Television apparatus, semiconductor package, and electronic device
View Patent ↗According to one embodiment, a television apparatus includes a circuit board, a conductive portion, and an easily broken portion. The circuit board is mounted with an electronic component. The conductive portion is located on a surface or the inside of the circuit board. A breakage detection mechanism detects breakage of the conductive portion by conduction. The easily broken portion is provided to at least part of the conductive portion. The easily broken portion is broken easier than other portions of the conductive portion when a stress is applied to the circuit board.
1. An electronic device comprising:
a circuit board on which an electronic component is mounted;
a conductive portion located on a surface or an inside of the circuit board whose breakage is configured to be detected by conduction; and
an easily broken portion provided to at least part of the conductive portion, the easily broken portion configured to be broken easier than other portions of the conductive portion when a stress is applied to the circuit board, wherein
the circuit board comprises a plurality of insulating layers stacked one on top of another,
the conductive portion comprises small conductive portions configured to pass through the insulating layers adjacent to one another in a thickness direction of the circuit board, respectively, and overlap in the thickness direction, and
the easily broken portion is a stepped portion formed at a boundary between an adjacent pair of the small conductive portions.
2. The electronic device of claim 1 , wherein the easily broken portion is located in a center of the circuit board in the thickness direction of the circuit board.
3. The electronic device of claim 1 , wherein the easily broken portion is located at an end of the circuit board in the thickness direction of the circuit board.
4. The electronic device of claim 1 , wherein the conductive portion is located adjacent to a pad to which a terminal of the electronic component is connected.
5. The electronic device of claim 1 , wherein the conductive portion is located to face an end of the electronic component.
6. An electronic device comprising:
a circuit board on which an electronic component is mounted;
a conductive portion located on a surface or an inside of the circuit board whose breakage is configured to be detected by conduction; and
an easily broken portion provided to at least part of the conductive portion, the easily broken portion configured to be broken easier than other portions of the conductive portion when a stress is applied to the circuit board, wherein
the circuit board comprises a plurality of insulating layers stacked one on top of another,
the conductive portion comprises small conductive portions configured to pass through the insulating layers adjacent to one another in a thickness direction of the circuit board, respectively, and overlap in the thickness direction as being shifted from one another, and
the easily broken portion is a boundary between an adjacent pair of the small conductive portions.
7. An electronic device comprising:
a circuit board on which an electronic component is mounted;
a conductive portion located on a surface or an inside of the circuit board whose breakage is configured to be detected by conduction; and
an easily broken portion provided to at least part of the conductive portion, the easily broken portion configured to be broken easier than other portions of the conductive portion when a stress is applied to the circuit board, wherein
the circuit board comprises a plurality of insulating layers stacked one on top of another,
the conductive portion comprises
a through portion configured to at least partly pass through the insulating layers in a thickness direction of the circuit board, and
an inner layer formed along a surface of the insulating layers, the inner layer configured to be connected to the through portion by conduction, and
the easily broken portion is a boundary between the through portion and the inner layer.