Patent ID: 6937471

Claim:
A method comprising the steps of: operating a circuit which includes a heat-generating circuit component; guiding a two-phase coolant along a path which brings said coolant into direct physical contact with said circuit component so that said coolant absorbs heat from said circuit component, at least part of said coolant changing from a first phase to a second phase in response to heat absorbed from said circuit component, said second phase being different from said first phase, and said coolant being in a form other than a spray when said coolant moves into said direct physical contact with said circuit component; configuring said circuit to include a heat-generating further circuit component; carrying out said step of guiding said coolant so that a portion of said coolant flows along a further path which brings said portion of said coolant into direct physical contact with said further circuit component, said portion of said coolant absorbing heat from said further circuit component, and at least part of said portion of said coolant changing from said first phase to said second phase in response to heat absorbed from said further circuit component; providing two orifices; causing the two portions of said coolant which each contact a respective said circuit component to each flow through a respective said orifice prior to contact with the circuit component; and selecting a monolithic microwave integrated circuit to be said circuit component.