Silican’s high quality nano silicon, the particle size is lower than 100nm and the purity is higher than 99.99%, can be manufactured with recycle and reuse of most by-product during nanomanufacturing processes. Compared to other current conventional nanomanufacturing, Silican is able to provide the more environmentally friend product without enhancing cost issue, losing high-quality and to fulfill the requirement of most of other relevant manufacturers by those excellent specification.