公开(公告)号：US11315787B2

公开(公告)日：2022-04-26

申请号：US16821759

申请日：2020-03-17

Applicant: Applied Materials, Inc.

Inventor： Tzu-shun Yang ,  Rui Cheng ,  Karthik Janakiraman ,  Zubin Huang ,  Diwakar Kedlaya ,  Meenakshi Gupta ,  Srinivas Guggilla ,  Yung-chen Lin ,  Hidetaka Oshio ,  Chao Li ,  Gene Lee

IPC: H01L21/033 ,  H01L21/311 ,  H01L21/3213

Abstract: The present disclosure provides forming nanostructures utilizing multiple patterning process with good profile control and feature transfer integrity. In one embodiment, a method for forming features on a substrate includes forming a mandrel layer on a substrate, conformally forming a spacer layer on the mandrel layer, wherein the spacer layer is a doped silicon material, and patterning the spacer layer. In another embodiment, a method for forming features on a substrate includes conformally forming a spacer layer on a mandrel layer on a substrate, wherein the spacer layer is a doped silicon material, selectively removing a portion of the spacer layer using a first gas mixture, and selectively removing the mandrel layer using a second gas mixture different from the first gas mixture.

公开(公告)号：US11527408B2

公开(公告)日：2022-12-13

申请号：US16867095

申请日：2020-05-05

Applicant: Applied Materials, Inc.

Inventor： Tzu-shun Yang ,  Rui Cheng ,  Karthik Janakiraman ,  Zubin Huang ,  Diwakar Kedlaya ,  Meenakshi Gupta ,  Srinivas Guggilla ,  Yung-chen Lin ,  Hidetaka Oshio ,  Chao Li ,  Gene Lee

IPC: H01L21/033 ,  H01L21/311 ,  H01L21/3213

Abstract: The present disclosure provides forming nanostructures utilizing multiple patterning process with good profile control and feature transfer integrity. In one embodiment, a method for forming features on a substrate includes forming a first mandrel layer on a material layer disposed on a substrate. A first spacer layer is conformally formed on sidewalls of the first mandrel layer, wherein the first spacer layer comprises a doped silicon material. The first mandrel layer is selectively removed while keeping the first spacer layer. A second spacer layer is conformally formed on sidewalls of the first spacer layer and selectively removing the first spacer layer while keeping the second spacer layer.

公开(公告)号：US12020908B2

公开(公告)日：2024-06-25

申请号：US17663937

申请日：2022-05-18

Applicant: Applied Materials, Inc.

Inventor： Yung-chen Lin ,  Chi-I Lang ,  Ho-yung Hwang

IPC: H01J37/32 ,  H01L21/3065

CPC classification number: H01J37/32467 ,  H01J37/32816 ,  H01L21/3065 ,  H01J2237/327 ,  H01J2237/3341

Abstract: Embodiments of the present disclosure generally relate to methods for etching materials. In one or more embodiments, the method includes positioning a substrate in a process volume of a process chamber, where the substrate includes a metallic ruthenium layer disposed thereon, and exposing the metallic ruthenium layer to an oxygen plasma to produce a solid ruthenium oxide on the metallic ruthenium layer and a gaseous ruthenium oxide within the process volume. The method also includes exposing the solid ruthenium oxide to a secondary plasma to convert the solid ruthenium oxide to either metallic ruthenium or a ruthenium oxychloride compound. The metallic ruthenium is in a solid state on the metallic ruthenium layer or the ruthenium oxychloride compound is in a gaseous state within the process volume.

公开(公告)号：US10741393B2

公开(公告)日：2020-08-11

申请号：US16259585

申请日：2019-01-28

Applicant: Applied Materials, Inc.

Inventor： Yung-chen Lin ,  Qingjun Zhou ,  Xinyu Bao ,  Ying Zhang

IPC: H01L21/033 ,  H01L21/8234 ,  H01L21/308 ,  H01L29/66 ,  H01L21/02

Abstract: Embodiments described herein relate to substrate processing methods. The methods include forming a patterned hardmask material on a substrate, forming first mandrel structures on exposed regions of the substrate, and depositing a gap fill material on the substrate over the hardmask material and the first mandrel structures. The first mandrel structures are removed to expose second regions of the substrate and form second mandrel structures comprising the hardmask material and the gap fill material. Fin structures are deposited on the substrate using the second mandrel structures as a mask.