SD cards have the raw IC die buried in the PCB. If you crack open a cheap SanDisk card, you will see that it is a marvel of engineering. Instinctively one thi

SD cards have the raw IC die buried in the PCB. If you crack open a cheap SanDisk card, you will see that it is a marvel of engineering. Instinctively one thinks of advanced manufacturing as being reserved for high end goods, but in reality it is used widely in cheap mass produced things to bring the cost down.