公开(公告)号：US09595466B2

公开(公告)日：2017-03-14

申请号：US14717740

申请日：2015-05-20

Applicant: APPLIED MATERIALS, INC.

Inventor： Xinyu Fu ,  Srinivas Gandikota ,  Mei Chang ,  Seshadri Ganguli ,  Guoqiang Jian ,  Yixiong Yang ,  Vikash Banthia ,  Jonathan Bakke

IPC: H01L21/44 ,  H01L21/768

CPC classification number: H01L21/76816 ,  H01L21/32135 ,  H01L21/76843 ,  H01L21/76865 ,  H01L21/76877 ,  H01L21/76879

Abstract: Methods for etching a substrate are provided herein. In some embodiments, a method for etching a substrate disposed within a processing volume of a process chamber includes: (a) exposing a first layer disposed atop the substrate to a first gas comprising tungsten chloride (WClx) for a first period of time and at a first pressure, wherein x is 5 or 6; (b) purging the processing volume of the first gas using an inert gas for a second period of time; (c) exposing the substrate to a hydrogen-containing gas for a third period of time to etch the first layer after purging the processing volume of the first gas; and (d) purging the processing volume of the hydrogen-containing gas using the inert gas for a fourth period of time.

Abstract translation: 本发明提供蚀刻基板的方法。 在一些实施例中，用于蚀刻设置在处理室的处理体积内的衬底的方法包括：（a）将设置在衬底顶部的第一层暴露于包含氯化钨（WClx）的第一气体第一时间段 第一压力，其中x为5或6; （b）使用惰性气体吹扫第一气体的处理量第二段; （c）在清洗第一气体的处理容积之后，将衬底暴露于含氢气体持续第三时间以蚀刻第一层; 和（d）使用惰性气体净化含氢气体的处理量第四个时间段。

公开(公告)号：US09947578B2

公开(公告)日：2018-04-17

申请号：US15358690

申请日：2016-11-22

Applicant: APPLIED MATERIALS, INC.

Inventor： Yu Lei ,  Vikash Banthia ,  Kai Wu ,  Xinyu Fu ,  Yi Xu ,  Kazuya Daito ,  Feiyue Ma ,  Pulkit Agarwal ,  Chi-Chou Lin ,  Dien-Yeh Wu ,  Guoqiang Jian ,  Wei V. Tang ,  Jonathan Bakke ,  Mei Chang ,  Sundar Ramamurthy

IPC: H01L21/4763 ,  H01L21/768 ,  C23C16/44 ,  C23C16/455 ,  C23C16/46 ,  C23C16/52 ,  H01L21/311 ,  C23C16/02 ,  C23C16/04 ,  C23C16/06 ,  C23C16/08 ,  C23C16/505 ,  C23C16/54

CPC classification number: H01L21/76843 ,  C23C16/0227 ,  C23C16/0281 ,  C23C16/045 ,  C23C16/06 ,  C23C16/08 ,  C23C16/4401 ,  C23C16/45536 ,  C23C16/45544 ,  C23C16/46 ,  C23C16/505 ,  C23C16/52 ,  C23C16/54 ,  H01L21/31116 ,  H01L21/76802 ,  H01L21/76877

Abstract: Methods for forming metal contacts having tungsten liner layers are provided herein. In some embodiments, a method of processing a substrate includes: exposing a substrate, within a first substrate process chamber, to a plasma formed from a first gas comprising a metal organic tungsten precursor gas or a fluorine-free tungsten halide precursor to deposit a tungsten liner layer, wherein the tungsten liner layer is deposited atop a dielectric layer and within a feature formed in a first surface of the dielectric layer of a substrate; transferring the substrate to a second substrate process chamber without exposing the substrate to atmosphere; and exposing the substrate to a second gas comprising a tungsten fluoride precursor to deposit a tungsten fill layer atop the tungsten liner layer.