公开(公告)号：US20150214345A1

公开(公告)日：2015-07-30

申请号：US14164368

申请日：2014-01-27

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Jing Wan ,  Jinping Liu ,  Churamani Gaire ,  Mariappan Hariharaputhiran ,  Andy Chih-Hung Wei ,  Bharat V. Krishnan ,  Cuiqin Xu ,  Michael Ganz

IPC: H01L29/735 ,  H01L29/66 ,  H01L29/88 ,  H01L29/73 ,  H01L21/306 ,  H01L29/161 ,  H01L29/06 ,  H01L29/51 ,  H01L21/02 ,  H01L21/265 ,  H01L29/78 ,  H01L29/16

CPC classification number: H01L29/66151 ,  H01L29/0653 ,  H01L29/1004 ,  H01L29/1079 ,  H01L29/1608 ,  H01L29/165 ,  H01L29/66242 ,  H01L29/66272 ,  H01L29/66636 ,  H01L29/66977 ,  H01L29/7311 ,  H01L29/732 ,  H01L29/7371 ,  H01L29/78 ,  H01L29/7848 ,  H01L29/88

Abstract: Approaches for isolating source and drain regions in an integrated circuit (IC) device (e.g., a metal-oxide-semiconductor field-effect transistor (MOSFET)) are provided. Specifically, the device comprises a gate structure formed over a substrate, a source and drain (S/D) embedded within the substrate adjacent the gate structure, and a liner layer (e.g., silicon-carbon) between the S/D and the substrate. In one approach, the liner layer is formed atop the S/D as well. As such, the liner layer formed in the junction prevents dopant diffusion from the source/drain.

Abstract translation: 提供了用于在集成电路（IC）器件（例如，金属氧化物半导体场效应晶体管（MOSFET））中隔离源极和漏极区域的方法。 具体地，该器件包括形成在衬底上的栅极结构，与栅极结构相邻嵌入在衬底内的源极和漏极（S / D）以及S / D和衬底之间的衬里层（例如，硅 - 碳） 。 在一种方法中，衬垫层也形成在S / D的顶部。 因此，形成在接合部中的衬垫层防止掺杂剂从源极/漏极扩散。