US 12,293,963 B2
Wiring substrate and electronic device
Yoshiki Kawazu, Kyoto (JP); and Tomoya Kon, Kyoto (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 18/013,131
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Jun. 28, 2021, PCT No. PCT/JP2021/024325
§ 371(c)(1), (2) Date Dec. 27, 2022,
PCT Pub. No. WO2022/004644, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2020-111235 (JP), filed on Jun. 29, 2020.
Prior Publication US 2023/0307331 A1, Sep. 28, 2023
Int. Cl. H01L 23/498 (2006.01); H01L 31/02 (2006.01); H01S 5/023 (2021.01); H01L 31/0203 (2014.01)
CPC H01L 23/49811 (2013.01) [H01L 31/02005 (2013.01); H01S 5/023 (2021.01); H01L 31/0203 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wiring substrate comprising:
a substrate having a first surface;
a ground conductor on the first surface;
a signal conductor on the first surface;
a plurality of first lead terminals each in contact with the ground conductor; and
a plurality of second lead terminals each in contact with the signal conductor and aligned with the plurality of first lead terminals,
wherein in plan view, the plurality of second lead terminals as a pair are arranged so as to be aligned with one another with the first lead terminals as a pair interposed therebetween,
wherein each of the plurality of first lead terminals include:
a first end on the substrate in plan perspective view toward the first surface,
a second end not on the substrate in the plan perspective view but at a position on an extension from the first end,
a contacting part including the first end and in contact with the ground conductor,
a connecting part including:
a first bend away from the first end across the contacting part, and
a second bend closer to the second end than the first bend, and
a lead part connected to the second bend and extending to the second end,
wherein the connecting part includes:
a short-distance part having a shorter distance to the plurality of second lead terminals than the contacting part in the plan view toward the first surface,
a first tapered part between the contacting part and the short-distance part, and the first tapered part widening toward the second end, and
a second tapered part closer to the second end than the first tapered part, the second tapered part narrowing toward the second end,
wherein at the second tapered part, a first side of each of the plurality of first lead terminals facing an adjacent one of the plurality of second lead terminals is a straight line along a direction from the first end to the second end, and
wherein at the second tapered part, a second side of each of the plurality of first lead terminals facing an adjacent one of the plurality of first lead terminals is inclined with respect to the direction from the first end to the second end.