摘要:
There is disclosed a coated-type silicon-containing film stripping process for stripping off to remove a coated-type silicon-containing film obtained by coating a silicon-containing film composition used in a lithography on a substrate, comprising, at least: a first step of treating the silicon-containing film with an acidic stripping solution containing sulphate ion and/or fluoride ion; and a second step of treating the silicon-containing film with an alkaline stripping solution containing a nitrogen compound. There can be provided a process for allowing a silicon-containing film, which has not been conventionally removed unless dry stripping is adopted, to be removed by a stripping process based on a stripping solution (wet stripping).
摘要:
A thermosetting silicon-containing film-forming composition for forming a silicon-containing film to be formed in a multi-layer resist process used in lithography, the composition including at least: (A) a silicon-containing compound obtained by hydrolysis-condensation of a hydrolyzable silicon compound and compound(s) selected from the group consisting of a hydrolyzable silicon compound and a reactive compound; (B) a thermal crosslinking accelerator; (C) an organic acid with one, or two or more valency having 1 to 30 carbon atoms; and (D) an organic solvent.
摘要:
There is disclosed a thermosetting metal oxide-containing film-forming composition for forming a metal oxide-containing film to be formed in a multilayer resist process used in lithography, the thermosetting metal oxide-containing film-forming composition comprising, at least: (A) a metal oxide-containing compound obtained by hydrolytic condensation of a hydrolyzable silicon compound and a hydrolyzable metal compound; (B) a thermal crosslinking accelerator; (C) a monovalent, divalent, or higher organic acid having 1 to 30 carbon atoms; (D) a trivalent or higher alcohol; and (E) an organic solvent. There can be provided a metal oxide-containing film-forming composition in a multi-layer resist process, in a manner that a film made of the composition allows for formation of an excellent pattern of a photoresist film, the composition is capable of forming a metal oxide-containing film as an etching mask having an excellent dry etching resistance, the composition is excellent in storage stability, and the film made of the composition is removable by a solution used in a removal process; a metal oxide-containing film-formed substrate; and a pattern forming process.
摘要:
Provided is a porous-film-forming composition containing silicon-oxide-based fine particles and a polysiloxane compound obtained by hydrolysis and condensation reactions, in the presence of an acid catalyst, of a hydrolyzable silane compound containing at least one tetrafunctional alkoxysilane compound represented by the following formula (1): Si(OR1)4 (1) wherein, R1s may be the same or different and each independently represents a linear or branched C1-4 alkyl group and/or at least one alkoxysilane compound represented by the following formula (2): R2nSi(OR3)4-n (2) wherein, R2(s) may be the same or different when there are plural R2s and each independently represents a linear or branched C1-8 alkyl group, R3(s) may be the same or different when there are plural R3s and each independently represents a linear or branched C1-4 alkyl group, and n is an integer from 1 to 3 in the reaction mixture containing a large excess of water.
摘要:
The present invention provides a composition for film formation which can form a porous film that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that is easily thinned; a porous film and a method for forming the same, and a high-performing and highly reliable semiconductor device which contains the porous film inside. More specifically, the composition for forming a porous film comprises a solution containing an amorphous polymer which is obtained by hydrolyzing and condensing at least one silane compound expressed by the general formula (R1)nSi(OR2)4-n, and a zeolite sol which is formed by using a quaternary ammonium hydroxide. The method for forming a porous film comprises a coating step for coating the composition for forming a porous film; a subsequent drying step; and a porousness forming step.
摘要:
The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that can be easily thinned; a composition for film formation; a porous film and a method for forming the same; and a high-performing and highly reliable semiconductor device which contains this porous film inside. More specifically, the zeolite sol is prepared by hydrolyzing and decomposing a silane compound expressed by a general formula: Si(OR1)4 (wherein R1 represents a straight-chain or branched alkyl group having 1 to 4 carbons, and when there is more than one R1, the R1s can be independent and the same as or different from each other) in a conventional coating solution for forming a porous film in the presence of a structure-directing agent and a basic catalyst; and then by heating the silane compound at a temperature of 75° C. or lower. A composition for forming a porous film which contains this zeolite sol is used.
摘要:
The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that can be easily thinned; a composition for film formation; a porous film and a method for forming the same; and a high-performing and highly reliable semiconductor device which contains this porous film inside. More specifically, the zeolite sol is prepared by hydrolyzing and decomposing a silane compound expressed by a general formula: Si(OR1)4 (wherein R1 represents a straight-chain or branched alkyl group having 1 to 4 carbons, and when there is more than one R1, the R1s can be independent and the same as or different from each other) in a conventional coating solution for forming a porous film in the presence of a structure-directing agent and a basic catalyst; and then by heating the silane compound at a temperature of 75° C. or lower. A composition for forming a porous film which contains this zeolite sol is used.
摘要:
The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that can be easily thinned; a composition for film formation; a porous film and a method for forming the same; and a high-performing and highly reliable semiconductor device which contains this porous film inside. More specifically, the zeolite sol is prepared by hydrolyzing and decomposing a silane compound expressed by a general formula: Si(OR1)4 (wherein R1 represents a straight-chain or branched alkyl group having 1 to 4 carbons, and when there is more than one R1, the R1s can be independent and the same as or different from each other) in a conventional coating solution for forming a porous film in the presence of a structure-directing agent and a basic catalyst; and then by heating the silane compound at a temperature of 75° C. or lower. A composition for forming a porous film which contains this zeolite sol is used.
摘要:
A digital trimming circuit is used to produce a stable time reference signal. This type of reference time signal can be used in equipment, such as watches, which have motors and acoustic outputs that interfere with producing the time reference signal. A basic oscillation frequency, which is produced by an oscillator circuit, is frequency divided to form the generic time reference signal. The digital trimming circuit generates a control signal to shorten the period of the time reference signal by predetermined amounts based on correction data. The control signal is in the form of pulses which can be dispersively applied to create substantially equal intervals between pulses during one time period of the time reference time signal. While maintaining the necessary digital trimming amount in one digital trimming time period, an expansion/reduction amount of the time reference signal is suppressed at one digital trimming time instant. Therefore, interference between the digital trimming timing and the predetermined output timing can be avoided.
摘要:
The invention provides a composition for forming a silicon-containing resist underlayer film comprising: (A) a silicon-containing compound obtained by a hydrolysis-condensation reaction of a mixture containing, at least, one or more hydrolysable silicon compound shown by the following general formula (1) and one or more hydrolysable compound shown by the following general formula (2), and (B) a silicon-containing compound obtained by a hydrolysis-condensation reaction of a mixture containing, at least, one or more hydrolysable silicon compound shown by the following general formula (3) and one or more hydrolysable silicon compound shown by the following general formula (4). There can be provided a composition for forming a resist underlayer film applicable not only to a resist pattern obtained in a negative development but also to a resist pattern obtained in a conventional positive development, and a patterning process using this composition R1m1R2m2R3m3Si(OR)(4-m1-m2-m3) (1) U(OR4)m4(OR5)m5 (2) R6m6R7m7R8m8Si(OR9)(4-m6-m7-m8) (3) Si(OR10)4 (4).