Patent ID: 8370790

Claim:
A computer aided design system of a device used in the printed circuit board layout system for checking dimensions of patterns, the device comprises at least one hardware processor and a storage system; the computer aided design system comprises one or more programs, the one or more programs stored in the storage system, executable by the at least one processor, the one or more programs comprising: an interface creating module adapted to create a user interface on a screen of the device to display a design with a plurality of patterns; a selecting module adapted to select one of the patterns; a filling module adapted to draw a plurality of filled lines in the selected pattern; and a measuring module adapted to measure whether the length of each of the plurality of the filled lines is at least a predetermined width value, if the length of one of the filled lines is less than the predetermined width value, the dimension of the selected pattern covered by the filled line the length of which is less than the predetermined width value is unqualified, the measuring module also adapted to highlight the filled lines which is less than the predetermined width value.