Patent ID: 8616267

Claim:
A fluid-cooled heat sink assembly comprising: a heat exchanger comprising a first plate having opposed first and second faces, and a second plate having opposed first and second faces, the second face of the first plate being joined to the first face of the second plate at a perimeter of the first and second plates to form a closed channel, the first plate having an inlet and an outlet for cooling fluid in the channel and having a central area spaced inwardly and away from the perimeter of the first plate and located between opposite sides of the perimeter of the first plate; a stiffening element having a central portion and adjoining lateral portions on opposite sides of the central portion, the central portion being located inwardly and away from the lateral portions and having a contact surface positioned against the first face at the central area of the first plate, the stiffening element being formed as a single, unitary body; and an electronic component received against said second face of said second plate; wherein said stiffening element is attached to the electronic component at said lateral portions of said stiffening element so that said contact surface is pressed against the central area of the first face of the first plate and the electronic component is pressed against the second face of the second plate.