Module including a grooved shield film
A module includes a substrate including a first surface, a first component mounted on the first surface, at least a part of a surface of which on a side distant from the substrate is covered with a first conductive film, a sealing resin arranged to cover the first surface and the first component, and a shield film that covers at least a part of a surface of the sealing resin on the side distant from the substrate. The shield film includes a first shield portion superimposed on at least a part of the first conductive film and a second shield portion. The first shield portion is isolated from the second shield portion by a groove that divides the shield film and is provided to such a depth as entering the sealing resin. The first shield portion is electrically independent.
1. A module comprising:
a substrate including a first surface;
a first component mounted on the first surface, wherein at least a part of a surface of the first component on a side distant from the substrate in a direction perpendicular to the first surface is covered with a first conductive film;
a sealing resin arranged to cover the first surface and the first component; and
a shield film covering at least a part of a surface of the sealing resin on the side distant from the substrate in the direction perpendicular to the first surface, wherein
the shield film includes a first shield portion superimposed on at least a part of the first conductive film when viewed in the direction perpendicular to the first surface and a second shield portion different from the first shield portion, the first shield portion is isolated from the second shield portion by a groove dividing the shield film and provided to such a depth as entering the sealing resin, and the first shield portion is electrically independent.
2. The module according to claim 1 , wherein
when viewed in the direction perpendicular to the first surface, the groove is arranged to surround the first component.
3. The module according to claim 1 , wherein
the groove is in such a tapered shape as decreasing in width toward a deeper portion.
4. The module according to claim 1 , wherein
each of the first shield portion and the second shield portion includes a portion covering a part of a side surface of the groove.
5. The module according to claim 1 , further comprising a second component mounted on the first surface, wherein at least a part of a surface of the second component on the side distant from the substrate is covered with a second conductive film, wherein
an upper surface of the first component is located more distant from the first surface than an upper surface of the second component.
6. The module according to claim 2 , wherein
the groove is in such a tapered shape as decreasing in width toward a deeper portion.
7. The module according to claim 2 , wherein
each of the first shield portion and the second shield portion includes a portion covering a part of a side surface of the groove.
8. The module according to claim 3 , wherein
each of the first shield portion and the second shield portion includes a portion covering a part of a side surface of the groove.
9. The module according to claim 2 , further comprising a second component mounted on the first surface, wherein at least a part of a surface of the second component on the side distant from the substrate is covered with a second conductive film, wherein
an upper surface of the first component is located more distant from the first surface than an upper surface of the second component.
10. The module according to claim 3 , further comprising a second component mounted on the first surface, wherein at least a part of a surface of the second component on the side distant from the substrate is covered with a second conductive film, wherein
an upper surface of the first component is located more distant from the first surface than an upper surface of the second component.
11. The module according to claim 4 , further comprising a second component mounted on the first surface, wherein at least a part of a surface of the second component on the side distant from the substrate is covered with a second conductive film, wherein
an upper surface of the first component is located more distant from the first surface than an upper surface of the second component.