Patent ID: 8449082

Claim:
A method for manufacturing a mounting substrate for a fluid ejection assembly, comprising: molding a housing portion of the mounting substrate using a first shot of a two-shot injection molding process, the housing portion including a recess; and molding a die-attach portion within the recess of the housing portion using a second shot of the two-shot injection-molding process, the die-attach portion including a first passageway and a second passageway, wherein the die-attach portion includes a first end, wherein the first passageway and the second passageway each have a first end that is proximate the first end of the die-attach portion, and the first passageway and the second passageway each have a second end that is distal from the first end of the die-attach portion, and wherein the step of molding the die-attach portion further comprises injecting plastic into a single injection hole proximate the first end of the die-attach portion.