Abstract: A semiconductor device trimming method or apparatus is proposed for use with a semiconductor device which includes at least a regular cell array, a spare cell array, a fuse array, and a spare decoder. In the method or apparatus, a trimming table is prepared which lists all address modes of address signals for row or column address lines to be replaced in the regular cell array and the blow mode of the fuse array corresponding to each of the address modes. Then, fuses are selectively blown in the fuse array according to the blow mode corresponding to row or column lines of which the selection has been inhibited in the regular cell array in accordance with the trimming table. The spare decoder inhibits selection of cells in the regular cell array and permit selection of cells on the spare lines in the spare cell array in order to replace the inhibited row or column lines in the regular cell array.

Abstract: An apparatus and method for generating a laser trimming program without causing errors due to development by human hands in a time that does not depend on experiences etc. of a person who generates a program, as well as a recording medium on which a program for execution of such a method is recorded and a laser trimming apparatus using such a program. Fuse coordinate calculation programs are stored in advance in a coordinate calculation program database on a memory core basis and a common portion of an LT program is stored in advance in a common program database. At the time of generating an LT program, type information of a memory core incorporated in a target IC chip is input and a corresponding fuse coordinate calculation program is selected from the fuse coordinate calculation programs stored in the coordinate calculation program database and then loaded.

Abstract: A semiconductor device trimming method or apparatus is proposed for use with a semiconductor device which includes at least a regular cell array, a spare cell array, a fuse array, and a spare decoder. In the method or apparatus, a trimming table is prepared which lists all address modes of address signals for row or column address lines to be replaced in the regular cell array and the blow mode of the fuse array corresponding to each of the address modes. Then, fuses are selectively blown in the fuse array according to the blow mode corresponding to row or column lines of which the selection has been inhibited in the regular cell array in accordance with the trimming table. The spare decoder inhibits selection of cells in the regular cell array and permit selection of cells on the spare lines in the spare cell array in order to replace the inhibited row or column lines in the regular cell array.

Abstract: An apparatus and method for generating a laser trimming program without causing errors due to development by human hands in a time that does not depend on experiences etc. of a person who generates a program, as well as a recording medium on which a program for execution of such a method is recorded and a laser trimming apparatus using such a program. Fuse coordinate calculation programs are stored in advance in a coordinate calculation program database on a memory core basis and a common portion of an LT program is stored in advance in a common program database. At the time of generating an LT program, type information of a memory core incorporated in a target IC chip is input and a corresponding fuse coordinate calculation program is selected from the fuse coordinate calculation programs stored in the coordinate calculation program database and then loaded.