摘要:
Disclosed is a surface treatment liquid which enables simple and efficient hydrophobilization of a substrate and prevention of collapse of a resin pattern or etched pattern. Also disclosed are a surface treatment method using the surface treatment liquid, a hydrophobilization method using the surface treatment liquid, and a hydrophobilized substrate. When a substrate is hydrophobilized, the substrate is coated with a surface treatment liquid containing a silylating agent and a hydrocarbon non-polar solvent. When a pattern is prevented from collapse, the surface of a resin pattern formed on a substrate or etched pattern formed on a substrate by etching is treated using a surface treatment liquid containing a silylating agent and a solvent.
摘要:
Conventional detergents for lithography which contain a surfactant as an active ingredient should have a reduced surfactant concentration because heightened surfactant concentrations result in dissolution of the resin component of a photoresist composition and hence in a dimensional change of a resist pattern. However, the conventional detergents have had a drawback that such a low concentration unavoidably reduces the ability to inhibit pattern falling and defect occurrence. A detergent for lithography is provided which is an aqueous solution containing (A) at least one member selected among nitrogenous cationic surfactants and nitrogenous ampholytic surfactants and (B) an anionic surfactant. This detergent retains a low surface tension even when it has a low concentration. It is effective in inhibiting pattern falling and defect occurrence. It can also inhibit resist patterns from fluctuating in dimension.
摘要:
A novel method for forming a pattern capable of decreasing the number of steps in a double patterning process, and a material for forming a coating film suitably used in the method for forming a pattern are provided. First resist film (2) is formed by applying a first chemically amplified resist composition on support (1), and thus formed film is selectively exposed, and developed to form multiple first resist patterns (3). Next, on the surface of the first resist patterns (3) are formed multiple coating patterns (5) by forming coating films (4) constituted with a water soluble resin film, respectively. Furthermore, a second chemically amplified resist composition is applied on the support (1) having the coating pattern (5) formed thereon to form second resist film (6), which is selectively exposed and developed to form multiple second resist patterns (7). Accordingly, a pattern including the coating patterns (5) and the second resist patterns (7) is formed on the support (1).
摘要:
Provided are a material for forming a resist protecting film which is for use in a liquid immersion lithography process and which is formed on a resist film, wherein the material has the following properties of: being transparent with respect to exposure light; having substantially no compatibility with a liquid for liquid immersion lithography; and causing no mixing with the resist film, a composite film comprising a protective film formed from the material and a resist film, and a method for forming a resist pattern using them. These can prevent both the resist film and the liquid used from changing in properties during the liquid immersion lithography, so that a resist pattern with high resolution can be formed using the liquid immersion lithography.
摘要:
This invention provides a novel cleaning liquid for lithography that, for a photoresist pattern, is used for reducing a surface defect, that is, defect, of a product, preventing pattern collapse during water rinsing, and further imparting electron beam irradiation resistance to a resist to suppress pattern shrinkage. Further, in the novel cleaning liquid for lithography, bacteria contamination does not occur during storage. The cleaning liquid for lithography comprises an aqueous solution containing an amine oxide compound represented by general formula wherein R1 represents an alkyl or hydroxyalkyl group having 8 to 20 carbon atoms which may be interrupted by an oxygen atom; and R2 and R3 represent an alkyl or hydroxyalkyl group having 1 to 5 carbon atoms.
摘要翻译:本发明提供了一种用于光刻的新型清洁液,其用于光致抗蚀剂图案,用于减少产品的表面缺陷,即产品的缺陷,防止水洗过程中的图案塌陷,并进一步赋予抗蚀剂电子束照射抗力 抑制图案收缩。 此外,在用于光刻的新型清洁液中,在储存期间不会发生细菌污染。 用于光刻的清洁液包含含有由通式表示的氧化胺化合物的水溶液,其中R 1表示可被氧原子中断的具有8至20个碳原子的烷基或羟烷基; R 2和R 3代表具有1至5个碳原子的烷基或羟烷基。
摘要:
The formation of a resist pattern with high resolution using liquid immersion lithography, while concurrently preventing deterioration of the resist film during the liquid immersion lithography and deterioration of the used liquid itself, is possible through the use of a liquid which can be suitably used in a liquid lithography process in which the above resist film is exposed while being intervened by a liquid having a predetermined thickness and refractive index higher than air on at least a resist film on a route of allowing lithographic exposure light to reach to the resist film, thereby improving the resolution of a resist pattern. A liquid composed of a fluorine-based solvent that has a lowered hydrogen atomic concentration and exhibits sufficient transparency for the exposure light having a wavelength of no more than 200 nm employed in the exposure process, and that has a boiling point of 70 to 270° C., is used as an immersion liquid in liquid immersion lithography.
摘要:
It is disclosed an over-coating agent for forming fine-line patterns which is applied to cover a substrate having thereon photoresist patterns and allowed to shrink under heat so that the spacing between adjacent photoresist patterns is lessened, with the applied film of the over-coating agent being removed substantially completely to form or define fine trace patterns, further characterized by containing a copolymer or a mixture of polyvinyl alcohol with a water-soluble polymer other than polyvinyl alcohol. Also disclosed is a method of forming fine-line patterns using the over-coating agent. According to the invention, one can effectively increase the shrinkage amount (the amount of heat shrinking) of the agent, thereby achieving a remarkably improved effect of forming or defining fine-line patterns and which also present satisfactory profiles and meet the characteristics required of today's semiconductor devices.
摘要:
Provided are a material for forming a resist protecting film which is for use in a liquid immersion lithography process and which is formed on a resist film, wherein the material has the following properties of: being transparent with respect to exposure light; having substantially no compatibility with a liquid for liquid immersion lithography; and causing no mixing with the resist film, a composite film comprising a protective film formed from the material and a resist film, and a method for forming a resist pattern using them. These can prevent both the resist film and the liquid used from changing in properties during the liquid immersion lithography, so that a resist pattern with high resolution can be formed using the liquid immersion lithography.
摘要:
Disclosed herein is a post-ashing treating liquid composition comprising a salt of hydrofluoric acid with a base free from metal ions, a water-soluble organic solvent, water, and an acetylene alcohol/alkylene oxide adduct. Disclosed also herein is a process for treatment with said treating liquid composition. For removal of resist residues such as modified photoresist films and metal depositions, the treating liquid composition and the treating process can be advantageously applied to the substrates having been dry-etched, followed by ashing under severe conditions, without corrosion on metal layers and damage to an organic SOG layer formed thereon.
摘要:
A coating solution for forming an antireflective coating film making it possible to form a uniform coating film, which sustains an antireflective effect and shows no unevenness of coating or little surface discontinuity, even in a small application dose and thus ensuring the production of semiconductor devices at a low cost and a high efficiency. The coating solution for forming an antireflective coating film is one to be used for forming an anti-interference film on a resist film, characterized in that the coating solution gives a contact angle to the resist film of 15.degree. or below, when applied onto the resist film.