In the ever-shrinking world of electronic devices, where miniaturization reigns supreme, a brand-new type of circuit board has emerged-- the flexible printed circuit card (versatile PCB), likewise called a flex circuit or flexible circuit card. Unlike its rigid relative, the common FR4 PCB, the flexible PCB boasts outstanding pliability, enabling https://perfectworld.wiki/wiki/HDI_PCBs_The_Foundation_of_Miniaturized_Electronics