Abstract:
Die attach adhesive compositions exhibit improved adhesion and conductivity by the addition of a metal salt of 8-quinolinol or of an 8-quinolinol derivative as an adhesion and/or conductivity promoter. The metal salt of 8-quinolinol or of an 8-quinolinol derivative is formed by coordination with a metal selected from the group consisting of Cu, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, Ga, In, Tl, Yt, La, Pb, Sb, Bi, Cr, Mo, Mn, Fe, Co, Ni, Pd, Ce, and Pr. Examples of quinolinol derivative salts have the structures:
Abstract:
Benzoxazine compounds can be cured with epoxies and fluxing agents to afford thermoset materials with particular utility as no-flow underfilling encapsulants within the semiconductor packaging industry.
Abstract:
A method of fluxing a solder or a metal substrate uses a fluxing composition that comprises a fluxing agent, in which the fluxing agent is a benzotriazole or a benzotriazole adduct. The adduct contains a benzotriazole segment and a segment with a curable and polymerizable functionality.
Abstract:
A fluxing composition comprises a fluxing agent, in which the fluxing agent is a benzotriazole or a benzotriazole adduct. The adduct contains a benzotriazole segment and a segment with a curable and polymerizable functionality.
Abstract:
A fluxing composition comprises a fluxing agent in which the fluxing agent is a compound having (i) an aromatic ring, (ii) at least one —OH, —NHR (where R is hydrogen or lower alkyl), or —SH group (iii) an electron-withdrawing or electron-donating substituent on the aromatic ring, and (iv) no imino group.
Abstract:
This invention is a film adhesive prepared from an adhesive composition comprising a polymer system, a film forming rubber compound, and curing agents for the polymeric system. The polymer system comprises a base polymer and electron donor and electron acceptor functionality.
Abstract:
This invention is a film adhesive prepared from an adhesive composition comprising a polymer system, a film forming rubber compound, and curing agents for the polymeric system. The polymer system comprises a base polymer and electron donor and electron acceptor functionality.
Abstract:
Die attach adhesive compositions comprise a quinolinol or a quinolinol derivative as an adhesion promoter. An exemplary quinolinol derivative has the structure:
Abstract:
A linear or cyclic siloxane compound contains pendant carbon to carbon double bonds, Si—H bonds, and pendant oxetane functionality. These compounds have two curing temperatures, one associated with a hydrosilation reaction between the carbon to carbon double bond and the Si—H entity, and the other associated with the ring opening of the oxetane.
Abstract:
These compounds contain an oxetane functionality and a maleimide functionality. The oxetane functionality is homopolymerizable in reactions that undergo cationic or anionic ring opening, and the maleimide functionality is homopolymerizable, or polymerizable with compounds such as electron donor compounds. The dual functionality allows for dual cure processing. The compounds have the structure in which R1 is a methyl or ethyl group, R2 is a divalent hydrocarbon, X and Y independently are a direct bond, or an ether, ester, amide, or carbamate functionality, and Q is a divalent organic group, and provided that X and Y will not both be direct bonds.