公开(公告)号：US10332890B2

公开(公告)日：2019-06-25

申请号：US15653198

申请日：2017-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kiseok Lee ,  Chan-Sic Yoon ,  Augustin Hong ,  Keunnam Kim ,  Dongoh Kim ,  Bong-Soo Kim ,  Jemin Park ,  Hoin Lee ,  Sungho Jang ,  Kiwook Jung ,  Yoosang Hwang

IPC: H01L27/108 ,  H01L27/24 ,  H01L27/22

Abstract: A method of manufacturing a semiconductor memory device and a semiconductor memory device, the method including providing a substrate that includes a cell array region and a peripheral circuit region; forming a mask pattern that covers the cell array region and exposes the peripheral circuit region; growing a semiconductor layer on the peripheral circuit region exposed by the mask pattern such that the semiconductor layer has a different lattice constant from the substrate; forming a buffer layer that covers the cell array region and exposes the semiconductor layer; forming a conductive layer that covers the buffer layer and the semiconductor layer; and patterning the conductive layer to form conductive lines on the cell array region and to form a gate electrode on the peripheral circuit region.

公开(公告)号：US11521977B2

公开(公告)日：2022-12-06

申请号：US17471824

申请日：2021-09-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kiseok Lee ,  Chan-Sic Yoon ,  Augustin Hong ,  Keunnam Kim ,  Dongoh Kim ,  Bong-Soo Kim ,  Jemin Park ,  Hoin Lee ,  Sungho Jang ,  Kiwook Jung ,  Yoosang Hwang

IPC: H01L27/108 ,  H01L27/24 ,  H01L27/22

Abstract: A method of manufacturing a semiconductor memory device and a semiconductor memory device, the method including providing a substrate that includes a cell array region and a peripheral circuit region; forming a mask pattern that covers the cell array region and exposes the peripheral circuit region; growing a semiconductor layer on the peripheral circuit region exposed by the mask pattern such that the semiconductor layer has a different lattice constant from the substrate; forming a buffer layer that covers the cell array region and exposes the semiconductor layer; forming a conductive layer that covers the buffer layer and the semiconductor layer; and patterning the conductive layer to form conductive lines on the cell array region and to form a gate electrode on the peripheral circuit region.

公开(公告)号：US20180175143A1

公开(公告)日：2018-06-21

申请号：US15833031

申请日：2017-12-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chan-sic YOON ,  Ki-seok Lee ,  Ki-wook Jung ,  Dong-oh Kim ,  Ho-in Lee ,  Je-min Park ,  Seok-han Park ,  Augustin Hong ,  Ju-yeon Jang ,  Hyeon-ok Jung ,  Yu-jin Seo

IPC: H01L29/06 ,  H01L27/092 ,  H01L21/762

CPC classification number: H01L29/0649 ,  H01L21/0206 ,  H01L21/30604 ,  H01L21/76224 ,  H01L21/823878 ,  H01L27/092 ,  H01L29/4236

Abstract: A semiconductor device including a substrate with a first trench, a first insulation liner on inner flanks of the first trench, and a second insulation liner on inner flanks of a first sub trench, the first insulation trench defined by the first insulation liner in the first trench, a top level of the second insulation liner that adjoins the inner flanks of the first sub trench in a direction perpendicular to a top surface of the substrate being different from the top surface of the substrate outside the first trench, may be provided.