Patent ID: 9414485
Filing Date: 2016-08-09
CPC Classification: H05K,Y10T

Claim Text:
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 release layer bonding on the first modified surface, such that the first insulating substrate is between the release layer and the first metal layer; a second insulating substrate bonding on the other side of the release layer, such that the release layer is between the first modified surface and the second insulating substrate; and a second metal layer disposed on the other side of the second insulating substrate, such that the second insulating substrate is between the release layer 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.