METHOD OF MANUFACTURING METAL SUBSTRATE

摘要

A metal substrate includes a first insulating substrate, a second insulating substrate, a first metal layer and a second metal layer. The first insulating substrate has a first modified surface and a second surface opposite to the first modified surface. The first metal layer faces the second surface. The second insulating substrate is bonded on the first modified surface, such that the first insulating substrate is between the second insulating substrate and the first metal layer. The second metal layer is disposed on a side of the second insulating substrate, such that the second insulating substrate is between the first modified surface and the second metal layer. An original surface roughness of the first modified surface has a variation substantially less than 10% after the first modified surface is released from the second insulating substrate.

主权项

1. A method of manufacturing a metal substrate, comprising:
providing a first single-sided substrate structure comprising a first insulating substrate and a first metal layer, wherein the first insulating substrate has a first surface and a second surface opposite to the first surface and the second surface is between the first surface and the first metal layer; performing a first modification process on the first surface; providing a second single-sided substrate structure comprising a second insulating substrate and a second metal layer; and bonding the first single-sided substrate structure on the second single-sided substrate structure, wherein the second insulating substrate is between the first surface and the second metal layer, wherein each of the first insulating substrate and the second insulating substrate is made of a material selected from the group consisting of PI, PET, Teflon, LCP, PE, PP, PS, PVC, Nylon, acrylic resin, ABS, phenolic resin, epoxy resin, polyester, silicone, PU, PAI and a combination thereof, and the first surface has an original surface roughness, and the original surface roughness has a variation substantially less than 10% after the first surface is released from the second insulating substrate.