H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 7/20 (2006.01) G05B 19/42 (2006.01)
Patent
CA 2212943
Methods for making thermally cooled electronic cards are disclosed. The method comprises providing a card (2, 3i) of any kind to be covered with a rigid heat sink (1) shaped to fit and attached to the card (2, 3i), and forming said heat sink (1) in such a way that it fits as closely as possible the shape of the printed circuit (2) having components (3i) on one or both sides thereof, whereby the surface thermal coupling between the sink (1) and the card (2, 3i) may be increased, by means of an optical sensor which preferably operates with a laser beam. Such a heat sink may thus be manufactured more quickly.
L'invention concerne les procédés de fabrication des cartes électroniques à refroidissement thermique. En partant d'une carte (2, 3i) quelconque, devant être recouverte d'un drain thermique rigide (1) adapté à la carte (2, 3i) et fixé sur cette carte, elle consiste à réaliser ce drain thermique (1) suivant un procédé lui permettant d'épouser au plus près le circuit imprimé (2) équipé de composants (3i), sur une ou sur les deux faces du circuit imprimé (2), pour permettre d'augmenter le couplage thermique surfacique entre le drain (1) et la carte (2, 3i), en utilisant un capteur optique, de préférence fonctionnant à partir d'un faisceau laser. Elle permet d'augmenter la rapidité de fabrication d'un tel drain.
Aldon Jean-Claude
Begnis Noel
Suppa Vito
Goudreau Gage Dubuc
Thomson-Csf
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