1. Field of the Invention
The present invention relates to an inkjet print head and a method of manufacturing the same, and more particularly, to an inkjet print head and a method of manufacturing the same that can prevent the ingress of foreign bodies, generated when nozzles are opened and inkjet print heads are cut into chip units, into the nozzles when side shooting type inkjet print heads are manufactured.
2. Description of the Related Art
In general, an inkjet print head is a structure that converts an electrical signal into a physical force so that ink is ejected in droplets through small nozzles. Inkjet print heads are divided into side shooting type inkjet print heads and roof shooting type inkjet print heads according to the direction in which pressure is exerted upon ink and the direction in which ink droplets are ejected.
As for a side shooting type inkjet print head, the direction in which pressure is exerted upon ink is perpendicular to the direction in which ink droplets are ejected. As for a roof shooting type inkjet print head, a direction in which pressure is exerted on ink is the same as a direction in which ink droplets are ejected.
As for the above-described side shooting type inkjet print head, various types of inkjet print heads can be manufactured in large quantities by increasing the integration of heads on a silicon wafer. However, since nozzles are formed by using a dicing process such as blade dicing, laser dicing or laser cutting, the ingress of foreign bodies, such as silicon particles produced during dicing, into the nozzles may occur.
Besides, blades may cause physical damage to the nozzles.
As such, if nozzles are blocked due to the ingress of foreign bodies or the shape of the nozzles undergoes physical damage, a directional failure or wetting may be caused when an inkjet print head ejects ink, thereby deteriorating the performance of inkjet print heads.