Novel High Sensitivity EUV Photoresist for Sub-7 nm Node

Nagai T., Nakagawa H., Naruoka T., Dei S., Tagawa S., Oshima A., ...Daha Fazla

JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY, cilt.29, sa.3, ss.475-478, 2016 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.2494/photopolymer.29.475
  • Dergi Adı: JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.475-478
  • Anahtar Kelimeler: EUV, 14 nm HP, 7 nm node, resolution, sensitivity, CAR
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

Extreme ultraviolet lithography (EUVL) has been recognized as the most promising candidate for the manufacture of semiconductor devices for the 7 nm node and beyond. A key point in the successful introduction of EUV lithography in high volume manufacture (HVM) is the effective EUV dose utilization while simultaneously realizing ultra-high resolution and low line edge roughness (LER). Here we show EUV resist sensitivity improvement with the use of a photosensitized chemically amplified resist PSCAR (TM) system. The evaluation of this new chemically amplified resist (CAR) as performed using EUV interference lithography (EUV-IL) is described and the fundamentals are discussed.