Patent ID: 7286365

Claim:
An electronic substrate suitable for being included in a stack including said electronic substrate and another electronic substrate and suitable for being connected to the other electronic substrate and to an input-output interface, said electronic substrate comprising: a frame made of a material with a high thermal conductivity having a plurality of sides, a first side of said electronic substrate intending to be in contact with a corresponding side of the frame of another neighboring substrate so as to provide thermal dissipation of the electronic substrates and a second side of said electronic substrate comprising an interconnection element intended to provide electrical interconnection between said electronic substrate and the other electronic substrate by means of a routing circuit suitable for being matched according to the electrical interconnection and/or between said electronic substrate and the input-output interface, the frame having a bottom also having a material with a high thermal conductivity, wherein the bottom includes a phase-change cooling element; wherein said electronic substrate has conductive tracks and in that the interconnection element includes a first conductive element intended to be in contact with the tracks; wherein the interconnection element also includes a second conductive element intended to be connected to the routing circuit with a view to connecting this second conductive element to a conductive element of the interconnection element of the frame of the other neighboring electronic substrate.