Patent ID: 6164759
Filing Date: 2000-12-26
Classification: B41J,Y10T

Abstract:
A method for producing an inkjet head having an ejection chamber in communication with a nozzle and an ink supply channel, said method comprising the steps of:providing first, second and third substrates, each substrate having correspondingly opposed first and second surfaces;etching the first substrate on the first surface thereof to form a recess for the ejection chamber and a groove for the ink supply channel;forming a diaphragm disposed at a bottom wall of the ejection chamber;bonding the second substrate to the first surface of the first substrate to seal the ejection chamber while maintaining communication with the ink supply channel;forming an electrode on the third substrate;anodically bonding at a bonding temperature the third substrate to the second surface of the first substrate such that the electrode is aligned adjacent to the diaphragm with a gap therebetween;cooling the bonded substrates to a room temperature after said anodically bonding step; andprior to said anodically bonding step, determining the bonding temperature in said anodically bonding step to be within a temperature range such that a contraction of the first substrate during said cooling step is at least a contraction of the third substrate.