Electronic assembly with an electromagnetic radiation shielding cap

An electronic cartridge comprising:

• 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 conductive 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 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.

An electronic assembly comprising:

• a motherboard;
• 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 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 and contacting the thermally conductive heat plate, the electromagnetic radiation shielding cap being electrically connected to the grounding layer of the main substrate.

A method of assembling an electronic cartridge from:

• (i) an electronic cartridge substrate;
• (ii) a die mounted to the electronic cartridge substrate;
• (iii) a thermally and electronically conductive heat plate mounted to the electronic cartridge substrate on a side of the electronic cartridge substrate opposing the die, 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 the 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 the heat plate;
• and
• (b) deflecting the edge of the member.