Wiring board, mount structure, and method for manufacturing the same
View Patent ↗There is provided a wiring board including: a terminal group including a plurality of terminals arrayed along a specified array axis; and a pair of alignment marks disposed on opposite sides of the terminal group in the direction of the array axis. The alignment marks each have a first portion extending so as to intersect at an angle to the array axis. The first portions of the alignment marks and the plurality of terminals extend from the terminal group to a common phantom center point that is apart from the terminal group in the direction intersecting the array axis.
1. A wiring board comprising:
a terminal group including a plurality of terminals arrayed along a specified array axis; and
a pair of alignment marks disposed on opposite sides of the terminal group in the direction of the array axis, wherein
the alignment marks each have a first portion extending so as to intersect at an angle to the array axis; and
the first portions of the alignment marks and the plurality of terminals extend from the terminal group to a common phantom center point that is apart from the terminal group in the direction intersecting the array axis.
2. The wiring board according to claim 1 , wherein the alignment marks each have a second portion extending in parallel with the array axis.
3. The wiring board according to claim 1 , wherein the pair of alignment marks is arranged in axisymmetry about the symmetry axis that is perpendicular to the array axis and that passes through the phantom center point.
4. The wiring board according to claim 1 , wherein the pitch of the plurality of terminals is different from the pitch of the terminals formed on a mounting object in consideration of the expansion and contraction when the wiring board is mounted on the mounting object.
5. A mount structure in which a plurality of mounting-object-side terminals provided on a mounting object and a plurality of wiring-board-side terminals provided on a wiring board are electrically connected, wherein
the mounting object comprises:
a mounting-object-side terminal group including the plurality of mounting-object-side terminals arrayed along a mounting-object-side array axis; and
a pair of mounting-object-side alignment marks disposed on opposite sides of the mounting-object-side terminal group in the direction of the mounting-object-side array axis, wherein
the mounting-object-side alignment marks each have a first portion extending in the direction intersecting at an angle to the mounting-object-side array axis; and
the first portions of the mounting-object-side alignment marks and the plurality of mounting-object-side terminals extend from the mounting-object-side terminal group to a common mounting-object-side phantom center point that is apart from the mounting-object-side terminal group in the direction intersecting the mounting-object-side array axis;
the wiring board comprises:
a wiring-board-side terminal group including the plurality of wiring-board-side terminals arrayed along a wiring-board-side array axis; and
a pair of wiring-board-side alignment marks disposed on opposite sides of the wiring-board-side terminal group in the direction of the wiring-board-side array axis, wherein
the wiring-board-side alignment marks each have a first portion extending in the direction intersecting at an angle to the wiring-board-side array axis; and
the first portions of the wiring-board-side alignment marks and the plurality of wiring-board-side terminals extend from the wiring-board-side terminal group to a common wiring-board-side phantom center point that is apart from the wiring-board-side terminal group in the direction intersecting the wiring-board-side array axis;
the mounting-object-side array axis and the wiring-board-side array axis are parallel to each other;
the mounting-object-side phantom center point and the wiring-board-side phantom center point agree with each other;
the central axes of the plurality of mounting-object-side terminals and the central axes of the plurality of wiring-board-side terminals agree with each other, respectively; and
the central axes of the first portions of the pair of mounting-object-side alignment marks and the central axes of the first portions of the pair of wiring-board-side alignment marks agree with each other, respectively.
6. The mount structure according to claim 5 , wherein
the mounting-object-side alignment marks each have a second portion extending in parallel with the mounting-object-side array axis;
the wiring-board-side alignment marks each have a second portion extending in parallel with the wiring-board-side array axis; and
the central axis of the second portion of each mounting-object-side alignment mark and the central axis of the second portion of each wiring-board-side alignment mark are parallel to each other and displaced in the direction intersecting the central axes.
7. The mount structure according to claim 5 , wherein
the mounting-object-side alignment marks are arranged in axisymmetry about a mounting-object-side symmetry axis that is perpendicular to the mounting-object-side array axis and passes through the mounting-object-side phantom center point;
the wiring-board-side alignment marks are arranged in axisymmetry about a wiring-board-side symmetry axis that is perpendicular to the wiring-board-side array axis and passes through the wiring-board-side phantom center point; and
the mounting-object-side symmetry axis and the wiring-board-side symmetry axis agree with each other.
8. A method for manufacturing a mount structure in which a plurality of mounting-object-side terminals provided on a mounting object and a plurality of wiring-board-side terminals provided on a wiring board are electrically connected, the method comprising:
bringing the mounting-object-side array axis of a mounting-object-side terminal group and the wiring-board-side array axis of a wiring-board-side terminal group into agreement using second portions of mounting-object-side alignment marks and second portions of wiring-board-side alignment marks;
bringing the mounting-object-side symmetry axis of the mounting-object-side terminal group and the wiring-board-side symmetry axis of the wiring-board-side terminal group into agreement by relatively moving the wiring-board-side terminal group along the wiring-board-side array axis, with the mounting-object-side array axis and the wiring-board-side array axis agreed; and
bringing the central axes of first portions of the mounting-object-side alignment marks and the central axes of first portions of the wiring-board-side alignment marks into agreement by relatively moving the wiring-board-side terminal group along the wiring-board-side symmetry axis, with the mounting-object-side symmetry axis and the wiring-board-side symmetry axis agreed.