Patent ID: 8459779

Claim:
A heater chip module for a micro-fluid ejection head, comprising: a substrate defining a carrier having a plurality of fluid supply vias extending from a back surface to a front surface thereof; at least one die composed of silicon of a device wafer separate from said carrier, the die containing a plurality of fluid flow vias extending therethrough from a back surface to a front surface thereof and also containing electrical circuitry including a plurality of heater elements formed near said front surface, said heater elements interspersed with said fluid flow vias, said die being superimposed on said substrate such that said fluid flow vias of said die align with said fluid supply vias of said substrate and such that portions of said back surface on said die and portions of said front surface on said substrate align with one another and are disposed adjacent and facing one another; a conductor on said front surface of the substrate, wherein a metal via extends through said die to electrically connect the conductor and at least one of the heater elements; and a bond pad on said front surface of the substrate electrically connected to the conductor on said front surface of the substrate, the bond pad for remotely locating an electrical connection between the heater elements of the die to a remote circuit and residing beyond a periphery of the die to avoid interfering in maintenance operations of a nozzle plate of the die.