Copper-based IMS-embedded radiating substrate and preparation method thereof
A heat-dissipating substrate and copper-based technology, which is used in circuit thermal devices, printed circuit manufacturing, printed circuit components, etc., can solve the difficulty of processing aluminum nitride ceramic substrates, high costs, and the inability to achieve graphics on the surface of embedded copper blocks. question
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[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0040] like Figure 1-3 As shown, a heat dissipation substrate embedded with a copper-based IMS includes a substrate and a copper-based insulating board. The substrate includes a first FR4 inner layer board, an adhesive sheet 4, and a second FR4 inner layer board from top to bottom. The substrate is provided with a through slot, the copper-based insulating board is embedded in the slot, the upper surface of the copper-based insulating board is flat with the upper surface of the substrate, and the lower surface of the copper-based insulating board is flat with the lower surface of the substrate; the copper-based insulating board and the lower surface of the substrate are flat; A...
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