ultra-pure
Adjective
Meaning
ultra-pure (comparative more ultra-pure, superlative most ultra-pure)
Alternative form of ultrapure
Examples
The liquid used is typically ultra-pure, deionised water, which provides for a refractive index above that of the usual air gap between the lens and the wafer surface.
Silicon was chosen because a commercial infrastructure with mature processes for creating defect-free, ultra-pure monocrystalline silicon already exists to service the semiconductor industry.
If ultra-pure products are the goal, then further chemical separation must be applied.