公开(公告)号：US09257441B2

公开(公告)日：2016-02-09

申请号：US14082657

申请日：2013-11-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung Ho Kim ,  Daehyun Jang ,  Myoungbum Lee ,  Kihyun Hwang ,  Sangryol Yang ,  Yong-Hoon Son ,  Ju-Eun Kim ,  Sunghae Lee ,  Dongwoo Kim ,  JinGyun Kim

IPC: H01L29/76 ,  H01L27/115 ,  H01L29/792 ,  H01L21/02

CPC classification number: H01L27/11582 ,  H01L21/02675 ,  H01L21/30604 ,  H01L21/324 ,  H01L27/11551 ,  H01L27/11578 ,  H01L29/7926

Abstract: Methods of forming semiconductor devices may be provided. A method of forming a semiconductor device may include patterning first and second material layers to form a first through region exposing a substrate. The method may include forming a first semiconductor layer in the first through region on the substrate and on sidewalls of the first and second material layers. In some embodiments, the method may include forming a buried layer filling the first through region on the first semiconductor layer. In some embodiments, the method may include removing a portion of the buried layer to form a second through region between the sidewalls of the first and second material layers. Moreover, the method may include forming a second semiconductor layer in the second through region.