Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Miyako Matsui"'
Autor:
Miyako Matsui
Publikováno v:
Babel (00053503); 2023, Vol. 56 Issue 3, p5-11, 7p
Autor:
Masaya Imai, Miyako Matsui, Ryoko Sugano, Takashi Shiota, Ko-ichi Takasaki, Makoto Miura, Yohei Ishii, Kenichi Kuwahara
Publikováno v:
Japanese Journal of Applied Physics. 62:SI1014
The Ru etching mechanism was investigated using O2/Cl2 plasma with O, ClO, and Cl radicals. The etch rate drastically increased with a 10%–20% addition of Cl2 to O2 and was lower when using pure O2 or Cl2-rich gas in an ECR etcher. Experimental res
Publikováno v:
Journal of Vacuum Science & Technology A. 39:043008
As part of the self-aligned processes to fabricate a 3D device, highly selective SiCN etching using NF3/Ar-based gas plasma generated by microwave electron-cyclotron resonance was investigated. The etching rate of SiCN etched by NF3/Ar plasma was hig
Autor:
Kenichi Kuwahara, Miyako Matsui
Publikováno v:
Japanese Journal of Applied Physics. 57:06JB01
A cyclic process for highly selective SiO2 etching with atomic-scale precision over Si3N4 was developed by using BCl3 and fluorocarbon gas chemistries. This process consists of two alternately performed steps: a deposition step using BCl3 mixed-gas p
Publikováno v:
Plasma Sources Science and Technology. 11:A202-A205
To investigate the mechanism of highly selective SiO2 contact hole etching, we analysed surfaces exposed to C4F8/Ar/O2 plasma in a dual-frequency parallel-plate etching system. The thickness and composition of the fluorocarbon layer on large areas an
Publikováno v:
Japanese Journal of Applied Physics. 56:06HB03
We investigated the effects of gas pressure on the dissociation of C4F8/Ar plasma and the formations of fluorocarbon layers on etched materials by SiO2 etching using pulsed-microwave electron-cyclotron-resonance plasma. Dissociated radicals and molec
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 19:2089-2096
The relationship between reactive species flux and their modified surfaces was studied in a SiO2 highly selective etching over Si and Si3N4. Sample specimens with large patterns and φ 0.35 μm contact holes were etched using C4F8/Ar/O2 plasma in a d
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 19:1282-1288
We characterized the surface reaction layers formed by a fluorocarbon plasma for SiO2 selective etching over Si and Si3N4, in order to understand the etch mechanism and develop a process and tool for future ultralarge-scale integrated circuit process
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 17:1562-1569
The etch rates of SiO2, photoresist, Si, and SiN in a 27 MHz reactive ion etching system at constant ion flux of 6×1016 cm−2 s−1 and ion energy of 1450 V were studied. Typical incident flux densities of CF2 and CF+ were on the order of 1017 and