METHOD FOR FORMING VIA HOLE OF INKJET PRINTER HEAD

摘要

PURPOSE: A method for forming a via hole of an inkjet printer head is provided to improve productivity by reducing a processing time of a via hole and to minimize a producing cost. CONSTITUTION: A method for forming a via hole in an inkjet printer comprises a first stage installing a bubble generating unit containing a heater around a via hole forming area; a second stage mounting a first mask layer(601) covering entire portion except the via hole forming area by being mounted on a side of a base plate; a third stage forming a second mask layer(602) covering the entire portion except the via hole forming area by being installed on the other side of the base plate; a forth stage forming a first well(110) of a specific depth on the via hole forming area by injecting a sand(19) of high speed and high pressure into a side portion of the base plate; a fifth stage forming a via hole by installing a second well(120) on the via hole forming area through injecting the sand of the high pressure and speed into the other side portion of the base plate; and a sixth stage removing the first and second masks.