Semiconductor device
    91.
    发明授权

    公开(公告)号:US10411021B2

    公开(公告)日:2019-09-10

    申请号:US15897424

    申请日:2018-02-15

    摘要: A static random access memory (SRAM) device includes an inverter including a ninth first-conductivity-type semiconductor layer formed on a semiconductor substrate; a first pillar-shaped semiconductor layer which is formed on the semiconductor substrate and in which a first first-conductivity-type semiconductor layer, a first body region, a second first-conductivity-type semiconductor layer, a first second-conductivity-type semiconductor layer, a second body region, and a second second-conductivity-type semiconductor layer are formed from the substrate side in that order; a first gate insulating film formed around the first body region; a first gate formed around the first gate insulating film; a second gate insulating film formed around the second body region; a second gate formed around the second gate insulating film; and a first output terminal connected to the second first-conductivity-type semiconductor layer and the first second-conductivity-type semiconductor layer.

    Semiconductor device
    92.
    发明授权

    公开(公告)号:US10381451B2

    公开(公告)日:2019-08-13

    申请号:US15788353

    申请日:2017-10-19

    摘要: A semiconductor device includes a pillar-shaped semiconductor layer formed on a substrate; a first insulator surrounding the pillar-shaped semiconductor layer; a first gate surrounding the first insulator and made of a metal having a first work function; a second gate surrounding the first insulator and made of a metal having a second work function different from the first work function, the second gate being located below the first gate; a third gate surrounding the first insulator and made of a metal having the first work function, the third gate being located below the second gate; and a fourth gate surrounding the first insulator and made of a metal having the second work function different from the first work function, the fourth gate being located below the third gate. The first gate, the second gate, the third gate, and the fourth gate are electrically connected together.

    Method for producing semiconductor device

    公开(公告)号:US10186601B2

    公开(公告)日:2019-01-22

    申请号:US15342217

    申请日:2016-11-03

    摘要: A method for producing a semiconductor device includes a first step of forming a fin-shaped semiconductor layer on a semiconductor substrate and forming a first insulating film around the fin-shaped semiconductor layer; and a second step following the first step and including forming a second insulating film around the fin-shaped semiconductor layer, depositing a first polysilicon on the second insulating film to conduct planarization, forming a second resist for forming a gate line and a pillar-shaped semiconductor layer so that the second resist extends in a direction perpendicular to a direction in which the fin-shaped semiconductor layer extends, and etching the first polysilicon, the second insulating film, and the fin-shaped semiconductor layer to form a pillar-shaped semiconductor layer and a first dummy gate formed of the first polysilicon.