A method is provided for manufacturing a magnetoresistive device substructure. The method continues with the DS processing module determining a base key identifier based on the access request and determining content specific information based on the access request. Each fork assembly comprises a pair of spaced-apart legs and an axle. The separation of the two circular lenses R1, R2 and the distance from the circular lens to the first hexapole S1 is chosen in such a way that the internal plane of S1 comes to rest in the front principal focus of the circular lens that is positioned downstream and the center of the hexapoles S2 and S3 is located on the focal plane. Characterized by using a liquid crystalline polymer for the formation of coverlay over flexible regions, the all-layer processing method has the advantage of preventing interlayer delamination, thereby providing a highly reliable rigid-flexible PCB which thus meets the recent requirements of electric appliances for low energy consumption, high frequency adoption, and slimness. A fast FPLD-to-ROM conversion method is also disclosed.