公开(公告)号：US20080187481A1

公开(公告)日：2008-08-07

申请号：US12100151

申请日：2008-04-09

申请人： Jameel Ibrahim ,  Melinda Gayle Ivey ,  Timothy Dinh Truong

发明人： Jameel Ibrahim ,  Melinda Gayle Ivey ,  Timothy Dinh Truong

IPC分类号： C01B33/02

CPC分类号： C01B33/027

摘要： A high-purity semiconductor grade granular silicon composition, which can be produced in commercial quantities, is disclosed. In one embodiment the composition comprises a plurality of free-flowing particles having a total weight of at least about 300 kg and an average transition metal concentration of less than 0.2 ppba. In another embodiment the composition comprises a plurality of free-flowing silicon particles having a total weight of at least about 300 kg and at least 99 percent of the particles are between about 250 and 3500 microns in size.

摘要翻译： 公开了可以商业量生产的高纯度半导体级粒状硅组合物。 在一个实施方案中，组合物包含多个自由流动的颗粒，其总重量为至少约300kg，平均过渡金属浓度小于0.2ppba。 在另一个实施方案中，组合物包含多个自由流动的硅颗粒，其总重量为至少约300kg，并且至少99％的颗粒的尺寸为约250至3500微米。