公开(公告)号：US20150380312A1

公开(公告)日：2015-12-31

申请号：US14314425

申请日：2014-06-25

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Shin-Chi Chen ,  Chih-Yueh Li ,  Shui-Yen Lu ,  Chi-Mao Hsu ,  Yuan-Chi Pai ,  Yu-Hong Kuo ,  Nien-Ting Ho

IPC: H01L21/8238 ,  H01L21/28 ,  H01L29/423 ,  H01L21/311

CPC classification number: H01L21/82385 ,  H01L21/28026 ,  H01L21/28088 ,  H01L21/31111 ,  H01L21/31144 ,  H01L21/32139 ,  H01L21/823842 ,  H01L29/42376 ,  H01L29/66545

Abstract: A method of manufacturing a semiconductor device is provided. The method includes the following steps. A substrate including a first transistor having a first conductivity type, a second transistor having a second conductivity type and a third transistor having the first conductivity type is formed. An inner-layer dielectric layer is formed on the substrate, and includes a first gate trench corresponding to the first transistor, a second gate trench corresponding to the second transistor and a third gate trench corresponding to the third transistor. A work function metal layer is formed on the inner-layer dielectric layer. An anti-reflective layer is coated on the work function metal layer. The anti-reflective layer on the second transistor and on the top portion of the third gate trench is removed to expose the work function metal layer. The exposed work function metal layer is removed.

Abstract translation: 提供一种制造半导体器件的方法。 该方法包括以下步骤。 形成包括具有第一导电类型的第一晶体管，具有第二导电类型的第二晶体管和具有第一导电类型的第三晶体管的衬底。 内层电介质层形成在衬底上，并且包括对应于第一晶体管的第一栅极沟槽，对应于第二晶体管的第二栅极沟槽和对应于第三晶体管的第三栅极沟槽。 在内层电介质层上形成功函数金属层。 在功函数金属层上涂敷抗反射层。 去除第二晶体管上的抗反射层和第三栅极沟槽的顶部以暴露功函数金属层。 暴露的功能金属层被去除。

公开(公告)号：US09305847B2

公开(公告)日：2016-04-05

申请号：US14314425

申请日：2014-06-25

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Shin-Chi Chen ,  Chih-Yueh Li ,  Shui-Yen Lu ,  Chi-Mao Hsu ,  Yuan-Chi Pai ,  Yu-Hong Kuo ,  Nien-Ting Ho

IPC: H01L21/8238 ,  H01L21/28 ,  H01L21/311 ,  H01L29/423

CPC classification number: H01L21/82385 ,  H01L21/28026 ,  H01L21/28088 ,  H01L21/31111 ,  H01L21/31144 ,  H01L21/32139 ,  H01L21/823842 ,  H01L29/42376 ,  H01L29/66545

Abstract: A method of manufacturing a semiconductor device is provided. The method includes the following steps. A substrate including a first transistor having a first conductivity type, a second transistor having a second conductivity type and a third transistor having the first conductivity type is formed. An inner-layer dielectric layer is formed on the substrate, and includes a first gate trench corresponding to the first transistor, a second gate trench corresponding to the second transistor and a third gate trench corresponding to the third transistor. A work function metal layer is formed on the inner-layer dielectric layer. An anti-reflective layer is coated on the work function metal layer. The anti-reflective layer on the second transistor and on the top portion of the third gate trench is removed to expose the work function metal layer. The exposed work function metal layer is removed.

Abstract translation: 提供一种制造半导体器件的方法。 该方法包括以下步骤。 形成包括具有第一导电类型的第一晶体管，具有第二导电类型的第二晶体管和具有第一导电类型的第三晶体管的衬底。 内层电介质层形成在衬底上，并且包括对应于第一晶体管的第一栅极沟槽，对应于第二晶体管的第二栅极沟槽和对应于第三晶体管的第三栅极沟槽。 在内层电介质层上形成功函数金属层。 在功函数金属层上涂布抗反射层。 去除第二晶体管上的抗反射层和第三栅极沟槽的顶部以暴露功函数金属层。 暴露的功能金属层被去除。