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HomeProduct name listBenzocyclobutene

Benzocyclobutene

Synonym(s):Bicyclo[4.2.0]octa-1,3,5-triene

Benzocyclobutene Structural

What is Benzocyclobutene?

Chemical properties

Colorless liquid

The Uses of Benzocyclobutene

Benzocyclobutene (BCB) is composed of a benzene ring fused to a cyclobutane ring (chemical formula C8H8). It is frequently used to create photosensitive polymers. BCB-based polymer dielectrics may be spun on various substrates, with good step coverage properties that make them useful to planarize uneven topographies. Applications include wafer bonding, optical interconnects, semihermetic package sealing, passivation, and low-k dielectrics. BCB has been also reported as a material with good biocompatibility, being used in intracortical neural implants and other biomedical applications.

The Uses of Benzocyclobutene

Benzocyclobutene was used as the adhesive bonding material in adhesive wafer-level bonding technique. Photosensitive benzocyclobutene has been widely used as dielectric material in multilayer packaging applications. It was used in fabrication of high density multilayer interconnect structures using gold metallization and polymer interlayer dielectric.

What are the applications of Application

Benzocyclobutene is an adhesive bonding material

Definition

ChEBI: A carbobicyclic compound that is benzene fused to a cyclobutane ring.

Synthesis Reference(s)

Journal of the American Chemical Society, 97, p. 5600, 1975 DOI: 10.1021/ja00852a057
The Journal of Organic Chemistry, 38, p. 3412, 1973 DOI: 10.1021/jo00959a039
Tetrahedron Letters, 16, p. 1893, 1975

Properties of Benzocyclobutene

Boiling point: 150 °C/748 mmHg (lit.)
Density  0.957 g/mL at 25 °C (lit.)
refractive index  n20/D 1.541(lit.)
Flash point: 97 °F
storage temp.  Sealed in dry,Room Temperature
form  clear liquid
color  Colorless to Almost colorless
CAS DataBase Reference 694-87-1(CAS DataBase Reference)
NIST Chemistry Reference Bicyclo[4.2.0]octa-1,3,5-triene(694-87-1)
EPA Substance Registry System Bicyclo[4.2.0]octa-1,3,5-triene (694-87-1)

Safety information for Benzocyclobutene

Signal word Warning
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Health Hazard
GHS08
GHS Hazard Statements H226:Flammable liquids
H304:Aspiration hazard
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233:Keep container tightly closed.
P240:Ground/bond container and receiving equipment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P370+P378:In case of fire: Use … for extinction.
P405:Store locked up.
P403+P235:Store in a well-ventilated place. Keep cool.
P501:Dispose of contents/container to..…

Computed Descriptors for Benzocyclobutene

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