multicrystalline cylindrical structure Solar Wafer Resistivity ( O .cm ) :0.5-2 Life time of minority carrier ( μ S ): ≥ 2 Wafer Thickness ( μ m ):325 ( ± 20 ) Dimension available for solar wafers: 100mmx100mm, 125mmx125mm, 150mmx150mm, 155mmx155mm