Benzocyclobutene
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Benzocyclobutene | |||||||||||||||
other names |
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Molecular formula | C 8 H 8 | |||||||||||||||
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properties | ||||||||||||||||
Molar mass | 104.15 g mol −1 | |||||||||||||||
density |
0.957 g cm −3 |
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boiling point |
150 ° C |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Benzocyclobutene (BCB) is a polycyclic aromatic hydrocarbon consisting of a combination of a benzene ring and a cyclobutane ring .
use
BCB is widely used in the manufacture of photosensitive polymers (e.g. photoresist ). In microsystem technology , BCB-based polymers are also used as dielectrics ; BCB has a relatively low permittivity ε r of 2.64 to 2.66. Further applications in this area are the use in wafer bonding , for the production of optical connections or also for intracortical neuronal implants. The thin layers are usually applied to the substrates by spin coating.
Individual evidence
- ↑ a b Entry on Benzocyclobutene at ChemBlink , accessed on February 25, 2011.
- ↑ a b Datasheet Benzocyclobutenes from Sigma-Aldrich , accessed on May 25, 2011 ( PDF ).
- ↑ Duixian Liu, Ulrich Pfeiffer, Janusz Grzyb: Advanced millimeter-wave technologies: antennas, packaging and circuits . John Wiley and Sons, 2009, ISBN 978-0-470-99617-1 , pp. 108 .