摘要:
A silicon-on-insulator (SOI) structure having a single crystal layer of a group III-V compound semiconductor material contacting a single crystal substrate of sapphire such that a principal surface of the single crystal layer establishes an intimate contact with a corresponding principal surface of the single crystal substrate and the single crystal layer, and the single crystal substrate are bonded with each other while elevating a temperature.
摘要:
A method for fabricating an SOI structure which includes the steps of contacting a single crystal layer of a group III-V compound semiconductor material to a single crystal substrate of sapphire such that a principal surface of said single crystal layer establishes an intimate contact with a corresponding principal surface of said single crystal substrate and bonding the single crystal layer and the single crystal substrate with each other while elevating a temperature.
摘要:
An apparatus and method for polishing a semiconductor wafer. A polisher includes a supporting plate having a conductive film and a polishing cloth formed on the conductive film of the supporting plate. The polishing cloth has a plurality of openings to expose the conductive film. A wafer holder has a conductive wafer holding surface to hold a semiconductor wafer having current detective patterns and an insulating film covering the current detective patterns. A polishing slurry supply device supplies a polishing slurry including ions to either the polishing cloth or the semiconductor wafer. A current detecting device, connected to the supporting plate and the wafer holder, detects a magnitude of a current flowing across the supporting plate and the wafer holder through the conductive wafer holding surface, the semiconductor wafer held by the wafer holder, the current detective patterns of the semiconductor wafer, the polishing slurry filled in the openings of the polishing cloth, and the conductive film.
摘要:
The method for fabricating the semiconductor device includes the step of forming a photoresist film 84 over a substrate 10, the step of exposing interconnection patterns to the photoresist film 84, the step of exposing to the photoresist film 84 hole patterns of a plurality of holes positioned at ends or bent portions of the interconnection patterns where holes to be connected to the interconnection patterns are to be formed, and the step of developing the photoresist film 84 with the interconnection patterns and the holes patterns exposed to. Thus, the insufficient exposure energy at the ends or the bent portions of the patterns due to optical proximity effect is compensated to prevent the shortening at the pattern ends or the rounding at the pattern bent portions. The contacts with the contact plugs connected to the pattern ends or the pattern bent portions can be ensured.
摘要:
In order to form a transfer pattern of desired size with high accuracy, a method for manufacturing a semiconductor device includes a process of forming the transfer pattern including a line whose width and angle varies, by performing multiple exposure using a plurality of masks having different patterns over different mask substrates.
摘要:
A mask formed with a mask pattern is prepared, the mask pattern having a shape that a base pattern is divided into at least two partial patterns disposed at a space narrower than a resolution limit. A first relation is acquired between a width of the space separating the partial patterns and a size of a pattern on a substrate formed by transferring the mask pattern. The width of the space separating the partial patterns is determined in accordance with the size of a pattern to be formed on the substrate and the first relation. A mask pattern is formed having at least two separated partial patterns on a mask in accordance with the determined width of the space.
摘要:
The method for fabricating the semiconductor device includes the step of forming a photoresist film 84 over a substrate 10, the step of exposing interconnection patterns to the photoresist film 84, the step of exposing to the photoresist film 84 hole patterns of a plurality of holes positioned at ends or bent portions of the interconnection patterns where holes to be connected to the interconnection patterns are to be formed, and the step of developing the photoresist film 84 with the interconnection patterns and the holes patterns exposed to. Thus, the insufficient exposure energy at the ends or the bent portions of the patterns due to optical proximity effect is compensated to prevent the shortening at the pattern ends or the rounding at the pattern bent portions. The contacts with the contact plugs connected to the pattern ends or the pattern bent portions can be ensured.
摘要:
A semiconductor manufacturing method is disclosed. The method includes a lithography process having an exposure step for projecting an image of a mask pattern of a mask onto a photo resist layer using exposure light. The mask pattern includes a first pattern having a light transparency characteristic corresponding to a circuit pattern, and a second pattern having an inverted light transparency characteristic arranged within and spaced apart from the first pattern.
摘要:
In a direct bonded SOI substrate where the SiO.sub.2 films OA, OB are respectively provided on the single surfaces of the silicon substrates A, B, at least any one of SiO.sub.2 films OA, OB has thickness of 1 .mu.m or more. These SiO.sub.2 films OA, OB are bonded and moreover the one silicon substrate B of such a bonded substrate is ground to thickness of about 1 .mu.m. A semiconductor device having a trench structure wherein the trench formed on the silicon substrate B passes through the interface between the SiO.sub.2 film OB and the SiO.sub.2 film OA. The bottom of such a trench is located within the SiO.sub.2 film OA and the bottom of the polycrystalline silicon conductive film within the trench is located within the SiO.sub.2 film OA rather than the interface between the silicon substrate B and SiO.sub.2 film OB.
摘要:
In order to form a transfer pattern of desired size with high accuracy, a method for manufacturing a semiconductor device includes a process of forming the transfer pattern including a line whose width and angle varies, by performing multiple exposure using a plurality of masks having different patterns over different mask substrates.