Evaluation of halomethylated poly(methylphenylsilane)s as electron-beam resists

Holder, Simon J., Jones, Richard G., Murphy, Julian J. (1997) Evaluation of halomethylated poly(methylphenylsilane)s as electron-beam resists. Journal of Materials Chemistry, 7 (9). pp. 1701-1707. ISSN 0959-9428. (doi:10.1039/a700413c)


Polysilane analogues of halomethylated poly(styrene)s, chloromethylated and bromomethylated poly(methylphenylsilane), have been prepared from the parent polymer by reaction with the appropriate halomethyl methyl ether. The polymers undergo a single-stage crosslinking reaction when irradiated with 20 kV electrons. As electron beam resists they operate in negative-working mode but their performance is poor in comparison to the corresponding poly(styrene) derivatives. The low lithographic sensitivities and attainable contrasts are shown to arise as a consequence of a competitive chain scission reaction which in the case of the bromomethylated system increases with increasing bromomethyl content. The radiation chemistries of the systems are rationalised in terms of modifications of the crosslinking and scission mechanisms that are thought to operate in the corresponding resists based on poly(chloromethylstyrene-stat-styrene).

Item Type: Article
DOI/Identification number: 10.1039/a700413c
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: M.A. Ziai
Date Deposited: 03 May 2009 09:26 UTC
Last Modified: 20 Jun 2019 10:24 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/18107 (The current URI for this page, for reference purposes)
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