Patent ID: 7827679
Filing Date: 2010-11-09
Classification: H05K,Y10T

Abstract:
1. A method of fabricating a thermal management circuit board comprises the steps of providing a heat sink material, providing tooling holes through said heat sink material, laminating a photoresist on at least one surface of said heat sink material, printing at least one image on said photoresist, developing said photoresist, chemically etching said surface of said heat sink material around said image and chemically stripping said photoresist leaving raised portions of said heat sink material in an area subscribed by said image at a plane above said chemically etched surface, thus constituting a heat sink; providing a prepreg and a circuit trace material, laminating said circuit trace material to said prepreg, laminating a photoresist on said circuit trace material, printing at least one circuit image on said photoresist, developing said photoresist, chemically etching said circuit trace material around said circuit image and chemically stripping said photoresist leaving an electronic circuit upon said prepreg in areas subscribed by said circuit image, thus constituting an electronic circuit board; providing apertures through said electronic circuit board corresponding in size and location to said raised portions of said heat sink, applying an electrically insulating material to said electronic circuit board and laminating said heat sink, said electrically insulating layer and said electronic circuit board together with heat and pressure.