US Patent No. 10,172,265

BOARD LEVEL SHIELD INCLUDING AN INTEGRATED HEAT SINK


Patent No. 10,172,265
Issue Date January 01, 2019
Title Board Level Shield Including An Integrated Heat Sink
Inventorship Timothy M. Wrona, Schaumburg, IL (US)
Gerald R. English, Glen Ellyn, IL (US)
Daniel Jacklinski, Schaumburg, IL (US)
Assignee LAIRD TECHNOLOGIES, INC., Chesterfield, MI (US)

Claim of US Patent No. 10,172,265

1. A shielding assembly comprising:a heat sink including a top, a bottom, and sides;
a board level shield including a fence and a lid, the fence including a perimeter of material around the sides of the heat sink, and the lid including a piece of material having a shape complementary to the perimeter of the fence, the lid being attachable to the fence to substantially enclose the top of the heat sink;
wherein:
the lid includes at least one perforation;
the heat sink includes a thermally conductive material having at least one pin on the top of the heat sink, where the at least one pin is a protrusion of the thermally conductive material from the heat sink; and
the at least one pin and the at least one perforation are complementary in shape such that when the lid is attached to the fence, the at least one pin at least partially protrudes through the at least one perforation;
wherein:
the lid comprises a top and a lid sidewall depending from and/or generally perpendicular to the top of the lid;
the lid sidewall substantially surrounds the fence when the lid is attached to the fence;
the fence comprises a fence sidewall and a rail;
the fence sidewall is generally perpendicular to the top of the heat sink;
the rail is generally parallel to the top of the heat sink; and
the rail meets the fence sidewall at a bend and proceeds from the fence sidewall towards the heat sink;
the lid sidewall further comprises a plurality of tabs that bend inward towards a concave portion of the lid and generally perpendicular to the lid sidewall; and
when the lid is attached to the fence, the plurality of tabs rests on the rail.