Electronic assembly with an electromagnetic radiation shielding cap
First Claim
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1. An electronic cartridge comprising:
- an electronic cartridge substrate having primary and secondary opposed sides;
a first die coupled to the electronic cartridge substrate;
a thermally and electrically conductive heat plate located adjacent the primary side of the electronic cartridge substrate; and
an electromagnetic radiation shielding cap including an electromagnetic radiation shielding plate on the secondary side of the electronic cartridge substrate, and at least one member extending from the electromagnetic radiation shielding plate around a periphery of the electronic cartridge substrate and having an edge which contacts a surface of the heat plate and is defected by the surface of the heat plate.
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Abstract
According to the invention, an electromagnetic radiation shielding cap is located over an electronic cartridge substrate. The electromagnetic radiation shielding cap includes an electromagnetic radiation shielding plate and an electromagnetic radiation shielding rim extending around a periphery of the electronic cartridge substrate. An edge of the electromagnetic radiation shielding rim contacts a thermally and electrically conductive heat plate located on an opposing side of the electronic cartridge substrate. The heat plate and the electromagnetic radiation shielding cap jointly define an electromagnetic radiation shielding enclosure around the electronic cartridge substrate.
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Citations
15 Claims
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1. An electronic cartridge comprising:
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an electronic cartridge substrate having primary and secondary opposed sides;
a first die coupled to the electronic cartridge substrate;
a thermally and electrically conductive heat plate located adjacent the primary side of the electronic cartridge substrate; and
an electromagnetic radiation shielding cap including an electromagnetic radiation shielding plate on the secondary side of the electronic cartridge substrate, and at least one member extending from the electromagnetic radiation shielding plate around a periphery of the electronic cartridge substrate and having an edge which contacts a surface of the heat plate and is defected by the surface of the heat plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electronic cartridge comprising:
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an electronic cartridge substrate;
a plurality of edge finger connectors on a first periphery of the electronic cartridge substrate;
at least a first die mounted to the electronic cartridge substrate;
a thermally and electrically conductive heat plate secured to the electronic cartridge substrate on a side of the die opposing the electronic cartridge substrate and being thermally coupled to the first die;
an electromagnetic radiation shielding cap including an electromagnetic radiation shielding plate on a side of the electronic cartridge substrate opposing the first die, and an electromagnetic radiation shielding rim formed by members extending from the electromagnetic radiation shielding plate around a second, third, and fourth peripheries of the electronic cartridge substrate, each member having an edge contacting the thermally and electrically conductive heat plate; and
a cover over the electromagnetic radiation shielding cap, the cover including a protective portion next to the electromagnetic radiation shielding plate and a protective rim next to the electromagnetic radiation shielding rim, the cover being secured to the heat plate in a position wherein the cap is clamped between the thermally and electrically conductive heat plate and the protective portion so that the edges of the members are deflected towards the radiation shielding plate, an opening being defined over the first periphery of the electronics cartridge substrate.
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13. An electronic assembly comprising:
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a motherboard having a grounding layer;
a first connector on the motherboard; and
an electronic cartridge including;
an electronic cartridge substrate;
a second connector on the electronic cartridge substrate, the second connector being connected to the first connector;
a first die mounted to the electronic cartridge;
a thermally and electrically conductive heat plate located next to the first die and thermally coupled thereto; and
an electromagnetic radiation shielding cap having an electromagnetic radiation shielding plate on a side of the electronic cartridge substrate opposing the first die, and an electromagnetic radiation shielding rim formed by at least one member extending from the electromagnetic radiation shielding plate around a periphery of the substrate and having an edge which is deflected by the surface of the thermally and electrically conductive heat plate, the electromagnetic radiation shielding cap being electrically connected to the grounding layer of the motherboard. - View Dependent Claims (14)
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15. A method of assembling an electronic cartridge from:
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(i) an electronic cartridge substrate;
(ii) a die mounted to the electronic cartridge substrate;
(iii) a thermally and electrically conductive heat plate mounted to the electronic cartridge substrate, the heat plate being thermally coupled to the die; and
(iv) an electromagnetic radiation shielding cap having an electromagnetic radiation shielding plate, and an electromagnetic radiation shielding rim formed by at least one member extending from the electromagnetic radiation shielding plate, the method comprising;
(a) positioning the electromagnetic radiation shielding cap so that the electromagnetic radiation shielding plate is located on a side of the electronic cartridge substrate opposing the die, the member extends around a periphery of the electronic cartridge substrate, and an edge of the member contacts a surface of the heat plate; and
(b) deflecting the edge of the member by the surface of the heat plate.
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Specification