Method of forming finFET of variable channel width
    16.
    发明授权
    Method of forming finFET of variable channel width 有权
    形成可变通道宽度的finFET的方法

    公开(公告)号:US08896067B2

    公开(公告)日:2014-11-25

    申请号:US13736111

    申请日:2013-01-08

    摘要: Embodiments of present invention provide a method of forming a first and a second group of fins on a substrate; covering a top first portion of the first and second groups of fins with a first dielectric material; covering a bottom second portion of the first and second groups of fins with a second dielectric material, the bottom second portion of the first group and the second group of fins having a same height; exposing a middle third portion of the first and second groups of fins to an oxidizing environment to create an oxide section that separates the top first portion from the bottom second portion of the first and second groups of fins; and forming one or more fin-type field-effect-transistors (FinFETs) using the top first portion of the first and second groups of fins as fins under gates of the one or more FinFETs.

    摘要翻译: 本发明的实施例提供一种在基板上形成第一组翅片和第二组翅片的方法; 用第一介电材料覆盖第一和第二组翅片的顶部第一部分; 用第二电介质材料覆盖第一和第二组翅片的底部第二部分,第一组的底部第二部分和具有相同高度的第二组翅片; 将第一组翅片和第二组翅片的中间第三部分暴露于氧化环境以产生将顶部第一部分与第一组翅片和第二组鳍片的底部第二部分分离的氧化物部分; 以及使用所述第一和第二组翅片的顶部第一部分在所述一个或多个FinFET的栅极下形成翅片形成一个或多个鳍状场效应晶体管(FinFET)。