| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a printed-circuit board having a high positioning accuracy with a self alignment function without lowering a general versatility, and capable of providing a solder wettability to a peripheral circumference of a connecting terminal of an electronic element with its movement restricted. <P>SOLUTION: The printed-circuit board 10 is provided with a land 12 for mounting with the connecting terminal 15 of the electronic element 11 press contacted and mounted on the surface of an insulating material. The land 12 for mounting comprises two land parts 20 for mounting symmetrical to a central axis line A. Each of the land parts 20 for mounting has a narrow portion N with its width size narrowest on an identical line R perpendicular to the central axis line A, and both the narrow portions N provide the mounting position of the connecting terminal 15 so that the peripheral circumference portion 19 of the connecting terminal portion 15 is superimposed on the orthogonal line R. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
