Patent ID: 6952347

Claim:
A power module comprising in combination: a carrier body ( 2 ) made of an electrically insulating and heat conducting material, said carrier body having a top surface ( 14 ) and a bottom surface ( 15 ), an electric circuit arrangement ( 6 ) including at least one electronic component ( 5 ) secured to said top surface ( 14 ) of said carrier body ( 2 ) and a conductor structure ( 7 ) directly formed on said top surface ( 14 ) of said carrier body to form said electric circuit arrangement ( 6 ), a plurality of frustum shaped cooling members ( 4 ) formed integrally with said bottom surface ( 15 ) and of the same material as said carrier body ( 2 ), and wherein said frustum shaped cooling members ( 4 ) are arranged in spaced and staggered rows ( 17 ) thereby forming longitudinal and crosswise coolant flow channels ( 18 ), each of said frustum shaped cooling members ( 4 ) having slanted surfaces slanting away from said bottom surface ( 15 ) so that said coolant flow channels ( 18 ) widen away from said bottom surface ( 15 ) for guiding coolant away from said bottom surface ( 15 ) for an efficient heat transport.