“…The key devices supporting the third and fourth industrial revolutions are various semiconductor and optoelectronic devices, and the manufacturing of these devices is based on a variety of single crystals, such as monocrystalline silicon, 6 sapphire, 7 lithium niobate, 8,9 silicon carbide, 10 etc. In manufacturing engineering, the larger the size of a wafer, the lower the unit cost of each wafer.…”