Mask Bias optimization for NTD lithography process

Liwan Yue*, Yanqiu Li, Zhibiao Mao, Qiang Wu, Yanli Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

NTD (Negative Tone Development) lithography process is widely used in the manufacture of the advanced technology. Because the NTD solution behavior is different from PTD (Positive Tone Development), the NTD photo resist has better litho-capability than PTD for certain kinds of lithography features such as trench and hole patterns. It is more difficult to both setup the NTD process and develop NTD photo resist than PTD process. To make lithography process and photoresist meeting the requirement for NTD process, Mask Bias for an anchor point is one of important factors.In this paper, we will report that by using different Mask Bias of anchor point, the NTD process with a certain photoresist can be optimized to meet the lithography process requirement and get better process performance.

Original languageEnglish
Title of host publicationIWAPS 2022 - 2022 6th International Workshop on Advanced Patterning Solutions
EditorsYayi Wei, Tianchun Ye
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350397666
DOIs
Publication statusPublished - 2022
Event6th International Workshop on Advanced Patterning Solutions, IWAPS 2022 - Virtual, Online, China
Duration: 21 Oct 202222 Oct 2022

Publication series

NameIWAPS 2022 - 2022 6th International Workshop on Advanced Patterning Solutions

Conference

Conference6th International Workshop on Advanced Patterning Solutions, IWAPS 2022
Country/TerritoryChina
CityVirtual, Online
Period21/10/2222/10/22

Keywords

  • Mask Bias)
  • lithography
  • photo resist

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