Abstract: In various embodiments, high temperature printed circuit boards are disclosed. In one embodiment, a high temperature printed circuit board (PCB) comprises a first reinforced pre-impregnated layer and a second reinforced pre-impregnated layer. The first reinforced pre-impregnated layer and the second reinforced pre-impregnated layer comprise a plurality of glass fibers having a warp and a weft and impregnated with a polyimide high-temperature resin adhesive. A flexible metal-clad polyimide laminate material is located between the first reinforced pre-impregnated layer and the reinforced second pre-impregnated layer. The flexible metal-clad polyimide laminate material comprises a plurality of conductive traces. A polyimide film is disposed over the first pre-impregnated layer and the second pre-impregnated layer.