Benzocyclobutene

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Chemical structure of benzocyclobutene
Chemical structure of benzocyclobutene

Benzocyclobutene (BCB) is the simplest polycyclic aromatic hydrocarbon, being composed of a benzene ring fused to a cyclobutene ring. It has chemical formula C8H6 and CAS number [4026-23-7].

BCB is frequently used to create photosensitive polymers. BCB-based polymer dielectrics may be spun on or applied to various substrates for use in Micro Electro-Mechanical Systems (MEMS) and microelectronics processing. Applications include wafer bonding, optical interconnects, low-K dielectrics, or even intracortical neural implants.

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