SANDWICH EPI CHANNEL FOR DEVICE ENHANCEMENT
    13.
    发明申请
    SANDWICH EPI CHANNEL FOR DEVICE ENHANCEMENT 有权
    用于设备增强的SANDWICH EPI通道

    公开(公告)号:US20150263092A1

    公开(公告)日:2015-09-17

    申请号:US14205911

    申请日:2014-03-12

    Abstract: The present disclosure relates to a method of forming a transistor device having a channel region comprising a sandwich film stack with a plurality of different layers that improve device performance, and an associated apparatus. In some embodiments, the method is performed by selectively etching a semiconductor substrate to form a recess along a top surface of the semiconductor substrate. A sandwich film stack having a plurality of nested layers is formed within the recess. At least two of the nested layers include different materials that improve different aspects of the performance of the transistor device. A gate structure is formed over the sandwich film stack. The gate structure controls the flow of charge carriers in a channel region having the sandwich film stack, which is laterally positioned between a source region and a drain region disposed within the semiconductor substrate.

    Abstract translation: 本公开涉及一种形成晶体管器件的方法,该晶体管器件具有沟道区域,该沟道区域包括具有提高器件性能的多个不同层的夹层膜堆叠以及相关联的器件。 在一些实施例中,通过选择性地蚀刻半导体衬底以沿着半导体衬底的顶表面形成凹槽来执行该方法。 在凹部内形成具有多个嵌套层的夹层膜叠层。 至少两个嵌套层包括改善晶体管器件性能的不同方面的不同材料。 在三明治薄膜叠层上形成栅极结构。 栅极结构控制具有夹层膜堆叠的沟道区域中的载流子的流动,其横向地位于设置在半导体衬底内的源极区域和漏极区域之间。

    Shallow Trench Isolation Structure
    17.
    发明申请
    Shallow Trench Isolation Structure 有权
    浅沟槽隔离结构

    公开(公告)号:US20150243653A1

    公开(公告)日:2015-08-27

    申请号:US14189155

    申请日:2014-02-25

    Abstract: A semiconductor device includes a semiconductor substrate, an active region and a trench isolation. The active region is formed in the semiconductor substrate. The trench isolation is disposed adjacent to the active region. The trench isolation includes a lower portion and an upper portion. The upper portion is located on the lower portion. The upper portion has a width gradually decreased from a junction between the upper portion and the lower portion toward a top of the trench isolation. In a method for fabricating the semiconductor device, at first, the semiconductor substrate is etched to form a trench in the semiconductor substrate. Then, an insulator fills the trench to form the trench isolation. Thereafter, the gate structure is formed on the semiconductor substrate. Then, the semiconductor substrate is etched to form a recess adjacent to the trench isolation. Thereafter, at least one doped epitaxial layer grows in the recess.

    Abstract translation: 半导体器件包括半导体衬底,有源区和沟槽隔离。 在半导体衬底中形成有源区。 沟槽隔离设置在有源区附近。 沟槽隔离包括下部和上部。 上部位于下部。 上部具有从上部和下部之间的接合部朝向沟槽隔离的顶部逐渐减小的宽度。 在制造半导体器件的方法中,首先蚀刻半导体衬底以在半导体衬底中形成沟槽。 然后,绝缘体填充沟槽以形成沟槽隔离。 此后,在半导体衬底上形成栅极结构。 然后,蚀刻半导体衬底以形成与沟槽隔离相邻的凹部。 此后,至少一个掺杂的外延层在凹槽中生长。

    Semiconductor device and method of manufacturing the same

    公开(公告)号:US12159921B2

    公开(公告)日:2024-12-03

    申请号:US17881317

    申请日:2022-08-04

    Abstract: A semiconductor device includes: first and second fin structures, disposed on a substrate, that respectively extend in parallel to an axis; a first gate feature that traverses the first fin structure to overlay a central portion of the first fin structure; a second gate feature that traverses the second fin structure to overlay a central portion of the second fin structure; a first spacer comprising: a first portion comprising two layers that respectively extend from sidewalls of the first gate feature toward opposite directions of the axis; and a second portion comprising two layers that respectively extend from sidewalls of the first portion of the first spacer toward the opposite directions of the axis; and a second spacer comprising two layers that respectively extend from sidewalls of the second gate feature toward the opposite directions of the axis.

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