| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed circuit board base material to be divided for manufacturing several non-rectangular printed circuit boards by which several printed circuit boards having no distortion in their outline form can be manufactured when it is split along its splitting lines. SOLUTION: Several slits 70, 80 and 90 are arranged in line along splitting lines for dividing the printed circuit board base material 10 into several printed circuit boards 20a, 20b, 20c and 20d, and several V-shaped grooves 50a and 50b are formed. Circular bores 100, 110, 120 and 130 are formed in positions where the V-shaped grooves 50a and 50b intersect with the slits 70 and 90 out of the several arranged slits 70, 80 and 90 in line at an angle to them. COPYRIGHT: (C)2008,JPO&INPIT
|
