公开(公告)号：US10199388B2

公开(公告)日：2019-02-05

申请号：US15214104

申请日：2016-07-19

Applicant: Applied Materials, Inc.

Inventor： Michael Wenyoung Tsiang ,  Praket P. Jha ,  Xinhai Han ,  Bok Hoen Kim ,  Sang Hyuk Kim ,  Myung Hun Ju ,  Hyung Jin Park ,  Ryeun Kwan Kim ,  Jin Chul Son ,  Saiprasanna Gnanavelu ,  Mayur G. Kulkarni ,  Sanjeev Baluja ,  Majid K. Shahreza ,  Jason K. Foster

IPC: H01L21/02 ,  C23C16/02 ,  C23C16/40 ,  C23C16/455 ,  C23C16/505 ,  C23C16/52 ,  H01L27/11582 ,  H01L27/11556 ,  H01L21/3115 ,  H01L29/06 ,  H01L21/768 ,  H01L27/11548 ,  H01L27/11575 ,  H01L21/3105 ,  H01L21/311

Abstract: Embodiments of the present disclosure generally relate to an improved method for forming a dielectric film stack used for inter-level dielectric (ILD) layers in a 3D NAND structure. In one embodiment, the method comprises providing a substrate having a gate stack deposited thereon, forming on exposed surfaces of the gate stack a first oxide layer using a first RF power and a first process gas comprising a TEOS gas and a first oxygen-containing gas, and forming over the first oxide layer a second oxide layer using a second RF power and a second process gas comprising a silane gas and a second oxygen-containing gas.

公开(公告)号：US10030306B2

公开(公告)日：2018-07-24

申请号：US14422148

申请日：2013-10-23

Applicant: Applied Materials, Inc.

Inventor： Nagarajan Rajagopalan ,  Xinhai Han ,  Michael Tsiang ,  Masaki Ogata ,  Zhijun Jiang ,  Juan Carlos Rocha-Alvarez ,  Thomas Nowak ,  Jianhua Zhou ,  Ramprakash Sankarakrishnan ,  Ganesh Balasubramanian ,  Amit Kumar Bansal ,  Jeongmin Lee ,  Todd Egan ,  Edward Budiarto ,  Dmitriy Panasyuk ,  Terrance Y. Lee ,  Jian J. Chen ,  Mohamad A. Ayoub ,  Heung Lak Park ,  Patrick Reilly ,  Shahid Shaikh ,  Bok Hoen Kim ,  Sergey Starik

IPC: G01N21/00 ,  C23C16/52 ,  G01B11/06 ,  H01L21/00 ,  H01L21/687 ,  H01L21/67 ,  C23C16/509 ,  C23C16/458 ,  C23C16/46 ,  C23C16/50 ,  C23C16/505 ,  G01N21/55 ,  G01N21/65 ,  C23C16/455

Abstract: Apparatus and method of processing a substrate according to a PECVD process is described. Temperature profile of the substrate is adjusted to change deposition rate profile across the substrate. Plasma density profile is adjusted to change deposition rate profile across the substrate. Chamber surfaces exposed to the plasma are heated to improve plasma density uniformity and reduce formation of low quality deposits on chamber surfaces. In situ metrology may be used to monitor progress of a deposition process and trigger control actions involving substrate temperature profile, plasma density profile, pressure, temperature, and flow of reactants.

公开(公告)号：US09458537B2

公开(公告)日：2016-10-04

申请号：US14869371

申请日：2015-09-29

Applicant: Applied Materials, Inc.

Inventor： Nagarajan Rajagopalan ,  Xinhai Han ,  Michael Wenyoung Tsiang ,  Masaki Ogata ,  Zhijun Jiang ,  Juan Carlos Rocha-Alvarez ,  Thomas Nowak ,  Jianhua Zhou ,  Ramprakash Sankarakrishnan ,  Amit Kumar Bansal ,  Jeongmin Lee ,  Todd Egan ,  Edward Budiarto ,  Dmitriy Panasyuk ,  Terrance Y. Lee ,  Jian J. Chen ,  Mohamad A. Ayoub ,  Heung Lak Park ,  Patrick Reilly ,  Shahid Shaikh ,  Bok Hoen Kim ,  Sergey Starik ,  Ganesh Balasubramanian

IPC: G01N21/00 ,  C23C16/52 ,  G01B11/06 ,  H01L21/00 ,  H01L21/687 ,  H01L21/67 ,  C23C16/509 ,  C23C16/458 ,  C23C16/46 ,  C23C16/50 ,  C23C16/505 ,  G01N21/55 ,  G01N21/65 ,  C23C16/455

CPC classification number: C23C16/52 ,  C23C16/45565 ,  C23C16/4557 ,  C23C16/458 ,  C23C16/46 ,  C23C16/50 ,  C23C16/505 ,  C23C16/509 ,  C23C16/5096 ,  G01B11/0625 ,  G01B11/0683 ,  G01N21/55 ,  G01N21/658 ,  G01N2201/1222 ,  H01L21/00 ,  H01L21/67248 ,  H01L21/67253 ,  H01L21/687

Abstract: A method of processing a substrate according to a PECVD process is described. Temperature profile of the substrate is adjusted to change deposition rate profile across the substrate. Plasma density profile is adjusted to change deposition rate profile across the substrate. Chamber surfaces exposed to the plasma are heated to improve plasma density uniformity and reduce formation of low quality deposits on chamber surfaces. In situ metrology may be used to monitor progress of a deposition process and trigger control actions involving substrate temperature profile, plasma density profile, pressure, temperature, and flow of reactants.