摘要:
A method of forming an insulating film which includes the steps of: dissolving in a solvent a first and second polymer which each comprise methylpolysiloxane as the main component and one of which has a weight average molecular weight at least 10 times that of the other to thereby prepare a chemical solution; applying the chemical solution to a semiconductor substrate to form a coating film; and heat-treating the coating film to thereby form an organosilicon oxide film. The weight-average molecular weight of the first polymer is preferably at least 100 times that of the second polymer. Thus, an insulating organosilicon oxide film having a low dielectric constant and high cracking resistance is formed from a coating fluid.
摘要:
A film-forming composition comprising: (A) at least one silane compound selected from the group consisting of a compound shown by the following formula (1), a compound shown by the following formula (2), and a compound shown by the following formula (3) and a hydrolysis condensate of these compounds: R2R3Si(OR1)2 (1) R2Si(OR1)3 (2) Si(OR1)4 (3) wherein R1, R2, and R3 individually represent a monovalent organic group, (B) a polyether shown by the formula (PEO)p—(PPO)q—(PEO)r, wherein PEO represents a polyethylene oxide unit, PPO represents a polypropylene oxide unit, p is a number of 2-200, q is a number of 20-80, and r is a number of 2-200, and (C) an organic solvent. The composition exhibits superior storage stability, is capable of producing a low-density film having a small relative dielectric constant, low water absorption properties, and small vacant space size, and is thus suitable as an interlayer dielectric material in the manufacture of semiconductor devices.
摘要:
A polyorganosiloxane-based composition for film formation which gives a film having low dielectric constant and high modulus of elasticity and useful as an interlayer insulating film in semiconductor devices and the like. The composition for film formation comprises: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of an alkali catalyst, at least one member selected from the group consisting of compounds (1) represented by RaSi (OR1)4−a (wherein R represents hydrogen, fluorine, or a monovalent organic group; R1 represents a monovalent organic group; and a Is an integer of 1 or 2), compounds (2) represented by Si(OR2)4 (wherein R2 represents a monovalent organic group), and compounds (3) represented by R3b(R4O)3−bSi—(R7)d—Si(OR5)3−cR6c [wherein R3 to R6 may be the same or different and each represent a monovalent organic group; b and c may be the same or different and each are an integer of 0 to 2; R7 represents oxygen, phenylene, or a group represented by —(CH2)n—, wherein n is an integer of 1 to 6; and d is 0 or 1]; and (B) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of a metal chelate compound catalyst, at least one member selected from the group consisting of the compounds (1), (2), and (3).
摘要:
A polyorganosiloxane-based composition for film formation which gives a film having low dielectric constant and high modulus of elasticity and useful as an interlayer insulating film in semiconductor devices and the like. The composition for film formation comprises: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of an alkali catalyst, at least one member selected from the group consisting of compounds (1) represented by RaSi(OR1)4−a (wherein R represents hydrogen, fluorine, or a monovalent organic group; R1 represents a monovalent organic group; and a Is an integer of 1 or 2), compounds (2) represented by Si(OR2)4 (wherein R2 represents a monovalent organic group), and compounds (3) represented by R3b(R4O)3−bSi—(R7)d—Si(OR5)3−cR6c [wherein R3 to R6 may be the same or different and each represent a monovalent organic group; b and c may be the same or different and each are an integer of 0 to 2; R7 represents oxygen, phenylene, or a group represented by —(CH2)n—, wherein n is an integer of 1 to 6; and d is 0 or 1]; and (B) a product of hydrolysis and condensation obtained by hydrolyzing and condensing, in the presence of an acid catalyst, at least one member selected from the group consisting of the compounds (1), (2), and (3).
摘要:
A method for the formation of a silica film which comprises treating a film in a supercritical medium, the film comprising (A) a siloxane compound and (B) at least one member selected from the group consisting of (B-1) a compound compatible with or dispersible in ingredient (A) and having a boiling or decomposition temperature of from 150 to 500° C. and (B-2) a surfactant. The silica film has excellent mechanical strength showing a dielectric constant of generally 2.2 or lower, and hence is useful as a dielectric film in semiconductor devices and the like.
摘要:
A composition for film formation capable of forming a silica-based coating film having low water absorption and dielectric constant of 2.1 or lower and useful as an interlayer insulating film material in semiconductor devices, etc. The composition contains: (A) a product of hydrolysis and condensation obtained by hydrolyzing and condensing at least one silane compound selected from the group consisting of compounds represented by formula (1), compounds represented by formula (2), and compounds represented by formula (3) in the presence of a basic catalyst and water, RaSi(OR1)4−a (1) wherein R represents a hydrogen atom, a fluorine atom, or a monovalent organic group, R1 represents a monovalent organic group, and a is an integer of 1 or 2, Si(OR2)4 (2) wherein R2 represents a monovalent organic group, R3b(R4O)3−bSi—(R7)d—Si(OR5)3−cR6c (3) wherein R3 to R6 may be the same or different and each represents a monovalent organic group, b and c may be the same or different and each is a number of 0 to 2, R7 represents an oxygen atom, a phenylene group, or a group represented by —(CH2)n—, wherein n is an integer of 1 to 6, and d is 0 or 1; (B) a compound compatible with or dispersible in ingredient (A) and having a boiling point or decomposition temperature of from 250 to 450° C.; and (C) an organic solvent.
摘要:
A process for producing a polymer includes mixing (A) a polysiloxane compound and (B) a polycarbosilane compound in the presence of a catalyst, water, and an organic solvent, and heating the mixture.
摘要:
A method of forming an organic silica film capable of efficiently curing a coating at a lower dose of electron beams in a shorter time at a lower temperature and forming a film which may be suitably used as an interlayer dielectric for semiconductor devices and the like and exhibits a low relative dielectric constant and excellent mechanical strength, adhesion, plasma resistance, and chemical resistance, a film-forming composition used for the method, an organic silica film obtained by the method, a wiring structure including the organic silica film, and a semiconductor device including the wiring structure. A method of forming an organic silica film according to the invention includes forming a coating including a silicon compound having an —Si—O—Si— structure and an —Si—CH2—Si— structure on a substrate, heating the coating, and curing the coating by applying electron beams.
摘要:
An insulating-film-forming composition including an organic solvent and a hydrolysis-condensation product which is obtained by hydrolysis and condensation of a component (A) in the presence of a component (B).
摘要:
An insulating-film-forming composition including an organic solvent and a hydrolysis-condensation product which is obtained by hydrolysis and condensation of a component (A) in the presence of a component (B).