This pneumaticservoloadsystemcansatisfy the needsofdouble-sidedpolishing machine, which can successfully produce the ultra-smooth and flat surface on both sides of silicon wafer.
Since they are built on to a flatwafer, rather than etched out of it, layers of vertical transistors could even be constructed on top of one another, raising the intriguing possibility of multi-storey semiconductors.
The truth is the ISP business is characterized by wafer-thin margins, low barriers to entry, flat-rate pricing, intense national competition and high customer support costs.