Patent ID: 6840311

Claim:
A compact thermosiphon assembly having a minimum package height and for dissipating heat generated by electronic components using a working fluid, said assembly comprising: a tube having a first end and a second end and a flat cross section defining an elongated chamber and defining a surface area extending between said ends; said chamber having an evaporation region for receiving heat to evaporate the working fluid into a vaporized working fluid within said chamber and a first condensation region for condensing the vaporized working fluid back into the liquefied working fluid within said chamber; a first portion of said first condensation region extending upwardly at a first angle from said evaporation region for conveying the condensed liquid back down into said evaporation region; and a second portion of said first condensation region extending upwardly at a second angle less than said first angle for maintaining said surface area throughout said condensation region and for minimizing the height of said assembly.