摘要:
A semiconductor device and a manufacturing method thereof are disclpsed, the semiconductor device comprising: a first conductive layer; an oxide layer formed upon the first conductive layer; a nitride layer composed of multiple sublayers formed upon the oxide layer; another oxide layer formed upon the nitride layer in the form of multiple sublayers; and a second conductive layer formed upon the structure obtained through the preceding steps. Due to the unique feature of the nitride layer composed of multiple sublayers, the electrical characteristics of the semiconductor device according to the present invention is improved, and the nitride layer according to the present invention is widely applicable to semiconductor devices.
摘要:
There is disclosed in the present invention a method for manufacturing a semiconductor device including an isolation region defined by trenches having different or equal widths respectively on a single semiconductor substrate comprising the steps of:forming insulating films on the semiconductor substrate and then forming an aperture on a passive region (isolation region);forming spacers of etch rate different from that of the insulating films on sidewalls of the aperture to define ring-shaped trench regions surrounding outline of active regions;forming another insulating film of etch rate different from that of the spacers on the substrate where the spacers are defined and removing the spacers by etching to expose the substrate within the etched spacers; andforming trenches on the exposed area of the substrate, forming an insulating film of equal character to that of the insulating films used at the time of the formation of the aperture to refill the trenches and forming the spacers on the sidewalls of the insulating film in the passive region, thereby forming ring-shaped trenches surrounding the outlines of the active regions to be an isolation region.
摘要:
Methods of forming masks. According to the methods, a target pattern is set. Generation of a side lobe caused by the target pattern is verified. A preliminary target pattern and a preliminary side lobe pattern are set, in the target pattern and a region where the side lobe is generated, respectively. An interference pattern map using the preliminary target pattern and the preliminary side lobe pattern is created. At least one of regions having a phase identical or opposite to that of a position of the preliminary target pattern in the interference pattern map is set to an interference auxiliary pattern. A mask using the interference auxiliary pattern and the target pattern is formed.
摘要:
Methods of forming masks. According to the methods, a target pattern is set. Generation of a side lobe caused by the target pattern is verified. A preliminary target pattern and a preliminary side lobe pattern are set, in the target pattern and a region where the side lobe is generated, respectively. An interference pattern map using the preliminary target pattern and the preliminary side lobe pattern is created. At least one of regions having a phase identical or opposite to that of a position of the preliminary target pattern in the interference pattern map is set to an interference auxiliary pattern. A mask using the interference auxiliary pattern and the target pattern is formed.