INKJET PRINT HEAD AND MANUFACTURING METHOD THEREOF

摘要

An inkjet print head includes a substrate formed with a feed hole through which ink is transferred, and a notch prevention layer covering an area on the substrate where the feed hole is to be formed. Plasma electrons flown into the feed hole while the hole is formed on the substrate through dry etching can move through the notch prevention layer. As a result, corrosion of the substrate around the feed hole by the electrons can be prevented, thereby achieving a uniform width of the feed hole.