A new low dielectric material with high thermostability based on a thermosetting trifluoromethyl substituted aromatic molecule

Preparation of planar and hydrophobic benzocyclobutene‐based dielectric material from biorenewable rosin

“…FTIR spectra from Monomer 3 are shown in Figure . The peak at 3428 cm −1 belongs to the NH stretching vibration, and the absorption peak at 1467 cm −1 is ascribed to the in‐plane ring stretching vibration of CH in the four‐member ring of BCB group . Thus, all data are consistent with the chemical structure of Monomer 3.…”

Biorenewable rosin derived benzocyclobutene resin: a thermosetting material with good hydrophobicity and low dielectric constant

“…[13][14][15][16] Due to the increasingly demanding of the exceptional intermediate layer dielectric materials containing excellent dielectric properties, good hydrophobicity and thermal stability, the benzocyclobutene resins would be further functionalized to satisfy the specic requirement of the performance in some cases. [17][18][19] For example, introducing the siloxane group, uorine-containing group and low polarity bulky group would result in improvements of the dielectric properties and thermal stability. 5,[17][18][19][20][21] However, most of them reveal some defects, for example, the siloxane-based benzocyclobutene resins show excellent thermal stability but they can not lower the dielectric constant very well.…”

“…[17][18][19] For example, introducing the siloxane group, uorine-containing group and low polarity bulky group would result in improvements of the dielectric properties and thermal stability. 5,[17][18][19][20][21] However, most of them reveal some defects, for example, the siloxane-based benzocyclobutene resins show excellent thermal stability but they can not lower the dielectric constant very well. 10,12,22 The uorinated benzocyclobutene resins usually have low dielectric constant, but they always show poor adhesion to metal and poor dimensional stability.…”

“…21 Increasing the free volume by introducing bulky groups into the polymers can decrease the dielectric constant of the polymers. 17 Therefore, introducing the low polar bulky functional groups into the polymer turns into the feasible approach for designing and preparation of excellent dielectric materials. 21 Recently, polymeric materials derived from renewable biomasses such as lignin, cellulose and rosin have received more attention due to their depletion of petroleum resources and the demand of environmental protection.…”

New Fluoropolymers Having Both Low Water Uptake and a Low Dielectric Constant

“…It has been noted that fluoropolymers usually show low dielectric constants and the introduction of fluoro groups into the main chains or side chains of polymers can efficiently enhance their dielectric properties . Amongst fluoropolymers, those containing perfluorocyclobutane (PFCB) units have recently received much attention, due to their excellent properties including low water uptake and very good dielectric properties .…”