US 12,424,720 B2
Multilayer substrate and electronic device
Hironobu Takahashi, Nagaokakyo (JP); Fumiya Isono, Nagaokakyo (JP); and Kenji Matsuda, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Sep. 22, 2023, as Appl. No. 18/371,591.
Application 18/371,591 is a continuation of application No. PCT/JP2022/024462, filed on Jun. 20, 2022.
Claims priority of application No. 2021-106440 (JP), filed on Jun. 28, 2021.
Prior Publication US 2024/0014536 A1, Jan. 11, 2024
Int. Cl. H01P 3/08 (2006.01); H05K 1/02 (2006.01)
CPC H01P 3/08 (2013.01) [H05K 1/0219 (2013.01); H05K 1/028 (2013.01); H05K 2201/0723 (2013.01); H05K 2201/09609 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multilayer substrate comprising:
a multilayer body including a plurality of insulating layers laminated together, and a first main surface and a second main surface arranged in a laminating direction of the plurality of insulating layers;
a first metal foil layer provided in the multilayer body and including a main surface on which a plurality of streaks extending in a first direction, when viewed in the laminating direction, is provided; and
a second metal foil layer provided in the multilayer body and including a main surface on which a plurality of streaks extending in a second direction, which is different from the first direction, when viewed in the laminating direction, is provided; wherein
the multilayer body includes a first region in which the multilayer body is bent along a first bending line such that the first main surface is located farther on an outer peripheral side than the second main surface, and a second region in which the multilayer body is bent along a second bending line such that the first main surface is located farther on an inner peripheral side than the second main surface;
the second bending line is not parallel to the first bending line;
in the first region, the first metal foil layer is located farther on an outer peripheral side than a center of the multilayer body in the laminating direction;
in the second region, the second metal foil layer is located farther on the outer peripheral side than the center of the multilayer body in the laminating direction;
in a state in which the multilayer body is shown on a plane, when viewed in the laminating direction, an angle defined by the first direction and the first bending line is larger than an angle defined by the first direction and the second bending line; and
in a state in which the multilayer body is shown on a plane, when viewed in the laminating direction, an angle defined by the second direction and the second bending line is larger than an angle defined by the second direction and the first bending line.