Metal substrate and method of manufacturing the same

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 metal substrate, comprising:
a first insulating substrate having a first modified surface and a second surface opposite to the first modified surface, wherein the first modified surface has a surface energy between 15 and 25 dyne/cm; a first metal layer laminating on the second surface; a second insulating substrate having two sides opposite to each other, and one of the two sides of the second insulating substrate bonding on the first modified surface, such that the first insulating substrate is between the second insulating substrate and the first metal layer; and a second metal layer disposed on the other of the two sides of the second insulating substrate, such that the second insulating substrate is between the first modified 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 polyimide (PI), polyethylene terephthalate (PET), Teflon, liquid crystal polymer (LCP), polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), Nylon (polyamide), acrylic resin, acrylonitrile-butadiene-styrene (ABS), phenolic resin, epoxy resin, polyester, silicone, polyurethane (PU), polyamide-imide (PAI) and a combination thereof, wherein the first modified surface is able to be released from the second insulating substrate.