Patent ID: 6592210
Filing Date: 2003-07-15
Classification: B41J,Y10T

Abstract:
A piezoelectric ink-jet print head, comprising:a substrate; a metallic layer over the substrate; a lower electrode layer over the metallic layer; a patterned piezoelectric layer over the lower electrode layer; a patterned upper electrode layer over the piezoelectric layer; a patterned thick film layer over the metallic layer, wherein the thick film layer has at least one slot hole that passes through the thick film layer and forms a cavity together with the metallic layer, and the cavity encloses the upper electrode layer and the piezoelectric layer; and a nozzle plate over the thick film layer, wherein the nozzle plate, the thick film layer and the metallic layer together form an ink cavity, and the nozzle plate has a nozzle continuous with the ink cavity.