摘要:
A cured polyphenylene polymer having a glass transition temperature no greater than 465 °C. An integrated circuit article having a fracture toughness as determined by the modified edge liftoff test of at least 0.3 MPa-M1/2.
摘要:
Phenyl cyanates substituted at both ortho positions and further substituted with at least one halo at the meta or para positions are prepared. They enhance ignition resistance, fire retardance, and toughness of polytriazines when added in varying amounts to polycyanate monomers before cure.
摘要:
Sont préparés des cyanates de phényle substitués aux deux positions ortho, et également substitués avec au moins un halo aux positions méta ou para. Ils augmentent la résistance à l'inflammabilité, la résistance au feu ainsi que celle des polytriazines lorsqu'on les ajoute dans des quantités variables à des monomères de polycyanates avant le durcissement.
摘要:
A suitable cross-linkable matrix precursor and a poragen can be treated to form a porous cross-linked matrix having a Tg of greater than 300° C. The porous matrix material has a lower dielectric constant than the corresponding non-porous matrix material, making the porous matrix material particularly attractive for a variety of electronic applications including integrated circuits, multichip modules, and flat panel display devices.
摘要:
An oligomer, uncured polymer or cured polymer comprising the reaction product of one or more polyfunctional compounds containing two or more cyclopentadienone groups and at least one polyfunctional compound containing two or more aromatic acetylene groups wherein at least some of the polyfunctional compounds contain three or more reactive groups. Such oligomers and uncured polymers may be cured to form cured polymers which are useful as dielectrics in the microelectronics industry, especially for dielectrics in integrated circuits.
摘要:
Compounds of ethynyl aromatic compounds having structure (I), wherein each Ar is an aromatic group of inertly-substituted aromatic group; each R is independently hydrogen, an alkyl, aryl or inertly-substituted alkyl or aryl group; L is a covalent bond or a group which links one Ar to at least one other Ar; n and m are integers of at least 2; and q is an integer of at least 1, form polymers which have high thermal stability. The monomers are useful for coating a wide variety of substances such as dielectric coatings where high thermal resistance is desirable including electronic components such as computer chips.