| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic-component mounting board in which an electronic component can be placed on an electronic-component mounting part in a short time and with satisfactory accuracy, which reduces the deviation in the direction of rotation of the mounted electronic component, and in which the mounting position of the electronic component can be confirmed in a short time and precisely. <P>SOLUTION: The electronic-component mounting board is provided with a group of a plurality of marks 2 which are formed in two corners of the electronic-component mounting part 1b by a printing method nearly symmetrically to the center line F, and in which the plurality of nearly quadrangular marks 2 are arranged by surrounding each nearly quadrangular center height 2b with each recess 2a having a nearly definite width. Three or more rows C of the group of the marks 2 formed at prescribed intervals along each side parallel to the center line F on the mounting part 1b are directed to the center line F, in such a way that sides on one side of the plurality of marks 2 become nearly parallel to the sides parallel to the center line F in the mounting part 1b. The rows C are formed so as to be deviated to a direction parallel to the center line F by nearly definite interval each shorter than the sides of one side, in such a way that they are away from the sides nearly perpendicular to the center line F on the mounting part 1b when they are directed to the center line F. <P>COPYRIGHT: (C)2003,JPO |
