摘要:
A semiconductor device and its manufacturing method are presented. The manufacturing method entails: providing a semiconductor substrate, wherein the semiconductor substrate comprises a first region and a second region that are mutually exclusive from one another, with a first oxide layer on the first and the second regions; conducting a nitriding process on the semiconductor substrate to form a nitride barrier layer on the first oxide layer on the first and the second regions; removing the first oxide layer on the second region; and conducting an oxidation process to form a second oxide layer on the second region.
摘要:
A photocurable composition contains a polymerizable compound; and a photopolymerization initiator, in which the photocurable composition contains a compound represented by General Formula (1) shown below as the polymerizable compound, and in which, in General Formula (1), Ar represents a monovalent aromatic group which may have a substituent, R1 represents an alkyl group which may have a substituent or a hydrogen atom, R2 represents an alkyl group having (m + n) valences which may have a substituent, m is an integer of 2 or more, and n is an integer of 1 or more.
摘要:
The present invention provides a pattern forming method which uses a resist underlayer film having resistance to a basic aqueous hydrogen peroxide solution. A pattern forming method comprising: a first step of applying a resist underlayer film-forming composition containing a solvent and a polymer having a weight average molecular weight of 1,000 to 100,000 and an epoxy group on a semiconductor substrate that may have an inorganic film on the surface, followed by baking, to form a resist underlayer film; a second step of forming a resist pattern on the resist underlayer film; a third step of dry etching the resist underlayer film using the resist pattern as a mask to expose a surface of the inorganic film or the semiconductor substrate; and a forth step of wet etching the inorganic film or the semiconductor substrate using the dry-etched resist underlayer film as a mask and a basic aqueous hydrogen peroxide solution.
摘要:
The invention relates to a method for patterning the surface of a substrate by self-assembly of block copolymers which includes the following steps: forming a first mask (20) defining at least two areas to be plated (21a, 21c) on the surface of the substrate; forming an assembly guide (23a) above the first mask (20), such that the assembly guide defines a surface covering two contact areas (22a, 22c) belonging respectively to the two areas to be plated (21a, 21c); depositing a block-copolymer layer on said surface; reorganising the block-copolymer layer; removing one of the phases (24) of the reorganised block-copolymer layer, resulting in a plurality of holes extending in the block-copolymer layer above the two contact areas (22a, 22c) and a portion of the first mask (20) arranged between the two contact areas (22a, 22c); widening the holes of the block-copolymer layer by etching, until a continuous trench (25a) is formed above the two contact areas (22a, 22c) and said portion of the first mask (20); transferring the continuous trench (25a) through the first mask (20) onto the surface of the substrate such as to form patterns that correspond to the contact areas (22a, 22c).
摘要:
The present invention provides a pattern forming method which uses a resist underlayer film having resistance to a basic aqueous hydrogen peroxide solution. A pattern forming method comprising: a first step of applying a resist underlayer film-forming composition containing a solvent and a polymer having a weight average molecular weight of 1,000 to 100,000 and an epoxy group on a semiconductor substrate that may have an inorganic film on the surface, followed by baking, to form a resist underlayer film; a second step of forming a resist pattern on the resist underlayer film; a third step of dry etching the resist underlayer film using the resist pattern as a mask to expose a surface of the inorganic film or the semiconductor substrate; and a forth step of wet etching the inorganic film or the semiconductor substrate using the dry-etched resist underlayer film as a mask and a basic aqueous hydrogen peroxide solution.