摘要:
Provided herein are thermally conductive underfill compositions which have a combination of melt viscosity, glass transition temperature (Tg), coefficient of thermal expansion, and/or transparency that renders such materials useful for the preparation of a variety of electronic devices, such as flip chip packages, stacked dies, hybrid memory cubes, through-silica via (TSV) devices, and the like. In certain embodiments of the invention, there are provided assemblies comprising a first article permanently adhered to a second article by a cured aliquot of a formulation as described herein. In certain embodiments of the invention, there are provided methods for adhesively attaching a first article to a second article. In certain embodiments of the present invention, there are provided methods for improving heat dissipation by electronic devices assembled employing thermally conductive, but electrically non-conductive adhesive.
摘要:
The present invention relates to compounds according to formula (I) and to heat-curable resin compositions based on polymaleimide resin systems comprising such compounds as comonomers:
wherein R 1 is hydrogen or an alkenylphenoxy group, R 2 is an alkenylphenoxy group, and R 3 is hydrogen or an alkyl group with 1 to 4 carbon atoms. The present invention also relates to crosslinked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, moulding compounds, as well as structural and/or electrical composites.
摘要:
A resin composition which has low stress, and good adhesive property in high temperature and high moisture environments and which is useful in adhesive applications in low stress, high moisture sensitivity level electronic packages. Preferably, a flexible epoxy anhydride adduct modified solid bismaleimide and solid benzoxazine resin composition that can survive high temperature and high moisture conditions and maintain good adhesion strength and minimize the stress resulting from a coefficient of thermal expansion mismatch between a silicon die and a substrate which is Ball Grid Array solder mask or a smart card polyethylene terephthalate or silver or copper metal lead frame.
摘要:
An adhesive paste comprising liquid adhesive resin is partially curable to a tacky state at a temperature below the final cure temperature, and fully curable to a solid state at a temperature higher than used to reach the tacky state. In its tacky state, the adhesive paste will have sufficient strength to bond a silicon chip to a substrate with less than one kg force at room temperature. This ability is critical for thinner dies that may break with the use of greater force.
摘要:
The invention provides a thermosetting resin composition comprising:
(a) a maleimide having the structure: wherein: m = 1, 2 or 3, (b) in the range of about 0.01 up to about 10 equivalents of a vinyl compound per equivalent of maleimide, wherein said vinyl compound has the structure: wherein:
q is 1, 2 or 3, and each Q is independently selected from -O-, -O-C(O)-, -C(O)- or -C(O)-O-,
(c) in the range of 0.2 up to 3 wt % of at least one free radical initiator, based on the total weight of the composition.
摘要:
An adhesive film that can solve the problem of pickup defect and improve the yield rate of semiconductor packages is provided. Specifically, it is an adhesive film, which comprises: (A) a bismaleimide resin; (B) a radical initiator; and (C) a coupling agent that contains a (meth)acrylic group. Further, an adhesive film with dicing tape, which comprises such an adhesive film laminated onto a dicing tape, is provided. Furthermore, a semiconductor package that comprises such an adhesive film with dicing tape is provided.
摘要:
A resin composition which has low stress, and good adhesive property in high temperature and high moisture environments and which is useful in adhesive applications in low stress, high moisture sensitivity level electronic packages. Preferably, a flexible epoxy anhydride adduct modified solid bismaleimide and solid benzoxazine resin composition that can survive high temperature and high moisture conditions and maintain good adhesion strength and minimize the stress resulting from a coefficient of thermal expansion mismatch between a silicon die and a substrate which is Ball Grid Array solder mask or a smart card polyethylene terephthalate or silver or copper metal lead frame.
摘要:
A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an addition product of an amine and a reactant to form an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. The composition when applied to fiberglass is cured to form a water-insoluble binder which exhibits good adhesion to glass. In a preferred embodiment the fiberglass is in the form of building insulation. In other embodiments the product is a microglass-based substrate for use in a printed circuit board, battery separator, filter stock, or reinforcement scrim.
摘要:
The invention provides a thermosetting resin composition comprising: (a) a maleimide having the structure: wherein: m = 1, 2 or 3, (b) in the range of about 0.01 up to about 10 equivalents of a vinyl compound per equivalent of maleimide, wherein said vinyl compound has the structure: wherein:q is 1, 2 or 3,and each Q is independently selected from -O-, -O-C(O)-, -C(O)- or -C(O)-O-, (c) in the range of 0.2 up to 3 wt % of at least one free radical initiator, based on the total weight of the composition.