Photoelectric conversion module
View Patent ↗A photoelectric conversion module includes a circuit board including a plurality of first board-side electrodes and a plurality of second board-side electrodes that are alternately arranged on a mounting surface of the circuit board in an array direction and each extend into strips in a direction orthogonal to the array direction, a photoelectric conversion array element mounted on the circuit board and including, on a surface facing the mounting surface, a plurality of light receiving/emitting portions, first element-side electrodes connected to the first board-side electrodes and second element-side electrodes connected to the second board-side electrodes, and an IC chip mounted on the circuit board. The circuit board further includes, on the mounting surface, a connecting portion for connecting the first board-side electrodes to each other and a first electrode land portion connected to the first board-side electrode or the connecting portion to contact with a first test electrode probe.
1. A photoelectric conversion module, comprising:
a circuit board comprising a plurality of first board-side electrodes and a plurality of second board-side electrodes that are alternately arranged on a mounting surface of the circuit board in an array direction and each extend into strips in a direction orthogonal to the array direction;
a photoelectric conversion array element mounted on the circuit board and comprising, on a surface facing the mounting surface, a plurality of light receiving/emitting portions, first element-side electrodes connected to the first board-side electrodes and second element-side electrodes connected to the second board-side electrodes, the first element-side electrodes and the second element-side electrodes being each formed corresponding to the light receiving/emitting portions; and
an IC chip mounted on the circuit board and connected to the photoelectric conversion array element through the first board-side electrodes and the second board-side electrodes,
wherein the circuit board further comprises, on the mounting surface, a connecting portion for connecting the first board-side electrodes to each other and a first electrode land portion integrally connected to the first board-side electrode such that the land portion extends a width of a portion of a first side electrode to contact with a first test electrode probe.
2. The photoelectric conversion module according to claim 1 , wherein the first electrode land portion is connected to an end one of the first board-side electrodes in the array direction and located nearer the IC chip in relation to a center of the strip first board-side electrodes.
3. The photoelectric conversion module according to claim 1 , wherein the second board-side electrodes each comprises a second electrode land portion wider than another portion thereof to contact with a second test electrode probe.
4. The photoelectric conversion module according to claim 1 , the connecting portion is distant from an end of the photoelectric conversion array element not facing the IC chip in the strip direction of the first board-side electrodes to have an opening therebetween.
5. The photoelectric conversion module according to claim 1 , wherein the photoelectric conversion array element comprises a light-emitting element.
6. The photoelectric conversion module according to claim 1 , wherein the plurality of second board-side electrodes are devoid of a connecting portion.
7. The photoelectric conversion module according to claim 1 , further comprising: an optical waveguide including grooves.
8. The photoelectric conversion module according to claim 7 , wherein each of the grooves accommodates an optical fiber.
9. The photoelectric conversion module, according to claim 7 , further comprising:
a mirror member,
wherein the optical waveguide member and the mirror member are provided on a surface opposite to the mounting surface of the circuit board.
10. The photoelectric conversion module, according to claim 9 , wherein an optical path extending between the photoelectric conversion array element and the optical fiber penetrates the circuit board.
11. The photoelectric conversion module, according to claim 10 , wherein the circuit board includes a translucent film.
12. The photoelectric conversion module, according to claim 1 , wherein the connecting portion is distant from an edge of the photoelectric conversion array element and a gap opens outside of the photoelectric conversion array element.