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- Title
Filling of Nanometric Pores with Polymer by Initiated Chemical Vapor Deposition.
- Authors
Van‐Straaten, Manon; Ben Hadj Mabrouk, Amal; Veillerot, Marc; Licitra, Christophe; D'Agosto, Franck; Jousseaume, Vincent
- Abstract
The integration of porous thin films using microelectronic compatible processes sometimes requires the protection of the interior of the pores during the critical integration steps. In this paper, the polymerization of neo‐pentyl methacrylate (npMA) is performed via initiated chemical vapor deposition (iCVD) on a porous organosilicate (SiOCH) and on a dense SiOCH. The characterizations by Fourier‐transform infrared spectroscopy, spectroscopic ellipsometry, and time‐of‐flight secondary ion mass spectrometry of the different stacks show that iCVD is a powerful technique to polymerize npMA in the nanometric pores and thus totally fill them with a polymer. The study of the pore filling for very short iCVD durations shows that the polymerization in the pores is complete in less than ten seconds and is uniform in depth. Then, the poly(npMA) film growth continues on top of the filled SiOCH layer. These characteristics make iCVD a straightforward and very promising alternative to other infiltration techniques in order to fill the porosity of microporous thin films.
- Subjects
CHEMICAL vapor deposition; SECONDARY ion mass spectrometry; THIN films; INFRARED spectroscopy; POLYMERS; ULTRAVIOLET spectrometry
- Publication
Macromolecular Rapid Communications, 2020, Vol 41, Issue 14, p1
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.202000200