专利名称 | Method for preparing GOI chip structure | 申请号 | US201213825010 | 专利类型 | US | 公开(公告)号 | US8877608(B2) | 公开(授权)日 | 2014.11.04 | 申请(专利权)人 | 中国科学院上海微系统与信息技术研究所 | 发明(设计)人 | Di Zengfeng;Ye Lin;Xue Zhongying;Zhang Miao | 主分类号 | H01L21/46 | IPC主分类号 | H01L21/46;H01L21/762 | 专利有效期 | Method for preparing GOI chip structure 至Method for preparing GOI chip structure | 法律状态 | 说明书摘要 | The present invention provides a method for preparing a GOI chip structure, where, in the method, first, a SiGe on insulator (SGOI) chip structure is made by using a SMART CUT technology, and then, germanium condensation technology is performed on the SGOI chip structure, so as to obtain a GOI chip structure. Because the SGOI made by the Smart-Cut technology basically has no misfit dislocation in an SGOI/BOX interface, the threading dislocation density of the GOI is finally reduced. A technique of the present invention is simple, the high-quality GOI chip structure can be implemented, and the germanium condensation technology is greatly improved. An ion implantation technology and an annealing technology are quite mature techniques in the current semiconductor industry, so that such a preparation method greatly improves the possibility of wide use of the germanium concentration technology in the semiconductor industry. |
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