公开(公告)号：US20190181048A1

公开(公告)日：2019-06-13

申请号：US16271522

申请日：2019-02-08

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chia-Pin LIN ,  Chien-Tai CHAN ,  Hsien-Chin LIN ,  Shyue-Shyh LIN

IPC: H01L21/8234 ,  H01L29/161 ,  H01L29/78 ,  H01L29/66 ,  H01L29/08 ,  H01L29/06 ,  H01L21/8238

CPC classification number: H01L21/823431 ,  H01L21/823412 ,  H01L21/823807 ,  H01L21/823821 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66795 ,  H01L29/7843 ,  H01L29/7846 ,  H01L29/7848 ,  H01L29/785 ,  H01L29/7851

Abstract: A method includes forming first and second fins of a finFET extending above a semiconductor substrate, with a shallow trench isolation (STI) region in between, and a distance between a top surface of the STI region and top surfaces of the first and second fins. First and second fin extensions are provided on top and side surfaces of the first and second fins above the top surface of the STI region. Material is removed from the STI region, to increase the distance between the top surface of the STI region and top surfaces of the first and second fins. A conformal stressor dielectric material is deposited over the fins and STI region. The conformal dielectric stressor material is reflowed, to flow into a space between the first and second fins above a top surface of the STI region, to apply stress to a channel of the finFET.

公开(公告)号：US20160204255A1

公开(公告)日：2016-07-14

申请号：US15076762

申请日：2016-03-22

Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.

Inventor： Chia-Pin LIN ,  Chien-Tai CHAN ,  Hsien-Chin LIN ,  Shyue-Shyh LIN

IPC: H01L29/78 ,  H01L29/165 ,  H01L29/161 ,  H01L29/06 ,  H01L29/08

CPC classification number: H01L21/823431 ,  H01L21/823412 ,  H01L21/823807 ,  H01L21/823821 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66795 ,  H01L29/7843 ,  H01L29/7846 ,  H01L29/7848 ,  H01L29/785 ,  H01L29/7851

Abstract: A method includes forming first and second fins of a finFET extending above a semiconductor substrate, with a shallow trench isolation (STI) region in between, and a distance between a top surface of the STI region and top surfaces of the first and second fins. First and second fin extensions are provided on top and side surfaces of the first and second fins above the top surface of the STI region. Material is removed from the STI region, to increase the distance between the top surface of the STI region and top surfaces of the first and second fins. A conformal stressor dielectric material is deposited over the fins and STI region. The conformal dielectric stressor material is reflowed, to flow into a space between the first and second fins above a top surface of the STI region, to apply stress to a channel of the finFET.

Abstract translation: 一种方法包括形成在半导体衬底之上延伸的finFET的第一和第二鳍片，其间具有浅沟槽隔离（STI）区域，以及STI区域的顶表面与第一鳍片和第二鳍片的顶表面之间的距离。 第一和第二鳍片延伸部分设置在STI区域顶表面上方的第一和第二鳍片的顶表面和侧表面上。 从STI区域去除材料，以增加STI区域的顶表面与第一和第二鳍片的顶表面之间的距离。 保形应力源电介质材料沉积在鳍片和STI区域上。 共形介电应力材料被回流，以流入STI区域的顶表面之上的第一和第二鳍片之间的空间，以向finFET的沟道施加应力。