Patent ID: 8657413

Claim:
A die attach composition comprising: a cross-linkable epoxy resin having a rigid backbone and including epoxidized bisphenol A present at an amount from about 2.5 percent to about 7.5 percent by weight of the die attach composition and epoxidized bisphenol F present at an amount from about 40 percent to about 50 percent by weight of the die attach composition; an epoxy siloxane resin present at an amount equal to or above 14.2 percent by weight of the die attach composition; a fumed silica filler present at an amount from about 0.01 to about 10 percent by weight of the die attach composition; an amine curing agent; and a silane coupling agent, wherein said die attach composition provides accurate placement of a heater chip on a flat substrate when manufacturing an inkjet printhead assembly.