摘要:
A polyalkylmethacrylate co-polymer of polyhydroxystyrene has been found to be an ideal blending partner in a novolak photoresist composition. The preferred co-polymer is poly(p-hydroxystyrene)-co-(methyl methacrylate). The co-polymer is fully miscible with novolaks and has a high thermal stability (>150.degree. C.).
摘要:
A co-polymer of benzophenone and bisphenol A has been shown to have DUV absorption properties. Therefore, the co-polymer has particular utility as an antireflective coating in microlithography applications. Incorporating anthracene into the co-polymer backbone enhances absorption at 248 nm. The endcapper used for the co-polymer can vary widely depending on the needs of the user and can be selected to promote adhesion, stability, and absorption of different wavelengths.
摘要:
A photoresist composition for use in lithographic processes in the fabrication of semiconductor devices such as integrated circuit structures is disclosed. The photoresist composition includes a monomeric sensitizer bounding to a base-soluble long chain polymer.
摘要:
Several mid UV photo acid generators (PAGs), a chemically amplified photo resist (CAMP), and method for improving nested to isolated line bias are provided. Similarly, photo speed may also be improved. Unlike conventional mid UV PAGs, the present invention's PAG compounds, resist composition, and method do not require a mid UV sensitizer. Specifically, PAGs are provided that bear a chromophore capable of receiving mid UV radiation, particularly I-line, and that are suitable for use in a chemically amplified photo resist having a photo speed of 500 mJ/cm.sup.2 or less, but preferrably 200 mJ/cm.sup.2 or less. For example, the PAGs can be a sulfonium or iodonium salt, such as anthryl, butyl, methyl sulfonium triflate and bis(4-t-butylphenyl)iodonium 9,10-dimethoxyanthracene sulfonate. The chromophore forming a part of the PAGs can be selected from polyaromatic hydrocarbons, for example, chrysenes, pyrenes, fluoranthenes, anthrones, benzophenones, thioxanthones, anthracenes, and phenanthrenes, but preferably anthracenes.
摘要翻译:提供了几个中等紫外光酸产生剂(PAG),化学放大光抗蚀剂(CAMP)和改进嵌套到隔离线偏压的方法。 类似地,也可以提高照相速度。 与传统的中等紫外线PAG不同,本发明的PAG化合物,抗蚀剂组合物和方法不需要中等紫外线敏化剂。 具体地说,提供了能够承受中等紫外线辐射,特别是I线的发色团的PAG,并且适合用于光速为500mJ / cm 2以下但优选为200mJ / cm 2的化学放大型光致抗蚀剂的PAG, cm2以下。 例如,PAG可以是锍或碘鎓盐,例如蒽基,丁基,甲基锍三氟甲磺酸酯和双(4-叔丁基苯基)碘9,10-二甲氧基蒽磺酸盐。 形成PAG的一部分的发色团可以选自多芳族烃,例如氯仿,芘,荧蒽,蒽,二苯甲酮,噻吨酮,蒽和菲,但优选为蒽。
摘要:
A photoresist composition for use in lithographic processes in the fabrication of semiconductor devices such as integrated circuit structures is disclosed. The photoresist composition includes a monomeric sensitizer bounding to a base-soluble long chain polymer.
摘要:
An antireflective coating composition for use with chemically amplified photoresist compositions comprising a polymer composition which is highly absorbent to mid and deep UV radiation, which is substantially inert to contact reactions with a chemically amplified photoresist composition, and which is insoluble in the developer for the chemically amplified photoresist composition.
摘要:
An antireflective coating composition for use with chemically amplified photoresist compositions comprising a polymer composition which is highly absorbent to mid and deep UV radiation, which is substantially inert to contact reactions with a chemically amplified photoresist composition, and which is insoluble in the developer for the chemically amplified photoresist composition.
摘要:
Positive photoresist compositions and methods using the photoresist compositions for making submicron patterns in the production of semiconductor devices are disclosed. The photoresists contain sensitizers that are mixed naphthoquinonediazide 4- and 5- sulfonic acid esters of bis and tris(mono, di and trihydroxyphenyl) alkanes.
摘要:
Resist compositions having good footing properties even on difficult substrates are obtained by using a combination of base additives including a room temperature solid base, and a liquid low vapor pressure base. The compositions are especially useful on metal substrates such as chromium-containing layers commonly used in mask-making.
摘要:
A method and apparatus are provided for in situ monitoring and analyzing of process parameters for semiconductor fabrication processes including cleaning semiconductor wafers utilizing a supercritical fluid or a high pressure liquid such as CO2. The method and apparatus utilize a spectrometer having a reflective mirror proximate the vessel holding the high pressure fluid. NIR radiation transmitted into the vessel through a window and out of the vessel through an opposed window is reflected and detected and measured and the composition of the fluid in the pressure vessel is determined allowing the user to control process parameters based on the measured composition.