Molded body incorporating heat dissipator
AssigneeSGS-ATES Componenti Elettronici S.p.A.
InventorsGiuseppe Cossutta, Marino Cellai
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Abstract
A heat-dissipating metal bar to be imbedded in a molded body of plastic material, together with a punched metal foil forming an array of conductor strips to be soldered to a silicon chip, has a large exposed surface and is provided on its opposite surface with projections passing through cutouts in the foil. Upon the molding of the resinous body around the bar, portions of the foil and the silicon chip, one of the mold halves bears upon these projections while the other mold half comes to rest against the exposed bar surface which is thereby pressed into firm contact with that mold half to prevent the intrusion of any resin therebetween. The mold-closing pressure deforms the tips of the projections to help anchor the bar to the resinous body.
Claims8
A modular unit comprising a generally prismatic body of plastic material and a heat-dissipating metal block imbedded in said body, said block having a large exposed surface flush with a face of said body and being rigid with at least one solid projection of constant width extending within said body and terminating in a flat broadened tip flush with an opposite face of said body, said projection rising from a side of said block remote from said exposed surface thereof for anchoring said block to said body.
Dependencies are inferred from the claim text.