Patent ID: 6105661
Filing Date: 2000-08-22
Classification: H01L,Y10S

Abstract:
A cooling apparatus comprisinga duct including a nozzle plate through which a nozzle is bored so that a coolant is jetted through said nozzle and made to collide against an object to cool, and an inclined opposite plate which is disposed oppositely to said nozzle plate so as to make said coolant tend to said nozzle plate, anda resonance-preventing plate attached to an area of the inside surface of said opposite plate including the point at which an horizontal extension of said nozzle intersects the inside surface of said opposite plate so that the horizontal distance l m of said nozzle from the inside surface of said resonance-preventing plate is not equal toa resonance distance l.sub.0 =(1/2).multidot.{(c.multidot.d)/(.upsilon..multidot.u)} where c represents the speed of sound m/s in a stream of said coolant, d represents the diameter m of said nozzle, .upsilon. represents Strouhal number, and u represents the velocity m/s of said stream of said coolant jetted through said nozzle.