and the post‐exposure bake (PEB) process, a photoresist with a high resolution (8 µm line and space) was obtained under argon ion laser irradiation. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
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浸没式光刻技术是在原干法光刻的基础上采用高折射率浸没液体取代原来空气的空间,从而提高光刻分辨率的一种先进技术.此项技术的实际应用,为当前IC产业的飞速发展起到了关键的作用.本文概述了浸没式光刻技术的发展历程和浸没式光刻胶遇到的挑战及要求;对浸没式光刻胶主体树脂、光致产酸剂及添加剂的研究进展进行了综述;最后对浸没式光刻胶的研究发展方向作了进一步的探讨及初步预测. 相似文献
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A negative photoresist has been developed by partial esterification of poly(p-hydroxystyrene) with p-azidobenzenesulfonyl chloride. About 10% of esterification is sufficient to sensitize the polymer to light in the wavelength region between 240 and 300 nm. The dose required to insolubilize the polymer was 80 mJ/cm2. The resolution capability is not as high as expected because of the swelling of photoinsolubilized resist films in an aqueous alkaline developer. 相似文献
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以甲基丙烯酸(MAA)、甲基丙烯酸苄基酯(BZMA)、甲基丙烯酸羟乙酯(HEMA)和丙烯酸正丁酯(BA)为共聚单体,偶氮二异丁腈(AIBN)为引发剂,2-(十二烷基三硫代碳酸酯基)-2-甲基丙酸(DMP)为链转移试剂,采用可逆加成-断裂链转移聚合(RAFT)制备了甲基丙烯酸酯共聚物(PMBBH)。利用傅立叶红外光谱(FT-IR)、核磁共振氢谱(1HNMR)和凝胶渗透色谱(GPC)对共聚物的结构进行了表征。以共聚物PMBBH为基体树脂制备了负性光致抗蚀剂,考察了PMBBH的分子量对光致抗蚀剂分辨率的影响。结果表明,以数均分子量为5.45×103 g/mol,重均分子量为7.79×103 g/mol的PMBBH-2作为基体树脂时,该光致抗蚀剂得到的图像轮廓清晰,图形分辨率可达50 μm。 相似文献
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Tung‐Lin Li Steve Lien‐Chung Hsu 《Journal of polymer science. Part A, Polymer chemistry》2009,47(6):1575-1583
A new electrically conductive photoresist has been developed. It is based on the dispersion of silver nanoflakes in a negative‐tone photosensitive polyimide (PSPI) precursor. 2‐Mercaptopropionic acid was used as the surfactant to modify the silver nanoflake surface for the dispersion of silver nanoflakes in the polymer. The silver/PSPI nanocomposites showed electrical conductivity at a low silver content of 10 wt %. The electrical conductivity of the silver/PSPI nanocomposites ranged from 10 to 104 S/cm, which was dependent on the silver weight fraction in the resist formulation. Patterns with a resolution of 30 μm were obtained from the silver/PSPI nanocomposites. The silver/PSPI nanocomposites had excellent thermal properties. Their glass transition temperatures were above 360 °C and thermal decomposition temperatures were over 420 °C. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1575–1583, 2009 相似文献
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Matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS) is rarely used for the analysis of small molecules (< 700 Da) because the low m/z signal is overwhelmed by a high background of matrix ions. We have developed a solution to this problem that employs a novel polymer composite which is formed by covalently cross-linking alpha-cyano-4-hydroxycinnamic acid (HCCA) to SU-8 photoresist via cationic photo-polymerization. Since the HCCA molecules are immobilized, background noise resulting from the matrix ions is significantly reduced or eliminated. Moreover, owing to the hydrophobic surface of the polymer film, the sample spots shrink during solvent evaporation and thus the analytes can be concentrated. As a result, this polymer composite improves detection sensitivity and extends the analyzable species to the low-mass region. The covalent incorporation of HCCA with SU-8 was validated with reflectance FTIR spectroscopy, and the polymer surface was characterized with scanning electron microscopy (SEM). Using MRFA, a small peptide as a standard, 8 mg of HCCA per mL of SU-8 photoresist was found to yield the highest sensitivity and the lowest background noise. Analytes such as peptides or small organic molecules were further examined on this composite surface and no analyte degradation was observed. In a trial of peptide mass fingerprinting of cytochrome c on the composite substrate, the inclusion of low m/z tryptic peptides in the database search dramatically improved the protein identification probability score. 相似文献
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