Abstract:
A dicing die bonding adhesive film for disposition between a semiconductor silicon wafer and a dicing support tape comprises a Layer-1 adhesive, which comes in contact with the dicing tape, and a Layer-2 adhesive, which comes in contact with the silicon semiconductor wafer, in which the adhesion of Layer 2 to the silicon wafer is higher than the adhesion of Layer 1 to the dicing tape by at least 0.1 N/cm.
Abstract:
A dicing die bonding adhesive film for disposition between a semiconductor silicon wafer and a dicing support tape comprises a Layer-1 adhesive, which comes in contact with the dicing tape, and a Layer-2 adhesive, which comes in contact with the silicon semiconductor wafer, in which the adhesion of Layer 2 to the silicon wafer is higher than the adhesion of Layer 1 to the dicing tape by at least 0.1 N/cm.
Abstract:
This invention is a low-voiding adhesive film prepared from a composition. The composition comprises a toughening polymer, a curable resin, a curing agent for the curable resin, a void reduction compound, and a curing agent for the void reduction compound. The void reduction compound has at least two Si—O moieties contiguous with each other and at least one reactive functionality. Additional embodiments of this invention are described, including a process for producing the low-voiding die attach film, a method for reducing voids in a semiconductor package using the film of this invention, and a semiconductor package assembled with the film of this invention.
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:
An adhesive film for die stacking at least two neighboring semiconductor dies containing metal wire bonds, comprises (a) Layer-1 adhesive, which comes in contact with the first semiconductor die and is capable of flowing around the metal wire bonds of that first semiconductor die at die attach temperatures, and (b) Layer-2 adhesive, which comes in contact with the second semiconductor die, in which Layer-2 adhesive comprises 30-85 weight % thermoplastic rubber with a glass transition temperature of less than 25° C. and a weight average molecular weight of greater than 100,000.
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.