Patent ID: 6497470
Filing Date: 2002-12-24
Classification: B41J,Y10T

Abstract:
Process for manufacturing a thermal ink jet printhead, comprising the steps of:disposing of a substrate provided with a slot and having a first face and a second face opposite said first face; and disposing of a die of semiconductor material containing means for generating the emission of droplets of ink, wherein it further comprises the steps of: disposing of a temperature sensor assembled on said die of semiconductor material, said temperature sensor being provided for detecting the temperature of said emission means during operation of said printhead; disposing of a flat cable comprising a plurality of nozzles through which said droplets of ink are emitted; depositing, on said second face of said substrate, all around said slot a strip shaped resistor provided; attaching said die to said first face of said substrate; dividing said die into two substantially symmetrical parts by means of a through cut in correspondence with said slot in said substrate; sticking said flat cable on said die by means of heating produced by said resistor; and detecting by means of said temperature sensor, the temperature of the sticking zone in order to dose the heating produced by said resistor.