Interfitting heat sink and heat spreader slug
AssigneeSun Microsystems, Inc.
InventorsDavid K. J. Kim, Barry Marshall, Ronald Barnes
Life of this patent
Estimating the term…
Abstract
A heat transmitting slug is attached to a chip or other heat emitting electronic component by an adhesive. A heat sink is mounted on the slug by one or more screws or other fasteners, preferably with thermal grease between the bottom of the heat sink base and the top of the slug. The top of the slug is formed with a longitudinal tongue and the base of the heat sink with a mating groove. Preferably the base of the heat sink is offset upwardly above the groove to resist tendency to fracture under stress.
Claims14
In combination, a heat slug having a top and bottom, said top and bottom being parallel and substantially flat, and a heat sink, said heat sink having a substantially flat base in thermal contact with said top of said slug, and a heat-emitting electronic component in thermal contact with said bottom of said slug, said slug being formed with a tapped hole and said base being formed with an aperture and a screw through said aperture threaded into said hole to detachably connect said heat sink to said heat slug.
Dependencies are inferred from the claim text.