Abstract: Method of making a multilayer printed circuit including one or more thin film laminates having a circuit etched thereon without tearing, bending, or wrinkling the laminate during fabrication and which allows the use of standard multilayer etching and registration processes. The method involves the application of a low melting point plastic adhesive to a temporary backing for adhering a thin film laminate to the backing for etching and registration. A high melting point adhesive is then used to laminate an inner layer assembly to the thin film laminate/temporary backing assembly and the temporary backing removed by heating to the melting point of the plastic adhesive. The method can be used to make multilayer printed circuits or a circuit for a blasting cap for initiating the explosion of a secondary explosive.