公开(公告)号：US09559111B2

公开(公告)日：2017-01-31

申请号：US14790969

申请日：2015-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongchul Yoo ,  Phil Ouk Nam ,  Junkyu Yang ,  Woong Lee ,  Woosung Lee ,  JinGyun Kim ,  Daehong Eom

IPC: H01L29/792 ,  H01L27/115 ,  H01L29/423

CPC classification number: H01L27/11582 ,  H01L27/1157 ,  H01L29/04 ,  H01L29/1037 ,  H01L29/42356 ,  H01L29/4236 ,  H01L29/42364 ,  H01L29/511 ,  H01L29/7926

Abstract: A three-dimensional (3D) semiconductor memory device and a method for fabricating the same, the device including insulating layers stacked on a substrate; horizontal structures between the insulating layers, the horizontal structures including gate electrodes, respectively; vertical structures penetrating the insulating layers and the horizontal structures, the vertical structures including semiconductor pillars, respectively; and epitaxial patterns, each of the epitaxial patterns being between the substrate and each of the vertical structures, wherein a minimum width of the epitaxial pattern is less than a width of a corresponding one of the vertical structures.

Abstract translation: 一种三维（3D）半导体存储器件及其制造方法，该器件包括堆叠在衬底上的绝缘层; 绝缘层之间的水平结构，分别包括栅电极的水平结构; 垂直结构分别穿透绝缘层和水平结构，垂直结构分别包括半导体柱; 和外延图案，每个外延图案在衬底和每个垂直结构之间，其中外延图案的最小宽度小于垂直结构中对应的一个的宽度。