incorporation of ppm ( cm- ) oxygen into the silicon ingot. the oxygen itself is relatively benign but creates complexes with boron doping that degrades the carrier lifetime. , n-type ingots fabricated with phosphorous dopants have similar oxygen concentrations but do not show the degradation effect nor do wafers...
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cut from a single crystal of silicon (monocrystalline material) are easily textured to reduce reflection by etching pyramids on the wafer surface with a chemical solution. while such etching is ideal for monocrystalline cz wafers, it relies on the correct crystal orientation, and so is only marginally...
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of own unique technology advantages of silicon targets from mitsubishi materials documents takes an advantage of own unique technology mitsubishi materials and group companies have been manufacturing high purity polycrystalline silicon with the highest level in the world and also producing silicon wafers...