High thermal conductivity metal substrate and manufacturing method thereof
A technology of metal substrate and manufacturing method, which is applied in the directions of printed circuit manufacturing, printed circuit components, electrical components, etc. features, etc.
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Embodiment 1
[0074] On each side of a porous LCP film with a thickness of 50μm and a porosity of 50%, a 15μm thick cyanate ester thermal conductive glue with a thermal conductivity of 4.0W / mK is coated on each side. After heating and baking, the LCP is reinforced The prepreg of the material: Coat a layer of 40μm thick epoxy thermal conductive glue with a thermal conductivity of 2.0W / mK on the roughened surface of the 35μm copper foil. After heating and baking, the glued copper foil is obtained, according to the glued copper foil / LCP prepreg / coated copper foil laminated structure for lamination, the specific structure is as figure 2 , The above-mentioned prepared laminated blank material is sandwiched between two mirror stainless steel plates, and then put into the laminator, at a temperature of 200℃, a pressure of 4MPa, and a pressing time of 90 minutes to obtain a high thermal conductivity metal substrate .
Embodiment 2
[0076] Coat each side of a porous LCP film with a thickness of 50μm and a porosity of 70% with a thickness of 15μm with the above-mentioned cyanate ester thermal conductive glue with a thermal conductivity of 4.0W / mK. After heating and baking, the LCP is reinforced The prepreg of the material: Coat a layer of 40μm thick epoxy thermal conductive glue with a thermal conductivity of 2.0W / mK on the roughened surface of the 35μm copper foil. After heating and baking, the glued copper foil is obtained, according to the glued copper foil / LCP prepreg / coated copper foil laminated structure for lamination, the specific structure is as figure 2 , The above-mentioned prepared laminated blank material is sandwiched between two mirror stainless steel plates, and then put into the laminator, at a temperature of 200℃, a pressure of 4MPa, and a pressing time of 90 minutes to obtain a high thermal conductivity metal substrate .
Embodiment 3
[0078] Coat each side of the porous LCP film with a thickness of 50μm and porosity of 90% with a thickness of 15μm with the above-mentioned cyanate ester thermal conductive glue with a thermal conductivity of 4.0W / mK. After heating and baking, the LCP is reinforced The prepreg of the material: Coat a layer of 40μm thick epoxy thermal conductive glue with a thermal conductivity of 2.0W / mK on the roughened surface of the 35μm copper foil. After heating and baking, the glued copper foil is obtained, according to the glued copper foil / LCP prepreg / coated copper foil laminated structure for lamination, the specific structure is as figure 2 , The above-mentioned prepared laminated blank material is sandwiched between two mirror stainless steel plates, and then put into the laminator, at a temperature of 200℃, a pressure of 4MPa, and a pressing time of 90 minutes to obtain a high thermal conductivity metal substrate .
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