In some embodiments, the present application provides a method for manufacture a memory device. The method includes forming a multilayer stack including a first magnetic layer and a first dielectric layer and forming another magnetic layer. The multilayer stack and the another magnetic layer are tailored to meet dimensions of a package structure. The package structure includes a chip having a memory cell and an insulating material enveloping the chip, where an outer surface of the package structure comprises the insulating material. The tailored multilayer stack and the tailored another magnetic layer are attached to the outer surface of the package structure.