Semiconductor device packages with electromagnetic interference shielding
First Claim
1. A semiconductor package, comprising:
- a substrate including;
a first grounding ring, wherein a portion of the first grounding ring is exposed at a lateral periphery of the substrate;
a second grounding ring, wherein a portion of the second grounding ring is exposed at the lateral periphery of the substrate, and the first grounding ring overlies the second grounding ring; and
a dielectric disposed between the first grounding ring and the second grounding ring;
a die disposed adjacent to and electrically connected to the substrate;
an encapsulant disposed adjacent to the substrate and encapsulating the die, the encapsulant having exterior surfaces; and
a shield substantially covering the exterior surfaces of the encapsulant and connected to the exposed portion of the first grounding ring and the exposed portion of the second grounding ring to enhance reliability of electromagnetic interference shielding.
1 Assignment
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Accused Products
Abstract
Described herein are semiconductor device packages with EMI shielding and related methods. In one embodiment, a semiconductor device package includes a circuit substrate, an electronic device, an encapsulant, and a conductive coating. The circuit substrate includes a carrying surface, a bottom surface, a lateral surface extending between the carrying surface and the bottom surface, a conductive layer, and a grounding ring. The grounding ring is in a substantially continuous pattern extending along a border of the circuit substrate, is exposed at a lateral surface of the circuit substrate, and is included in the conductive layer. The electronic device is disposed adjacent to the carrying surface and is electrically connected to the conductive layer of the circuit substrate. The encapsulant is disposed adjacent to the carrying surface and encapsulates the electronic device. The conductive coating is applied to the encapsulant and the grounding ring.
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Citations
20 Claims
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1. A semiconductor package, comprising:
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a substrate including; a first grounding ring, wherein a portion of the first grounding ring is exposed at a lateral periphery of the substrate; a second grounding ring, wherein a portion of the second grounding ring is exposed at the lateral periphery of the substrate, and the first grounding ring overlies the second grounding ring; and a dielectric disposed between the first grounding ring and the second grounding ring; a die disposed adjacent to and electrically connected to the substrate; an encapsulant disposed adjacent to the substrate and encapsulating the die, the encapsulant having exterior surfaces; and a shield substantially covering the exterior surfaces of the encapsulant and connected to the exposed portion of the first grounding ring and the exposed portion of the second grounding ring to enhance reliability of electromagnetic interference shielding. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A semiconductor package, comprising:
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substrate including; an upper surface, a lower surface, and a side surface extending between the upper surface and the lower surface; a first conductive layer including a first internal grounding trace extending laterally to the side surface; a second conductive layer including a second internal grounding trace extending laterally to the side surface; and a dielectric separating the first conductive layer from the second conductive layer; a package body having a periphery, wherein a first portion of the periphery is disposed adjacent to the upper surface of the substrate and a second portion of the periphery faces away from the substrate; and an electromagnetic interference shield substantially covering the second portion of the periphery of the package body and the side surface of the substrate, wherein the electromagnetic interference shield contacts the first internal grounding trace and the second internal grounding trace at the side surface of the substrate to enhance reliability of electromagnetic interference shielding. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A semiconductor package comprising:
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a substrate including; a first grounding layer extending around a border of the substrate, wherein a portion of the first grounding layer is exposed at a lateral periphery of the substrate; a second grounding layer extending around the border of the substrate, wherein a portion of the second grounding layer is exposed at the lateral periphery of the substrate, and the first grounding layer is disposed above the second grounding layer; and a dielectric disposed between the first grounding layer and the second grounding layer; a package body disposed adjacent to the substrate; and a conductive shield circumscribing the package body and covering the exposed portions of the first grounding layer and the second grounding layer to enhance reliability of electromagnetic interference shielding. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification