Electronic device including bent portion
A first board body includes a first board body upper main surface and a first board body lower main surface that are arranged in a vertical direction. A second board body includes a second board body upper main surface and a second board body lower main surface that are arranged in the vertical direction. The second board body is above the first board body such that the first board body upper main surface and the second board body lower main surface face each other. A semiconductor element is mounted on the first board body lower main surface. An antenna is provided on the second board body. A thickness of a metal plate is larger than a thickness of a first conductor pattern. The metal plate is surface-joined to the first board body upper main surface to overlap the semiconductor element.
1. An electronic device comprising:
a first board including a first board body and a first conductor pattern;
a second board including a second board body;
a semiconductor element;
an antenna;
a metal plate; and
at least one of a coupling portion and a connecting member; wherein
the first board body includes a first board body upper main surface and a first board body lower main surface that are arranged in a vertical direction;
the second board body includes a second board body upper main surface and a second board body lower main surface that are arranged in the vertical direction;
the second board body is above the first board body such that the first board body upper main surface and the second board body lower main surface face each other;
the semiconductor element is mounted on the first board body lower main surface;
the antenna is provided on the second board body;
a thickness of the metal plate is larger than a thickness of the first conductor pattern, and the metal plate is surface-joined to the first board body upper main surface to overlap the semiconductor element in the vertical direction; and
the first board body and the second board body are included in at least one resin board, and at least one of the first board body, the second board body, and the coupling portion is bent in the vertical direction so as to couple the first board body and the second board body to each other.
2. The electronic device according to claim 1 , wherein the metal plate overlaps the antenna in the vertical direction.
3. The electronic device according to claim 1 , wherein the first conductor pattern is provided on the first board body upper main surface, and the metal plate is electrically connected to the first conductor pattern.
4. The electronic device according to claim 3 , further comprising:
a connection conductor provided on the first conductor pattern; and
an insulating resin layer through which the metal plate is surface-joined to the first board body upper main surface; wherein
the metal plate is electrically connected to the first conductor pattern via the connection conductor.
5. The electronic device according to claim 3 , further comprising:
an anisotropic conductive film through which the metal plate is surface-joined to the first substrate body upper main surface and the metal plate is electrically connected to the first conductor pattern.
6. The electronic device according to claim 1 , further comprising:
a housing that supports one of the first board and the second board; and
a support that supports the other of the first board and the second board and is supported by the housing.
7. The electronic device according to claim 1 , further comprising:
a spacer provided between the second board body lower main surface and the metal plate.
8. The electronic device according to claim 1 , further comprising:
a metal component electrically connected to the metal plate.
9. The electronic device according to claim 1 , wherein the antenna is electrically connected to the semiconductor element.
10. The electronic device according to claim 1 , wherein the semiconductor element is an RFIC.
11. The electronic device according to claim 10 , wherein the antenna is operable to emit a transmission signal output by the semiconductor element as an electromagnetic wave or the antenna is operable to output a received electromagnetic wave to the semiconductor element as a reception signal.
12. The electronic device according to claim 1 , wherein the metal plate is connected to a ground potential.
13. The electronic device according to claim 1 , wherein the electronic device is a mobile communication terminal.
14. The electronic device according to claim 1 , wherein a thickness of the coupling portion is less than a thickness of the first board and the second board.
15. The electronic device according to claim 1 , wherein a plurality of electronic components in addition to the semiconductor element are mounted on the first board body lower main surface.
16. The electronic device according to claim 1 , wherein a plurality of antennas as provided in addition to the antenna.
17. The electronic device according to claim 16 , wherein the plurality of antennas are electrically connected to the semiconductor element.
18. The electronic device according to claim 16 , wherein the plurality of antennas are patch antennas.
19. The electronic device according to claim 16 , wherein the plurality of antennas are square or substantially square.